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He W, Li R, Yang Y, Zhang Y, Nie D. Kinetic and thermodynamic analysis on preparation of belite-calcium sulphoaluminate cement using electrolytic manganese residue and barium slag by TGA. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:95901-95916. [PMID: 37558917 DOI: 10.1007/s11356-023-29104-5] [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: 04/21/2023] [Accepted: 07/28/2023] [Indexed: 08/11/2023]
Abstract
Electrolytic manganese residue (EMR) is a solid filter residue obtained from manganese carbonate ore during the production of metal manganese. A potential avenue towards large-scale utilisation of EMR is its use in cement preparation. However, the preparation of cement materials using EMR requires high-temperature calcination. In this study, the thermal properties and pyrolysis kinetics of belite-calcium sulfoaluminate cement raw meal were systematically studied using a multiple-heating-rate method based on thermogravimetric analysis and a kinetic model. The kinetic and thermodynamic parameters was studied using non-isothermal Flynn-Wall-Ozawa (FWO), Kissinger-Akahira-Sunose (KAS), Friedman and Kissinger methods. The results showed that from 30 to 1300°C, the pyrolysis reaction of cement raw meal was mainly divided into four steps: the crystalline water removal from calcium sulphate dihydrate and bauxite, the ammonia nitrogen removal from ammonium salts and the calcium sulphate crystal transformation; the decomposition of calcium carbonate and carbon-containing organic matter; the sulphate and carbonate substance decomposition and the clinker mineral phase formation. The average activation energies calculated when using the non-isothermal FWO, KAS, Friedman and Kissinger methods were 244.49, 240.7, 239.24 and 380.60 kJ/mol and the average pre-exponential factors were 1.75 × 1020, 3.65 × 1020, 7.11 × 1021 and 1.55 × 1013 s-1, respectively. Herein, the pyrolysis kinetics of the cement raw meal was divided into two main stages: In stage 1 (α: 0.15-0.8, 524°C-754°C), the mechanism of P2/3 accelerated nucleation in the Mampel Power rule, and the reaction mechanism function was G(α)=α3/2. In stage 2 (α: 0.80-0.95, 754°C-1165°C), during the local conversion of α = 0.2-0.8, when α was <0.5, the chemical reaction mechanism of the R3 phase boundary was noted and the mechanism function was G(α) = 1 - (1-α)1/3; however, when α was >0.5, a random nucleation and subsequent growth mechanism of A6 was noted and the mechanism function was G(α) = [-ln(1 - α)]2/3.
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Affiliation(s)
- Weilong He
- School of Chemistry and Chemical Engineering, Guizhou University, Guiyang, 550025, Guizhou, China
- Office of Academic Affairs, Guizhou University of Engineering Science, Bijie, 551700, Guizhou, China
| | - Rui Li
- School of Chemistry and Chemical Engineering, Guizhou University, Guiyang, 550025, Guizhou, China
| | - Yanping Yang
- School of Chemistry and Chemical Engineering, Guizhou University, Guiyang, 550025, Guizhou, China
| | - Yu Zhang
- School of Chemistry and Chemical Engineering, Guizhou University, Guiyang, 550025, Guizhou, China.
| | - Dengpan Nie
- School of Chemical Engineering, Guizhou Minzu University, Guiyang, 550025, Guizhou, China
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Liu Y, Wang P, Chiara Dalconi M, Molinari S, Valentini L, Wang Y, Sun S, Chen Q, Artioli G. The sponge effect of phosphogypsum-based cemented paste backfill in the atmospheric carbon capture: roles of fluorides, phosphates, and alkalinity. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
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Wang C, Hu H, Chen M, Huang J, Shi Q, Zeng C, Deng Z, Zhang Q. Efficient stabilization of barium- and gypsum-bearing tailings by one-step dry ball milling — an ingenious inspiration. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2023]
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Gu H, Yang Y, Guo T, Xiao J, Gao Y, Wang N. Review on treatment and utilization of barium slag in China. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 325:116461. [PMID: 36242976 DOI: 10.1016/j.jenvman.2022.116461] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 10/02/2022] [Accepted: 10/04/2022] [Indexed: 06/16/2023]
Abstract
Barium slag (BS) is generated as a by-product waste during the production of barium salts from barite. A large amount of BS is discharged annually threating the ecological environment and restricting the development of the barium salts industry. In China, BS is classified as hazardous waste due to its corrosivity, and more importantly because of its extraction toxicity of barium. Soluble barium is toxic and can result in barium poisoning for environment and human beings. The current review presents a detailed summary on general characteristics, discharge and disposal status, harmless treatment pathways and comprehensive utilization of BS in China. BaO, SiO2, CaO, and SO3 occur as main chemical compositions in BS, especially BaO accounting approximately for 35-40%. The mineral compositions include unreacted barite, quartz, clay minerals, newly-formed phases from the side reactions such as BaCO3, BaSiO3 and BaSO3, and residual carbon. A special attention is given to the assessment of the harmless treatment methods for BS from hazardous waste to general waste, which will decrease its management costs. Precipitation and solidification of soluble barium is the common pathway for harmless treatment of BS, and the using of other industrial waste can realize cost-saving. Methods for comprehensive utilization of BS include recovery of barium and carbon, application in building materials, and using as adsorbents for wastewater treatment. In particular, we analyzed and discussed the advantages and disadvantages of these existing process routes, intending to promote potentials for comprehensive utilization of BS in the future.
