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Zhang J, Yu K, Yu M, Dong X, Tariq Sarwar M, Yang H. Facet-engineering strategy of phosphogypsum for production of mineral slow-release fertilizers with efficient nutrient fixation and delivery. WASTE MANAGEMENT (NEW YORK, N.Y.) 2024; 182:259-270. [PMID: 38677143 DOI: 10.1016/j.wasman.2024.04.041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Revised: 04/02/2024] [Accepted: 04/22/2024] [Indexed: 04/29/2024]
Abstract
Phosphogypsum (PG) presents considerable potential for agricultural applications as a secondary primary resource. However, it currently lacks environmentally friendly, economically viable, efficient, and sustainable reuse protocols. This study firstly developed a PG-based mineral slow-release fertilizer (MSRFs) by internalization and fixation of urea within the PG lattice via facet-engineering strategy. The molecular dynamics simulations demonstrated that the binding energy of urea to the (041) facet of PG surpassed that of the (021) and (020) facets, with urea's desorption energy on the (041) facet notably higher than on the (021) and (020) facets. Guided by these calculations, we selectively exposed the (041) dominant facet of PG, and then achieving complete urea fixation within the PG lattice to form urea-PG (UPG). UPG exhibited a remarkable 48-fold extension in N release longevity in solution and a 45.77% increase in N use efficiency by plants compared to conventional urea. The facet-engineering of PG enhances the internalization and fixation efficiency of urea for slow N delivery, thereby promoting nutrient uptake for plant growth. Furthermore, we elucidated the intricate interplay between urea and PG at the molecular level, revealing the involvement of hydrogen and ionic bonding. This specific bonding structure imparts exceptional thermal stability and water resistance to the urea within UPG under environmental conditions. This study has the potential to provide insights into the high-value utilization of PG and present innovative ideas for designing efficient MSRFs.
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Affiliation(s)
- Jun Zhang
- Hunan Key Laboratory of Mineral Materials and Application, School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China
| | - Kun Yu
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, China University of Geosciences, Wuhan 430074, China; Laboratory of Advanced Mineral Materials, China University of Geosciences, Wuhan 430074, China; Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Menghan Yu
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, China University of Geosciences, Wuhan 430074, China; Laboratory of Advanced Mineral Materials, China University of Geosciences, Wuhan 430074, China; Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Xiongbo Dong
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, China University of Geosciences, Wuhan 430074, China; Laboratory of Advanced Mineral Materials, China University of Geosciences, Wuhan 430074, China; Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China.
| | - Muhammad Tariq Sarwar
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, China University of Geosciences, Wuhan 430074, China; Laboratory of Advanced Mineral Materials, China University of Geosciences, Wuhan 430074, China; Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Huaming Yang
- Hunan Key Laboratory of Mineral Materials and Application, School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; Engineering Research Center of Nano-Geomaterials of Ministry of Education, China University of Geosciences, Wuhan 430074, China; Laboratory of Advanced Mineral Materials, China University of Geosciences, Wuhan 430074, China; Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
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2
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Zhu Y, Li Y, Zhou X, Li H, Guo M, Zhang P. Glucose microenvironment sensitive degradation of arginine modified calcium sulfate reinforced poly(lactide- co-glycolide) composite scaffolds. J Mater Chem B 2024; 12:508-524. [PMID: 38108579 DOI: 10.1039/d3tb01595e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
Poly(lactide-co-glycolide) (PLGA) and calcium sulfate composites are promising biodegradable biomaterials but are still challenging to use in people with high levels of blood glucose or diabetes. To date, the influence of glucose on their degradation has not yet been elucidated and thus calls for more research attention. Herein, a novel calcium sulfate whisker with L-arginine was used to effectively tune its crystal morphology and was employed as a reinforced phase to construct the PLGA-based composite scaffolds (ArgCSH/PLGA) with a sleeve porous structure. ArgCSH/PLGA showed excellent elastic modulus and strength in the compression and bending models. Moreover, an in vitro immersion test showed that ArgCSH/PLGA possessed degradation and redeposition behaviors sensitive to glucose concentration, and the adsorbed Arg played a crucial role in the degradation process. The subsequent cell functional evaluation showed that ArgCSH could effectively protect cells from damage caused by AGEs and promote osteogenic differentiation. The corresponding degradation products of ArgCSH/PLGA displayed the ability to regulate osteoblast bone differentiation and accelerate matrix mineralization. These findings provide new insights into the interaction between biomaterials and the physiological environment, which may be useful in expanding the targeted choice of efficient bone graft biodegradable materials for diabetic osteoporosis.
