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Separation of chalcopyrite and pyrite from a copper tailing by ammonium humate
Lu, Cuicui1,2; Wang, Yongliang1; Qian, Peng1; Liu, Ya1,2; Fu, Guoyan1,2; Ding, Jian1,2; Ye, Shufeng1; Chen, Yuanfa1
2018-09-01
Source PublicationCHINESE JOURNAL OF CHEMICAL ENGINEERING
ISSN1004-9541
Volume26Issue:9Pages:1814-1821
Abstract

Copper tailings constitute a large proportion of mine wastes. Some of the copper tailings can be recycled to recover valuable minerals. In this paper, a copper tailing was studied through the chemical analysis method, Xray diffraction and scanning electron microscope-energy dispersive spectrum. It turned out that chalcopyrite (Cu) and pyrite (S) were the main recoverable minerals in the tailing. In order to separate chalcopyrite from pyrite in low pulp pH, ammonium humate (AH) was singled out as the effective regulator. The depression mechanism of AH on the flotation of pyrite was proved by FTIR spectrum and XPS spectrum, demonstrating that there was a chemical adsorption between AH and pyrite. By Response Surface Methodology (RSM), the interaction between AH, pulp pH and iso-butyl ethionine (Z200) was discussed. It was illustrated that the optimal dosage of AH was 1678 g.t(-1) involving both the recovery of Cu and S. The point prediction by RSM and the closed-circuit flotation displayed that the qualified Cu concentrate and S concentrate could be obtained from the copper tailing. The study indicated that AH was a promising pyrite depressor in the low pulp pH from copper tailings. (C) 2018 The Chemical Industry and Engineering Society of China, and Chemical Industry Press. All rights reserved.

KeywordCopper Tailings Ammonium Humate Depression Response Surface Methodology
DOI10.1016/j.cjche.2018.02.014
Language英语
WOS KeywordAlkaline-medium ; Mine Tailings ; Flotation ; Depressants ; Xanthate ; Ore ; Activation ; Adsorption ; Recovery ; Systems
Funding ProjectNational Natural Science Foundation of China[51202249] ; National High Technology Research and Development Program of China[2011AA06A104] ; National Science & Technology Pillar Program during the 12th Five-year Plan Period[2012BAB08B04]
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
Funding OrganizationNational Natural Science Foundation of China ; National High Technology Research and Development Program of China ; National Science & Technology Pillar Program during the 12th Five-year Plan Period
WOS IDWOS:000447410900005
PublisherCHEMICAL INDUSTRY PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/26354
Collection中国科学院过程工程研究所
Corresponding AuthorYe, Shufeng
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Lu, Cuicui,Wang, Yongliang,Qian, Peng,et al. Separation of chalcopyrite and pyrite from a copper tailing by ammonium humate[J]. CHINESE JOURNAL OF CHEMICAL ENGINEERING,2018,26(9):1814-1821.
APA Lu, Cuicui.,Wang, Yongliang.,Qian, Peng.,Liu, Ya.,Fu, Guoyan.,...&Chen, Yuanfa.(2018).Separation of chalcopyrite and pyrite from a copper tailing by ammonium humate.CHINESE JOURNAL OF CHEMICAL ENGINEERING,26(9),1814-1821.
MLA Lu, Cuicui,et al."Separation of chalcopyrite and pyrite from a copper tailing by ammonium humate".CHINESE JOURNAL OF CHEMICAL ENGINEERING 26.9(2018):1814-1821.
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