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Affiliation(s)
- Hannian Gu
- Key Laboratory of High-temperature and High-pressure Study of the Earth's Interior, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China.
| | - Yuxin Yang
- Key Laboratory of High-temperature and High-pressure Study of the Earth's Interior, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Tengfei Guo
- Key Laboratory of High-temperature and High-pressure Study of the Earth's Interior, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jianhua Xiao
- Guiyang Baolan Environmental Protection Technology Co., Ltd., Guiyang, 550007, China
| | - Yushi Gao
- Guizhou Institute of Building Materials Scientific Research and Design, Guiyang, 550007, China
| | - Ning Wang
- Key Laboratory of High-temperature and High-pressure Study of the Earth's Interior, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China.
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Liang H, Guo P, Yang Y, Wang W, Sun Z. Environmental application of engineering magnesite slag for phosphate adsorption from wastewater. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:59502-59512. [PMID: 35381926 DOI: 10.1007/s11356-022-20029-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2022] [Accepted: 03/28/2022] [Indexed: 06/14/2023]
Abstract
Herein, magnesite slags (MS), which remain after sulfuric acid extraction from light burnt magnesite in the magnesite industry, were used as phosphate adsorbents in wastewater. The MS were calcined under 700 °C to enhance phosphate adsorption. The calcined magnesite slags (CMS) were characterized by nitrogen adsorption-desorption isotherm, X-ray diffraction, and scanning electron microscopy. A series of batch adsorption experiments were carried out to test the phosphate adsorption capacity of CMS. The results showed that the calcific treatment promoted the conversion from Mg, Ca, Fe, etc. compound to metal oxide of the MS. The generated metal oxide particles resulted in 237.4 mg/g increase in the phosphate adsorption capacity. The phosphate adsorption isotherm of CMS fitted the Langmuir model better, and the maximum adsorption capacity of CMS was 526 mg/g. The adsorption kinetics of phosphate on CMS can be described by the pseudo-second-order model. The phosphate removal efficiency was greater than 98% in 300 mg/L phosphate solution. Mechanism investigation results indicated that phosphate was adsorbed by CMS through MgO protonation, electrostatic attraction, Mg-P complexation, and ligand exchange. The results obtained in this work demonstrate that the CMS is a potential effective adsorbent for removal and reutilization phosphate from P-contaminated water, due to it can be employed as a fertilizer after phosphate adsorption.
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Affiliation(s)
- Hai Liang
- Liaoning Key Laboratory of Chemical Additive Synthesis and Separation, Yingkou Institute of Technology, 46 Bowen Road, Yingkou, 115014, China.
- College of Chemical Engineering, Dalian University of Technology, Dalian, 116024, China.