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Affiliation(s)
- Yongzhan Zhu
- 8th Department of Orthopaedics, Foshan Hospital of Traditional Chinese Medicine, Foshan 528000, P. R. China.
| | - Yinghao Li
- 8th Department of Orthopaedics, Foshan Hospital of Traditional Chinese Medicine, Foshan 528000, P. R. China.
| | - Xiaosong Zhou
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, P. R. China.
- School of Applied Chemistry and Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, P. R. China
| | - Haoxuan Li
- Department of Spine Surgery, China-Japan Union Hospital of Jilin University, N. 126 Xiantai Street, Changchun 130033, Jilin, P. R. China
| | - Min Guo
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, P. R. China.
| | - Peibiao Zhang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, P. R. China.
- School of Applied Chemistry and Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, P. R. China
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3
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Du J, Tian L, Qi M, Zhang C, Di H, Zhi X, Zhu J. Revealing maleic acid role in the preparation of α-hemihydrate gypsum from titanium gypsum through experiments and DFT calculations. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 897:166405. [PMID: 37597561 DOI: 10.1016/j.scitotenv.2023.166405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Revised: 08/04/2023] [Accepted: 08/16/2023] [Indexed: 08/21/2023]
Abstract
Titanium gypsum (TG) is rarely used to produce α-hemihydrate gypsum (α-HH) because of its poor crystallinity and high impurity and moisture contents. Here, a method is proposed to prepare α - HH by adjusting the reaction temperature, CaCl2 solution concentration and maleic acid dosage based on acid leaching and heat-treated TG as raw material. The effect of maleic acid and Fe3+ ions on the preparation of α-HH were systematically analyzed using density functional theory (DFT) and typical materials characterization methods, X-ray diffraction (XRD), scanning electron microscope (SEM) and X-ray photoelectron spectroscopy (XPS). Under the optimal conditions (CaCl2 concentration of 23 % and reaction temperature of 95 °C), the maleic acid is chemically adsorbed on the crystal surfaces of α-HH, the strongest adsorption is in the (111) surface. Increasing the maleic acid concentration from 0 to 0.15 % decreased the aspect ratio of the α-HH crystals from 8.26 to 0.96, respectively, where the optimal dosage was 0.1 %. The theoretical results proved that the substitution energy of Fe3+ was greater than that of Ca2+, and Fe3+ ions can spontaneously enter the α-HH lattice to replace Ca2+ ions. Furthermore, the adsorption energy of maleic acid on the (111) surface increased after the substitution of Fe3+ to generate a synergistic effect that hinders α-HH growth along the c-axis, resulting in the preferred morphology. The results of this study provide a new method for using waste TG to produce a high-value-added product.
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Affiliation(s)
- Jingwei Du
- School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 45400, Henan, China
| | - Lin Tian
- School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 45400, Henan, China
| | - Manfu Qi
- LB Group Co., Ltd, Jiaozuo 45411, Henan, China
| | - Chen Zhang
- School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 45400, Henan, China
| | - Hongfeng Di
- School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 45400, Henan, China
| | - Xiao Zhi
- China National Building Material Group Co., Ltd, Beijing 10000, China.
| | - Jianping Zhu
- School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 45400, Henan, China.
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4
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Xie G, Guan Q, Zhou F, Yu W, Yin Z, Tang H, Zhang Z, Chi R. A Critical Review of the Enhanced Recovery of Rare Earth Elements from Phosphogypsum. Molecules 2023; 28:6284. [PMID: 37687115 PMCID: PMC10488757 DOI: 10.3390/molecules28176284] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 08/21/2023] [Accepted: 08/25/2023] [Indexed: 09/10/2023] Open
Abstract
The increasing demand for rare earth elements (REEs), especially from new and innovative technology, has strained their supply, which makes the exploration of new REE sources necessary, for example, the recovery of REEs from phsophogypsum (PG). PG is a byproduct during the wet production of phosphoric acid, which is an attractive secondary resource for REEs due to a large amount of REEs locked in them. In most cases, REEs contained in PG are mainly encapsulated in the gypsum crystal, leading to a low leaching efficiency. Therefore, it is particularly important to use various methods to enhance the leaching of REEs from PG. In this review, we summarized and classified various enhanced leaching methods for the recovery of REEs from PG, and the advantages and disadvantages of different methods were compared. A joint method of recrystallization and RIL may be a promising enhanced leaching approach for the recovery of REEs from PG. Recrystallization could achieve both the complete REE release and simultaneous preparation of industrial materials with high value added, such as high-strength α-hemihydrate gypsum by phase transformation of PG, and the RIL technology could adsorb the releasing REEs and realize their efficient extraction. Such a combination appears to show significant advantages because of high REE recovery, as well as high value-added product preparation at low cost.
