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Liu C, Xu L, Deng J, Tian J, Wang D, Xue K, Zhang X, Wang Y, Fang J, Liu J. A review of flotation reagents for bastnäsite-(Ce) rare earth ore. Adv Colloid Interface Sci 2023; 321:103029. [PMID: 37866120 DOI: 10.1016/j.cis.2023.103029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 10/08/2023] [Accepted: 10/15/2023] [Indexed: 10/24/2023]
Abstract
Given the indispensability and immense value of rare earth elements for scientific and technological advancements in the 21st century, extracting high-quality rare earth resources from nature has become a global priority. Bastnäsite-(Ce) is one of the known rare earth minerals with high rare earth content and wide distribution, which occupies a pivotal position in human life and high-end production activities, making its efficient development and utilization crucial. In recent years, research on separating bastnäsite-(Ce) from gangue minerals has focused on the flotation process, with flotation reagents playing a critical role in achieving effective separation. This paper provides a detailed summary of current research on the behavior of bastnäsite-(Ce) flotation agents on minerals, their interaction with mineral surfaces during flotation separation, and outlines future prospects for further research.
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Affiliation(s)
- Chang Liu
- Key Laboratory of Separation and Processing of Symbiotic-Associated Mineral Resources in Non-ferrous Metal Industry, Engineering Technology Research Center for Comprehensive Utilization of Rare Earth - Rare Metal - Rare Scattered in Non-ferrous Metal Industry, Inner Mongolia Research Institute, School of Chemical & Environmental Engineering, China University of Mining & Technology (Beijing), Beijing, 100083, China; Key Laboratory of Solid Waste Treatment and Resource Recycle Ministry of Education, Southwest University of Science and Technology, Mianyang, Sichuan, PR China
| | - Longhua Xu
- Key Laboratory of Solid Waste Treatment and Resource Recycle Ministry of Education, Southwest University of Science and Technology, Mianyang, Sichuan, PR China.
| | - Jiushuai Deng
- Key Laboratory of Separation and Processing of Symbiotic-Associated Mineral Resources in Non-ferrous Metal Industry, Engineering Technology Research Center for Comprehensive Utilization of Rare Earth - Rare Metal - Rare Scattered in Non-ferrous Metal Industry, Inner Mongolia Research Institute, School of Chemical & Environmental Engineering, China University of Mining & Technology (Beijing), Beijing, 100083, China
| | - Jia Tian
- Key Laboratory of Solid Waste Treatment and Resource Recycle Ministry of Education, Southwest University of Science and Technology, Mianyang, Sichuan, PR China
| | - Donghui Wang
- Key Laboratory of Solid Waste Treatment and Resource Recycle Ministry of Education, Southwest University of Science and Technology, Mianyang, Sichuan, PR China; State Key Laboratory of Mineral Processing, Beijing 100160, China
| | - Kai Xue
- Key Laboratory of Solid Waste Treatment and Resource Recycle Ministry of Education, Southwest University of Science and Technology, Mianyang, Sichuan, PR China
| | - Xi Zhang
- Key Laboratory of Solid Waste Treatment and Resource Recycle Ministry of Education, Southwest University of Science and Technology, Mianyang, Sichuan, PR China
| | - Yan Wang
- Key Laboratory of Solid Waste Treatment and Resource Recycle Ministry of Education, Southwest University of Science and Technology, Mianyang, Sichuan, PR China
| | - Jinmei Fang
- Key Laboratory of Solid Waste Treatment and Resource Recycle Ministry of Education, Southwest University of Science and Technology, Mianyang, Sichuan, PR China
| | - Jiongtian Liu
- School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, China
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Yu X, Mao L, Xie H, Yao X, He G, Huang Z. Flotation Behavior and Adsorption Mechanism of Phenylpropyl Hydroxamic Acid As Collector Agent in Separation of Fluorite from Calcite. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:5936-5943. [PMID: 37062889 DOI: 10.1021/acs.langmuir.3c00584] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
The hydroxylamine method involves the synthesis of a new hydroxamic acid collector, i.e., phenylpropyl hydroxamic acid (PHA), from methyl cinnamic hydroxamic acid. Flotation test results show that PHA exhibits good selective collection ability. The adsorption mechanism of PHA is investigated using the zeta potential, Fourier transform infrared spectroscopy (FTIR), and X-ray photoelectron spectroscopy (XPS). The results show that PHA formed a new Ca-O bond with Ca2+ on the fluorite surface via chemical adsorption. A new five-element chelated hydroxamate group may have formed in Ca on the fluorite surface. The PHA selectivity is fully explained via density functional theory (DFT) calculations, and an adsorption model is established.