| | - Panliang Guo
- Liaoning Key Laboratory of Chemical Additive Synthesis and Separation, Yingkou Institute of Technology, 46 Bowen Road, Yingkou, 115014, China
| | - Yunhong Yang
- Yingkou Magnesite Chemical Ind Group Co., Ltd., Yingkou, 115100, China
| | - Wanting Wang
- Liaoning Key Laboratory of Chemical Additive Synthesis and Separation, Yingkou Institute of Technology, 46 Bowen Road, Yingkou, 115014, China
| | - Zhaonan Sun
- Liaoning Key Laboratory of Chemical Additive Synthesis and Separation, Yingkou Institute of Technology, 46 Bowen Road, Yingkou, 115014, China
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Deng Q, Luo Q, Li M, Tu J, Guo L, Wu L, Zhang T, Shi L, Zhang H, Dong F. Highly Efficient Removal of Congo Red from Aqueous Solution by Lime‐Preconditioned Phosphogypsum. ChemistrySelect 2022. [DOI: 10.1002/slct.202200139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Qiulin Deng
- Post-doctoral Scientific Research Station of Wengfu (Group) Co., Ltd. State Key Laboratory of Efficient Utilization for Low Grade Phosphate Rock and Its Associated Resources 3491 Baijin Road Guiyang 550016 P. R. China
- School of Materials Science and Engineering State Key Laboratory for Environment-friendly Energy Materials Southwest University of Science and Technology 59 Qinglong Road Mianyang 621010 P. R. China
| | - Qin Luo
- School of Materials Science and Engineering State Key Laboratory for Environment-friendly Energy Materials Southwest University of Science and Technology 59 Qinglong Road Mianyang 621010 P. R. China
| | - Ming Li
- School of Materials Science and Engineering State Key Laboratory for Environment-friendly Energy Materials Southwest University of Science and Technology 59 Qinglong Road Mianyang 621010 P. R. China
| | - Junhong Tu
- School of Materials Science and Engineering State Key Laboratory for Environment-friendly Energy Materials Southwest University of Science and Technology 59 Qinglong Road Mianyang 621010 P. R. China
| | - Liqing Guo
- School of Materials Science and Engineering State Key Laboratory for Environment-friendly Energy Materials Southwest University of Science and Technology 59 Qinglong Road Mianyang 621010 P. R. China
| | - Liangxian Wu
- School of Materials Science and Engineering State Key Laboratory for Environment-friendly Energy Materials Southwest University of Science and Technology 59 Qinglong Road Mianyang 621010 P. R. China
| | - Tao Zhang
- Post-doctoral Scientific Research Station of Wengfu (Group) Co., Ltd. State Key Laboratory of Efficient Utilization for Low Grade Phosphate Rock and Its Associated Resources 3491 Baijin Road Guiyang 550016 P. R. China
| | - Lianjun Shi
- Post-doctoral Scientific Research Station of Wengfu (Group) Co., Ltd. State Key Laboratory of Efficient Utilization for Low Grade Phosphate Rock and Its Associated Resources 3491 Baijin Road Guiyang 550016 P. R. China
| | - Hong Zhang
- Post-doctoral Scientific Research Station of Wengfu (Group) Co., Ltd. State Key Laboratory of Efficient Utilization for Low Grade Phosphate Rock and Its Associated Resources 3491 Baijin Road Guiyang 550016 P. R. China
| | - Faqin Dong
- School of Materials Science and Engineering State Key Laboratory for Environment-friendly Energy Materials Southwest University of Science and Technology 59 Qinglong Road Mianyang 621010 P. R. China
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Cui C, Xie YD, Niu JJ, Hu HL, Lin S. Poly(Amidoamine) Dendrimer Modified Superparamagnetic Nanoparticles as an Efficient Adsorbent for Cr(VI) Removal: Effect of High-Generation Dendrimer on Adsorption Performance. J Inorg Organomet Polym Mater 2022. [DOI: 10.1007/s10904-021-02222-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Sevgili İ, Dilmaç ÖF, Şimşek B. An environmentally sustainable way for effective water purification by adsorptive red mud cementitious composite cubes modified with bentonite and activated carbon. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119115] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Yang T, Wang N, Gu H, Guo T. Froth flotation separation of carbon from barium slag: Recycling of carbon and minimize the slag. WASTE MANAGEMENT (NEW YORK, N.Y.) 2021; 120:108-113. [PMID: 33290881 DOI: 10.1016/j.wasman.2020.11.022] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 10/31/2020] [Accepted: 11/18/2020] [Indexed: 06/12/2023]
Abstract
Barium slag is a kind of solid waste derived from the carbon reduction process of producing barium salt. Carbon is one of the main components in barium slag with a content of more than 10%. In this study, a barium slag was characterized using XRF, XRD and SEM-EDS, and froth flotation test was introduced to recover the carbon in the barium slag. In the process of froth flotation test, diesel was selected as a collector and terpenic oil was selected as a frother for carbon separation. The flotation influences of pulp pH, collector dosage, frother dosage and flotation time were investigated. The results showed that the obtained carbon concentrate had a carbon grade of 63.25% and its recovery was 82.70% under the conditions of pH 8.50, diesel 600 g/t, terpenic oil 500 g/t, and flotation time 5 min. SEM-EDS analysis results revealed that the flotation concentrate was coarse and its particle sizes had a homogeneous distribution. The findings of this research provide a new pathway for barium slag utilization. The carbon obtained from the flotation test in this study can be recycled as raw materials, while the reduction of the remaining tailings can be utilized as building material additives.
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Affiliation(s)
- Tingting Yang
- Key Laboratory of High-temperature and High-pressure Study of the Earth's Interior, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ning Wang
- Key Laboratory of High-temperature and High-pressure Study of the Earth's Interior, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China
| | - Hannian Gu
- Key Laboratory of High-temperature and High-pressure Study of the Earth's Interior, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Tengfei Guo
- Key Laboratory of High-temperature and High-pressure Study of the Earth's Interior, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China; University of Chinese Academy of Sciences, Beijing 100049, China
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