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Affiliation(s)
- Gang Xie
- China Nonferrous Metal Industry Technical Development and Exchange Center Co., Ltd., Beijing 100038, China
| | - Qingjun Guan
- Hunan Province Key Laboratory of Coal Resource Clean-Utilization and Mine Environment Protection, Hunan University of Science and Technology, Xiangtan 411201, China
- School of Resource Environment and Safety Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
| | - Fujia Zhou
- School of Resource Environment and Safety Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
| | - Weijian Yu
- Hunan Province Key Laboratory of Coal Resource Clean-Utilization and Mine Environment Protection, Hunan University of Science and Technology, Xiangtan 411201, China
- School of Resource Environment and Safety Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
| | - Zhigang Yin
- Tianqi Lithium Corporation, Chengdu 610213, China
- Lithium Resources and Lithium Materials Key Laboratory of Sichuan Province, Tianqi Lithium Corporation, Chengdu 610000, China
| | - Honghu Tang
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China
| | - Zhenyue Zhang
- School of XingFa Mining Engineering, Wuhan Institute of Technology, Wuhan 430073, China
| | - Ru'an Chi
- Hubei Three Gorges Laboratory, Yichang 443007, China
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5
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Zhu G, Yang Y, He L, Li H, Meng Z, Zheng G, Li F, Su X, Xi B, Li Z. Novel Synergistic Process of Impurities Extraction and Phophogypsum Crystallization Control in Wet-Process Phosphoric Acid. ACS OMEGA 2023; 8:28122-28132. [PMID: 37576616 PMCID: PMC10413463 DOI: 10.1021/acsomega.3c01168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 05/03/2023] [Indexed: 08/15/2023]
Abstract
Phosphogypsum, as a byproduct of wet-process phosphoric acid reaction, has caused many environmental pollution problems. To improve the property and purity of phosphogypsum in the wet-process phosphoric acid process, a liquid-solid-liquid three-phase acid hydrolysis synergistic extraction reaction system was established by adding a certain amount of extractant in the actual production process. In order to study the extraction effect and residue of impurities in the reaction system, the phase, morphology, and impurity occurrences of phosphogypsum were systematically analyzed. The results showed that when the reaction time was 7 h, the reaction temperature was 80 °C, the reaction speed was 200 r/min, the volume ratio of the extractant to diluent (dilution ratio) was 1:4 and the volume ratio of the oil phase/aqueous phase (O/A ratio) was 1:1, P2O5 conversion was the highest in phosphate rock, and the residual P2O5 content in phosphogypsum was as low as 0.36%. The morphology of the phosphogypsum crystal was uniform and coarse long strip. The main forms of residual impurities were silicate, aluminum fluoride with crystal water, aluminate, phosphate, and fluoride. Meanwhile, the residual amount of main impurities in phosphogypsum was significantly reduced. Through this novel method, the property of phosphogypsum can be improved through the generation process and is greatly beneficial for its utilization and the recycling development of the wet-process phosphoric acid industry.
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Affiliation(s)
- Ganyu Zhu
- CAS
Key Laboratory of Green Process and Engineering, National Engineering
Research Center of Strategic Metal Resources Green Recycling and Utilization, Institute of Process Engineering, Chinese Academy
of Sciences, Beijing 100190, China
| | - Yunrui Yang
- CAS
Key Laboratory of Green Process and Engineering, National Engineering
Research Center of Strategic Metal Resources Green Recycling and Utilization, Institute of Process Engineering, Chinese Academy
of Sciences, Beijing 100190, China
- School
of Chemical Engineering, University of Chinese
Academy of Sciences, Beijing 100049, China
| | - Lei He
- Yidu
Xingfa Chemical Co. LTD, Yidu, Hubei 443311, China
| | - Huiquan Li
- CAS
Key Laboratory of Green Process and Engineering, National Engineering
Research Center of Strategic Metal Resources Green Recycling and Utilization, Institute of Process Engineering, Chinese Academy
of Sciences, Beijing 100190, China
- School
of Chemical Engineering, University of Chinese
Academy of Sciences, Beijing 100049, China
| | - Ziheng Meng
- CAS
Key Laboratory of Green Process and Engineering, National Engineering
Research Center of Strategic Metal Resources Green Recycling and Utilization, Institute of Process Engineering, Chinese Academy
of Sciences, Beijing 100190, China
| | | | - Fang Li
- Yidu
Xingfa Chemical Co. LTD, Yidu, Hubei 443311, China
| | - Xiaodan Su
- School
of Chemistry and Chemical Engineering, University
of Jinan, Jinan 250022, China
| | - Benjun Xi
- Hubei
Three Gorges Laboratory, Yichang, Hubei 443311, China
| | - Zhongjun Li
- Hubei
Three Gorges Laboratory, Yichang, Hubei 443311, China
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6
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Feng F, Cui YX, Hu YQ, Hu S, Zhang AD. Mussel-inspired dynamic facet-selective capping approach to highly uniform α-calcium sulfate hemihydrate crystals. RSC Adv 2023; 13:15342-15346. [PMID: 37223649 PMCID: PMC10201340 DOI: 10.1039/d3ra00835e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 03/30/2023] [Indexed: 05/25/2023] Open
Abstract
We report herein a dynamic facet-selective capping (dFSC) strategy for α-calcium sulfate hemihydrate crystal growth from dihydrate gypsum in the presence of a catechol-derived PEI capping agent (DPA-PEI) with inspiration by the biomineralization process of mussel. The crystal shape is controllable and varies from long and pyramid-tipped prisms to thin hexagonal plate. The highly uniform truncated crystals have extremely high compression and bending strengths after hydration molding.