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Affiliation(s)
- Xinyang Yu
- Jiangxi Provincial Key Laboratory of Mining Engineering, Ganzhou, Jiangxi 341000, China
- School of Resource and Environment Engineering, Jiangxi University of Science and Technology, Ganzhou, Jiangxi 341000, China
| | - Linghan Mao
- Jiangxi Provincial Key Laboratory of Mining Engineering, Ganzhou, Jiangxi 341000, China
- School of Resource and Environment Engineering, Jiangxi University of Science and Technology, Ganzhou, Jiangxi 341000, China
| | - Honghui Xie
- Jiangxi Provincial Key Laboratory of Mining Engineering, Ganzhou, Jiangxi 341000, China
- School of Resource and Environment Engineering, Jiangxi University of Science and Technology, Ganzhou, Jiangxi 341000, China
| | - Xiang Yao
- Jiangxi Provincial Key Laboratory of Mining Engineering, Ganzhou, Jiangxi 341000, China
- School of Resource and Environment Engineering, Jiangxi University of Science and Technology, Ganzhou, Jiangxi 341000, China
| | - Guichun He
- Jiangxi Provincial Key Laboratory of Mining Engineering, Ganzhou, Jiangxi 341000, China
- School of Resource and Environment Engineering, Jiangxi University of Science and Technology, Ganzhou, Jiangxi 341000, China
| | - Zhiqiang Huang
- Jiangxi Provincial Key Laboratory of Mining Engineering, Ganzhou, Jiangxi 341000, China
- School of Resource and Environment Engineering, Jiangxi University of Science and Technology, Ganzhou, Jiangxi 341000, China
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Shi D, Li W, Han Y. Fluorite flotation separation from bastnaesite via an eco-friendly polymer as a depressant and insight into its mechanism of adsorption. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2023.121368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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Chen Y, Liu H, Xia M, Cai M, Nie Z, Gao J. Green multifunctional PVA composite hydrogel-membrane for the efficient purification of emulsified oil wastewater containing Pb 2+ ions. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 856:159271. [PMID: 36209877 DOI: 10.1016/j.scitotenv.2022.159271] [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: 07/20/2022] [Revised: 10/02/2022] [Accepted: 10/02/2022] [Indexed: 06/16/2023]
Abstract
To date, most existing engineering materials have difficulty simultaneously separating oil/water and removing heavy metals from complex oily wastewater. In response to this challenge, a novel multifunctional composite hydrogel membrane (named PVA-CS-LDHs) was fabricated by incorporating chitosan (CS) and nanohydrotalcite (LDHs) into a polyvinyl alcohol (PVA) hydrogel. This material was developed using an easy yet versatile strategy of freezing and salting-out, which can enable the formation of a PVA-CS-LDH hydrogel membrane in one step and endow the PVA-CS-LDHs with high strength, excellent stretchability, favourable shape recoverability, and an ideal 3D microstructure. The PVA-CS-LDH membrane can purify emulsified oil and metal ions simultaneously with a separation efficiency of 99.89 % for emulsified oil and a removal efficiency of 97.44 % for Pb2+ ions. Additionally, the high-efficiency, multifunctional, high-antifouling and eco-friendly properties of the PVA-CS-LDH membrane make it a promising hydrogel material for both emulsified oil separation and heavy metal ion removal. Thus, this material provides critical application potential that can address scientific and technological challenges in complex oily wastewater purification.
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Affiliation(s)
- Yan Chen
- School of Naval Architecture and Maritime, Zhejiang Ocean University, Zhoushan 316022, China.
| | - Hong Liu
- School of Naval Architecture and Maritime, Zhejiang Ocean University, Zhoushan 316022, China
| | - Mengsheng Xia
- School of Naval Architecture and Maritime, Zhejiang Ocean University, Zhoushan 316022, China
| | - Miaomiao Cai
- School of Naval Architecture and Maritime, Zhejiang Ocean University, Zhoushan 316022, China
| | - Zeguang Nie
- School of Naval Architecture and Maritime, Zhejiang Ocean University, Zhoushan 316022, China
| | - Junkai Gao
- School of Naval Architecture and Maritime, Zhejiang Ocean University, Zhoushan 316022, China.