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Affiliation(s)
- Fu Feng
- College of Chemistry and Environmental Engineering, Hubei Minzu University Enshi Hubei 445000 China
| | - Yu-Xin Cui
- College of Chemistry and Environmental Engineering, Hubei Minzu University Enshi Hubei 445000 China
| | - Yong-Qi Hu
- College of Chemistry and Environmental Engineering, Hubei Minzu University Enshi Hubei 445000 China
| | - Sheng Hu
- College of Chemistry and Environmental Engineering, Hubei Minzu University Enshi Hubei 445000 China
| | - Ai-Dong Zhang
- Key Laboratory of Pesticide and Chemical Biology of Ministry of Education, College of Chemistry, Central China Normal University Wuhan 430079 China
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7
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Conversion of phosphogypsum into α-hemihydrate in the presence of potassium acid phthalate and Ca2+: Experimental and DFT studies. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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8
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Deep removal of phosphorus and synchronous preparation of high-strength gypsum from phosphogypsum by crystal modification in NaCl-HCl solutions. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121592] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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9
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Fu H, Li M, Huang J, Cao S, Lin J, Yuan M, Jiang G. Insights into the Role of Na + on the Transformation of Gypsum into α-Hemihydrate Whiskers in Alcohol-Water Systems. ACS OMEGA 2022; 7:15570-15579. [PMID: 35571779 PMCID: PMC9096823 DOI: 10.1021/acsomega.2c00347] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 04/07/2022] [Indexed: 06/15/2023]
Abstract
Alcohol-water solution-mediated transformation of gypsum into α-hemihydrate (α-HH) whiskers provides a green alternative for the high-value-added recycling of flue gas desulfurization (FGD) gypsum. However, the role of non-lattice cations during the transformation is still unclear. We report an evolution from "boosting-retarding" to "boosting-retarding-boosting" and finally to "boosting only" effect of non-lattice Na+ functioned by the concentration of ethylene glycol (EG) in water solutions. The driving force increased almost linearly upon the introduction of Na+ through the formation of ion pairs, and a higher slope was obtained at a higher EG concentration. Adsorption of Na+ ions and solidification of eugsterite on gypsum surfaces blocked the nucleation sites of α-HH. The retarding effect first rapidly increased and gradually approached a limit, following a parabolic trend after Na+ ions were introduced. Pentasalt, with a structure similar to that of α-HH, precipitated on the gypsum surface at higher c(Na+). The interaction of the driving force and the structural evolution of calcium sulfate ionic clusters accounts for the evolution of transformation kinetics. The retardation zone was compressed with the increase in EG volume ratios, and a monotonic boosting effect upon Na+ was observed at a 35.0 vol % of EG. Nucleation kinetics dominates the aspect ratio of α-HH whiskers. This study may provide a significant guidance for the utilization of FGD gypsum.
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Affiliation(s)
- Hailu Fu
- Department
of Environmental Engineering, China Jiliang
University, Hangzhou 310018, China
| | - Mengfan Li
- Department
of Environmental Engineering, China Jiliang
University, Hangzhou 310018, China
| | - Jianshi Huang
- Department
of Environmental Engineering, China Jiliang
University, Hangzhou 310018, China
| | - Shuang Cao
- Department
of Environmental Engineering, China Jiliang
University, Hangzhou 310018, China
| | - Jilei Lin
- Department
of Environmental Engineering, China Jiliang
University, Hangzhou 310018, China
| | - Mengxuan Yuan
- Department
of Environmental Engineering, China Jiliang
University, Hangzhou 310018, China
| | - Guangming Jiang
- Engineering
Research Center for Waste Oil Recovery Technology and Equipment, Ministry
of Education, Chongqing Technology and Business
University, Chongqing 400067, China
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10
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Li Y, Ni W, Duan P, Zhang S, Wang J. Experimental Study and Mechanism Analysis of Preparation of α-Calcium Sulfate Hemihydrate from FGD Gypsum with Dynamic Method. MATERIALS 2022; 15:ma15093382. [PMID: 35591716 PMCID: PMC9104283 DOI: 10.3390/ma15093382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 05/03/2022] [Accepted: 05/06/2022] [Indexed: 02/04/2023]
Abstract
Flue-gas desulphurization (FGD) gypsum is a highly prevalent industrial by-product worldwide, which can be an excellent alternative to natural gypsum due to its high content of CaSO4·2H2O. The preparation of α-calcium sulfate hemihydrate is a high-value pathway for the efficient use of FGD gypsum. Here, a dynamic method, or an improved autoclaved process, was used to produce α-calcium sulfate hemihydrate from FGD gypsum. In this process, the attachment water of the mixture of FGD gypsum and crystal modifiers was approximately 18%, and the pH value was approximately 6.0. The mixture did not need to be pressed into bricks or made into slurry, and it was directly sent into the autoclave reactor for reaction. It was successfully applied to the practical production and application of FGD gypsum, citric acid gypsum and phosphogypsum. In this work, the compositions and morphology of the product at different stages of the reaction were examined and compared. In particular, single-crystal diffraction was used to produce the crystal structure of CaSO4·0.5H2O, and the results were as follows: a = 13.550(3); b = 13.855(3); c = 12.658(3); β = 117.79(3)°; space group C2. The preferential growth along the c-axis and the interaction mechanism between the carboxylate groups and the crystal were discussed throughout the analysis of the crystal structure.
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Affiliation(s)
- Ying Li
- School of Civil and Resource Engineering, University of Science and Technology Beijing, No. 30 Xueyuan Road, Haidian District, Beijing 100083, China; (W.N.); (S.Z.); (J.W.)
- Correspondence:
| | - Wen Ni
- School of Civil and Resource Engineering, University of Science and Technology Beijing, No. 30 Xueyuan Road, Haidian District, Beijing 100083, China; (W.N.); (S.Z.); (J.W.)
| | - Pengxuan Duan
- School of Materials Science and Engineering, Guilin University of Technology, Jian’gan Road 12#, Guilin 541004, China;
| | - Siqi Zhang
- School of Civil and Resource Engineering, University of Science and Technology Beijing, No. 30 Xueyuan Road, Haidian District, Beijing 100083, China; (W.N.); (S.Z.); (J.W.)
| | - Jiajia Wang
- School of Civil and Resource Engineering, University of Science and Technology Beijing, No. 30 Xueyuan Road, Haidian District, Beijing 100083, China; (W.N.); (S.Z.); (J.W.)
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11
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Wei Z, Deng Z. Research hotspots and trends of comprehensive utilization of phosphogypsum: Bibliometric analysis. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 2022; 242:106778. [PMID: 34847525 DOI: 10.1016/j.jenvrad.2021.106778] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Revised: 11/18/2021] [Accepted: 11/20/2021] [Indexed: 06/13/2023]
Abstract
Phosphogypsum is a by-product of the phosphate fertilizer industry. It is generally treated by stacking, which not only causes environmental pollution, but also wastes resources. Therefore, the harmless, comprehensive, and high-value utilization of phosphogypsum has attracted more and more scholars around the world. From the perspective of bibliometrics, this paper systematically and comprehensively describes the research progress, trends and hot spots of phosphogypsum resource utilization. This article is based on a scientific network database, and a total of 1067 articles from 1985 to 2020 were collected. Then, use VOSViewer software to perform co-occurrence, co-citation analysis and cluster analysis. The visual analysis results demonstrate that the research on the resource utilization of phosphogypsum shows the characteristics of rapid growth. The active countries are mainly China, Brazil, Spain and the United States. Four of the top 10 active organizations are from China. It systematically expounds the changes in research hotspots in this field at different stages and possible future research hotspots. Including the gradual attention to the preparation of phosphogypsum building materials, phosphogypsum adsorption materials, and radioactive elements in phosphogypsum; the extraction of rare earth elements from phosphogypsum; the use of phosphogypsum to prepare fertilizer or soil improvement. Research shows that phosphogypsum can be reasonably designed, transformed, and used in different fields.However, the radioactivity contained in phosphogypsum should be paid attention to because it has an impact on humans and the environment. We believe that this research provides a comprehensive and systematic overview for future research on phosphogypsum resource utilization.