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Yu J, Liu S, Cheng C, Xiong S, Liu G. The effect mechanism of calcite or quartz particles towards bastnaesite flotation with octyl hydroxamic acid. Chem Eng Sci 2022. [DOI: 10.1016/j.ces.2022.118391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Qi J, Zhao G, Liu S, Chen W, Liu G. Strengthening flotation enrichment of Pb(Ⅱ)-activated scheelite with N-[(3-hydroxyamino)-propoxy]-N-hexyl dithiocarbamate. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.07.024] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Guo Z, Tian M, Qian G, Zhou Y, Gao Z, Sun W. Flotation separation of bastnaesite and fluorite using styrylphosphonic acid and cinnamohydroxamic acid as collectors. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Interaction mechanism of 2-hydroxy-3-naphthyl hydroxamic acid and 1-hydroxy-2-naphthyl hydroxamic acid in the flotation separation of bastnaesite/fluorite: Experiments and first-principles calculations. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.120307] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Uncovering the hydrophobic mechanism of a novel dithiocarbamate-hydroxamate surfactant towards galena. Chem Eng Sci 2021. [DOI: 10.1016/j.ces.2021.116765] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Lu Y, Wu K, Wang S, Cao Z, Ma X, Zhong H. Structural modification of hydroxamic acid collectors to enhance the flotation performance of malachite and associated mechanism. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117959] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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A comparative investigation into floatability of bastnaesite with three di/trialkyl phosphate surfactants. J RARE EARTH 2021. [DOI: 10.1016/j.jre.2020.09.024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Sun Q, Wang S, Ma X, Zhong H. Desulfurization in high-sulfur bauxite with a novel thioether-containing hydroxamic acid: Flotation behavior and separation mechanism. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119147] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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Cen P, Bian X, Wu W, Li B. A sustainable green technology for separation and simultaneous recovery of rare earth elements and fluorine in bastnaesite concentrates. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.118380] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Zhu X, Zhu L, Li H, Xue J, Ma C, Yin Y, Qiao X, Sun D, Xue Q. Multifunctional charged hydrogel nanofibrous membranes for metal ions contained emulsified oily wastewater purification. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2020.118950] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Investigation on flotation separation of bastnaesite from calcite and barite with a novel surfactant: Octylamino-bis-(butanohydroxamic acid). Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.117792] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Fan H, Tan W, Liu G. 1-Hydroxydodecylidene-1,1-diphosphonic acid flotation of bastnäsite: Performance and mechanism. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2020.125623] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Flotation separation of bastnaesite from calcite using novel octylmalon dihydroxamic acid as collector. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113484] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Qi J, Liu G, Dong Y. Probing the hydrophobic mechanism of N-[(3-hydroxyamino)-propoxy]-N-octyl dithiocarbamate toward bastnaesite flotation by in situ AFM, FTIR and XPS. J Colloid Interface Sci 2020; 572:179-189. [PMID: 32240791 DOI: 10.1016/j.jcis.2020.03.080] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 03/16/2020] [Accepted: 03/22/2020] [Indexed: 11/20/2022]
Abstract
HYPOTHESIS Both hydroxamate and dithiocarbamate groups exhibit a unique bonding characteristic toward rare earth ions. A hydroxamic acid surfactant containing a dithiocarbamate group should possess a specific affinity to hydrophobize bastnaesite [(Ce, La)CO3F] flotation. EXPERIMENTS N-[(3-hydroxyamino)-propoxy]-N-octyl dithiocarbamate (OAHD) was synthesized, and its flotation mechanism toward bastnaesite was investigated by in situ AFM, FTIR, XPS, micro-flotation and contact angle. FINDINGS In situ AFM clearly observed that OAHD aggregated on bastnaesite surface, which improved the contact angle and surface hydrophobicity of bastnaesite. FTIR spectra and XPS recommended that OAHD's dithiocarbamate and hydroxamate groups co-anchored on bastnaesite surface through strong chemisorption, which strengthened the bonding affinity of bastnaesite toward OAHD. UV spectra showed that both dithiocarbamate and hydroxamate groups exhibited weak affinity toward Ca2+ ions, which benefited OAHD's selective flotation separation of bastnaesite from calcite. The co-adsorption and special hydrophobic structure improved OAHD's flotation performance. As a result, OAHD returned higher flotation selectivity for bastnaesite than OHA (n-octyl hydroxamic acid) which chemisorbed on bastnaesite surface only through the hydroxamate group and used the heptyl as hydrophobic group.
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Affiliation(s)
- Jing Qi
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Guangyi Liu
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China.
| | - Yan Dong
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
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