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Affiliation(s)
- Zhongqi Wei
- College of Mining, Guizhou University, Guiyang, 550025, China.
| | - Zhengbin Deng
- College of Mining, Guizhou University, Guiyang, 550025, China; National & Local Joint Laboratory of Engineering for Effective Utilization of Regional Mineral Resources from Karst Areas, Guiyang, 550025, China; Guizhou Key Laboratory of Comprehensive Utilization of Non-metallic Mineral Resources, Guiyang, 550025, China.
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12
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Tanquero JG, Abdel‐Aal EA, Farinato RS, El‐Shall H, Moudgil BM. Inhibition of calcium sulphate hemihydrate crystallization under simulated conditions of phosphoric acid evaporation. CAN J CHEM ENG 2021. [DOI: 10.1002/cjce.24210] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Juan G. Tanquero
- Center for Particulate and Surfactant Systems (CPaSS) University of Florida (UF) Gainesville Florida USA
| | | | - Raymond S. Farinato
- Department of Earth and Environmental Engineering Columbia University New York New York USA
| | - Hassan El‐Shall
- Center for Particulate and Surfactant Systems (CPaSS) University of Florida (UF) Gainesville Florida USA
| | - Brij M. Moudgil
- Center for Particulate and Surfactant Systems (CPaSS) University of Florida (UF) Gainesville Florida USA
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13
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Sun X, Li Z, Wang X, Zhang G, Cui P, Shen H. Single-Crystal Regular Hexagonal Microplates of Two-Dimensional α-Calcium Sulfate Hemihydrate Preparation from Phosphogypsum in Na2SO4 Aqueous Solution. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c01555] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Xiangbin Sun
- School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Controllable Chemistry Reaction and Material Chemical Engineering, Hefei University of Technology, Tunxi Road 193, Hefei 230009, PR China
| | - Zheng Li
- School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Controllable Chemistry Reaction and Material Chemical Engineering, Hefei University of Technology, Tunxi Road 193, Hefei 230009, PR China
| | - Xianshun Wang
- School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Controllable Chemistry Reaction and Material Chemical Engineering, Hefei University of Technology, Tunxi Road 193, Hefei 230009, PR China
| | - Genlei Zhang
- School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Controllable Chemistry Reaction and Material Chemical Engineering, Hefei University of Technology, Tunxi Road 193, Hefei 230009, PR China
- School of Materials Science and Engineering, Hefei University of Technology, Tunxi Road 193, Hefei 230009, PR China
- Anhui Liuguo Chemical Co. Ltd, Tongling 244021, China
| | - Peng Cui
- School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Controllable Chemistry Reaction and Material Chemical Engineering, Hefei University of Technology, Tunxi Road 193, Hefei 230009, PR China
| | - Hao Shen
- Anhui Liuguo Chemical Co. Ltd, Tongling 244021, China
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14
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Zhu XN, Zhang LY, Dong SL, Kou WJ, Nie CC, Lyu XJ, Qiu J, Li L, Liu ZX, Wu P. Mechanical activation to enhance the natural floatability of waste printed circuit boards. WASTE MANAGEMENT (NEW YORK, N.Y.) 2020; 109:222-230. [PMID: 32416564 DOI: 10.1016/j.wasman.2020.05.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 04/10/2020] [Accepted: 05/06/2020] [Indexed: 06/11/2023]
Abstract
The metal in the waste printed circuit boards (WPCBs) is an excellent secondary metal resource. WPCBs were ground to dissociate, and impurities in the dissociated product were removed by gradient flotation to recover valuable metals in this study. The effects of crushing methods on size composition and dissociation state of the crushed products were studied. Then the gradient flotation experiment was designed to verify the natural floatability of ground materials. Grinding test shows that impact crushing has greater grinding fineness (-0.074 mm) than shear crushing, which is 42.14% and 26.18% respectively with 5 min grinding. The flotation test results illustrate that the natural floatability of impurities increases with the grinding fineness, that is, the yield of floats increases without flotation reagents. For impact crushing and shear crushing, the floats yields are 38.48% and 31.75% respectively, accompanied by 70.53% and 65.46% impurity removal for ground materials with 5 min grinding. Subsequently, 21.61% and 26.35% of impurities can be further removed with the aid of collector. Finally, the recovery of Cu in concentrate reaches 67.84% and 65.75%, respectively. FT-IR proves that the excellent floatability of particles is caused by the significant hydrophobic group. Mechanical grinding has been proved to have double effects of improving dissociation and natural floatability.
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Affiliation(s)
- Xiang-Nan Zhu
- College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao, Shandong 266590, China.
| | - Li-Ye Zhang
- College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao, Shandong 266590, China
| | - Shu-Ling Dong
- College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao, Shandong 266590, China
| | - Wen-Jia Kou
- College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao, Shandong 266590, China
| | - Chun-Chen Nie
- College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao, Shandong 266590, China
| | - Xian-Jun Lyu
- College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao, Shandong 266590, China
| | - Jun Qiu
- College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao, Shandong 266590, China
| | - Lin Li
- College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao, Shandong 266590, China
| | - Zhen-Xue Liu
- College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao, Shandong 266590, China.
| | - Peng Wu
- College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao, Shandong 266590, China.
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15
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Wang J, Li W, Zhou Z, Gao Z, Hu Y, Sun W. 1-Hydroxyethylidene-1,1-diphosphonic acid used as pH-dependent switch to depress and activate fluorite flotation I: Depressing behavior and mechanism. Chem Eng Sci 2020. [DOI: 10.1016/j.ces.2019.115369] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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16
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Mu X, Zhu G, Li X, Li S, Gong X, Li H, Sun G. Effects of Impurities on CaSO 4 Crystallization in the Ca(H 2PO 4) 2-H 2SO 4-H 3PO 4-H 2O System. ACS OMEGA 2019; 4:12702-12710. [PMID: 31460392 PMCID: PMC6682056 DOI: 10.1021/acsomega.9b01114] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Accepted: 07/02/2019] [Indexed: 06/10/2023]
Abstract
Wet-process phosphoric acid is a fundamental process in the fertilizer industry. The influence of impurities on crystallization kinetics of CaSO4 was investigated in the Ca(H2PO4)2-H2SO4-H3PO4-H2O system using a mixed suspension mixed product removal crystallizer. Effects of Si, Al, Fe, Mg, K, and Na on crystal morphology and structure were examined in the highly acidic system through scanning electron microscopy and high-resolution transmission electron microscopy. Results show that the increase of Mg, K, and Na content facilitates crystal growth. Si, Al, and Fe are beneficial to CaSO4 crystal growth at a certain concentration range. Impurities also affect the crystal morphology, and the addition of Si, Fe, and Na promotes the formation of needle-like crystals compared with other impurities. X-ray diffraction results show that the preferred crystal growth direction is (020), and the interplanar spacing of the crystals is affected by the element radius of the impurities.
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Affiliation(s)
- Xinru Mu
- School
of Chemistry and Chemical Engineering, Institute for Smart Materials
& Engineering, University of Jinan, 336 Nanxinzhuang West Road, Jinan 250022, P. R. China
| | - Ganyu Zhu
- Key
Laboratory of Green Process and Engineering, National Engineering
Laboratory for Hydrometallurgical Cleaner Production Technology, Institute
of Process Engineering, Chinese Academy
of Sciences, Beijing 100190, China
| | - Xu Li
- Yidu
Xingfa Chemical Company Limited, Yidu, Hubei 443311, China
| | - Shaopeng Li
- Key
Laboratory of Green Process and Engineering, National Engineering
Laboratory for Hydrometallurgical Cleaner Production Technology, Institute
of Process Engineering, Chinese Academy
of Sciences, Beijing 100190, China
| | - Xiaokang Gong
- Yidu
Xingfa Chemical Company Limited, Yidu, Hubei 443311, China
| | - Huiquan Li
- Key
Laboratory of Green Process and Engineering, National Engineering
Laboratory for Hydrometallurgical Cleaner Production Technology, Institute
of Process Engineering, Chinese Academy
of Sciences, Beijing 100190, China
- University
of Chinese Academy of Sciences, Beijing 100049, China
| | - Guoxin Sun
- School
of Chemistry and Chemical Engineering, Institute for Smart Materials
& Engineering, University of Jinan, 336 Nanxinzhuang West Road, Jinan 250022, P. R. China
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17
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Sun X, Zhang G, Cui P. Aspect ratio-controlled preparation of α-CaSO 4·0.5H 2O from phosphogypsum in potassium tartrate aqueous solution. RSC Adv 2019; 9:21601-21607. [PMID: 35518860 PMCID: PMC9066511 DOI: 10.1039/c9ra03569a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2019] [Accepted: 06/28/2019] [Indexed: 01/11/2023] Open
Abstract
In this study, a simple and efficient strategy is developed to synthesize rod-shaped α-CaSO4·0.5H2O crystals with tunable aspect ratio from industrial phosphogypsum only in potassium tartrate aqueous solution at a low temperature. Industrial phosphogypsum can be effectively converted into rod-shaped α-CaSO4·0.5H2O crystals with the assistance of potassium tartrate, and the aspect ratio of α-CaSO4·0.5H2O crystals gradually decreases from 52 : 1 to 1 : 1 with increasing the concentration of potassium tartrate. The formation process of the rod-shaped α-CaSO4·0.5H2O crystals in this system involves the dissolution of CaSO4·2H2O and nucleation of α-CaSO4·0.5H2O crystals. The tartrate ions from potassium tartrate in this system preferentially bind to (001) and (002) facets of α-CaSO4·0.5H2O crystals, inhibiting the growth of α-CaSO4·0.5H2O crystals along the c-axis and controlling its morphology and aspect ratio.
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Affiliation(s)
- Xiangbin Sun
- School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Controllable Chemistry Reaction and Material Chemical Engineering, Hefei University of Technology Tunxi Road 193 Hefei 230009 PR China
| | - Genlei Zhang
- School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Controllable Chemistry Reaction and Material Chemical Engineering, Hefei University of Technology Tunxi Road 193 Hefei 230009 PR China
- School of Materials Science and Engineering, Hefei University of Technology Tunxi Road 193 Hefei 230009 PR China
| | - Peng Cui
- School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Controllable Chemistry Reaction and Material Chemical Engineering, Hefei University of Technology Tunxi Road 193 Hefei 230009 PR China
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18
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Wang J, Fan S, Hou S, Chen R, Xiang L, Yang C. Effects of Cationic Polyacrylamide on Hydrothermal Formation of Ultralong α-CaSO 4
·0.5H 2
O Whiskers. CRYSTAL RESEARCH AND TECHNOLOGY 2019. [DOI: 10.1002/crat.201800224] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jing Wang
- School of Chemical and Material Engineering; Jiangnan University; Wuxi 214122 China
| | - Saiying Fan
- School of Chemical and Material Engineering; Jiangnan University; Wuxi 214122 China
| | - Sichao Hou
- Department of Chemical Engineering; Tsinghua University; Beijing 100084 China
| | - Ruosong Chen
- Department of Chemical Engineering; Tsinghua University; Beijing 100084 China
| | - Lan Xiang
- Department of Chemical Engineering; Tsinghua University; Beijing 100084 China
| | - Cheng Yang
- School of Chemical and Material Engineering; Jiangnan University; Wuxi 214122 China
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19
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Fu Y, Zhu Z, Yao J, Han H, Yin W, Yang B. Improved depression of talc in chalcopyrite flotation using a novel depressant combination of calcium ions and sodium lignosulfonate. Colloids Surf A Physicochem Eng Asp 2018. [DOI: 10.1016/j.colsurfa.2018.08.056] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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20
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Reverse Flotation Separation of Fluorite from Calcite: A Novel Reagent Scheme. MINERALS 2018. [DOI: 10.3390/min8080313] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Fluorite (CaF2), as an important strategic mineral source, is usually separated from calcite by the common froth flotation method, but this separation is still not selective enough. The development of a selective collector and/or depressant is the key to achieving high selective separation. 1-Hydroxyethylidene-1,1-diphosphonic acid (HEDP or H4L) is widely used as an environmentally friendly water treatment reagent due to its low cost and excellent anti-scaling performance in an aqueous solution. In this study, a novel reagent scheme was developed using HEDP as a fluorite depressant and sodium oleate (NaOL) as a calcite collector for the first time. When 3 × 10−5 mol/L of HEDP and 6 × 10−5 mol/L of NaOL were used at pH 6, the optimal selective separation for single minerals and mixed binary minerals was obtained. Zeta potential measurements indicated that HEDP possessed a stronger adsorption on fluorite than calcite, while NaOL did the opposite. This novel reagent scheme is of low cost, uses a small dosage, and is friendly to the environment, which makes it a promising reagent scheme for fluorite flotation in industrial application.
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21
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Selective Flotation of Cassiterite from Calcite with Salicylhydroxamic Acid Collector and Carboxymethyl Cellulose Depressant. MINERALS 2018. [DOI: 10.3390/min8080316] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Cassiterite is the most common and important tin-bearing mineral, and calcite, a primary gangue mineral is generally found in tin deposit. The flotation separation of cassiterite from calcite remains a challenge due to their similar response to traditional reagents. In cassiterite flotation, sodium oleate (NaOL) and sodium silicate (SS) have been widely used as a collector and a depressant, respectively. However, the low selectivity of NaOL and the large amount of SS required (which leads to serious problems in wastewater treatment) remain a difficult issue. In this study, a novel reagent scheme using lead nitrate as the activator, salicylhydroxamic acid (SHA) as the collector and carboxymethyl cellulose as the depressant was employed to improve the separation selectivity of cassiterite from calcite. Results of the flotation experiment using this new reagent scheme showed that compared with the previously reported scheme using benzohydroxamic acid (BHA) as the collector, the separation of cassiterite from calcite exhibited a higher selectivity and selectivity index (SI). The mechanism of the selective separation was investigated by zeta potential measurements, Fourier transform infrared and X-ray photoelectron spectroscopy analysis.
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