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Mineralogical and morphological factors affecting the separation of copper and arsenic in flash copper smelting slag flotation beneficiation process

文献类型：期刊论文

作者Zhou, Huihui1,2; Liu, Guijian1,2; Zhang, Liqun3; Zhou, Chuncai4
刊名JOURNAL OF HAZARDOUS MATERIALS
出版日期2021-01-05
卷号401页码:12
关键词Arsenic Copper recovery Copper slag Occurrence mode Chemical speciation
ISSN号0304-3894
DOI10.1016/j.jhazmat.2020.123293
通讯作者Zhou, Huihui(janezhh@mail.ustc.edu.cn) ; Liu, Guijian(lgj@ustc.edu.cn)
英文摘要Separating copper and arsenic has always been a major problem in the copper slag flotation process, which influences copper slag utilization and the environmental safety. A comparative study of flash smelling furnace (FSF) slag and its flotation products (concentrate and tailing) reveals the factors affecting the separation of copper and arsenic in the beneficiation process from the perspective of mineralogy and morphology. The elemental fractionation in the process shows a positive correlation of As, Cu and Cd and an obvious correlation between speciation transformation of copper and arsenic was observed. The occurrence of arsenic and copper in FSF slag correlate the key phases of arsenic copper alloys, accounted for 88.91 % of total arsenic-bearing phases and 32.28% of copper-bearing phases. Closely-embeded matte and copper-arsenic alloys incerease the difficulty of the separation suggesting the finer grinding is needed for slag. Arsenic is liberated and oxidized into arsenate compounds while the recombination of As-O and Cu-S happened in the process affecting the selectivity of copper and arsenic. Arsenic fixed in silicate minerals is discharged into tailing which suggested to induce and fix arsenic into silicate minerals can facilitate arsenic removal from concentrate. FSF slag and its flotation concnetrate show risks of some of some of HMs which should be cautiously transported, disposed, and utilized.
WOS关键词CHEMICAL SPECIATION ; SELECTIVE FLOTATION ; LEACHING BEHAVIOR ; REMOVAL ; ELEMENTS ; MINE ; EXTRACTION ; IMMOBILIZATION ; FRACTIONATION ; CHALCOPYRITE
资助项目major science and technology projects in Anhui province[201903a07020011]
WOS研究方向Engineering ; Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000581684900035
出版者ELSEVIER
资助机构major science and technology projects in Anhui province
源URL[http://ir.ieecas.cn/handle/361006/15836]  
专题地球环境研究所_黄土与第四纪地质国家重点实验室（2010~）
通讯作者Zhou, Huihui; Liu, Guijian
作者单位1.Univ Sci & Technol China, Sch Earth & Space Sci, CAS Key Lab Crust Mantle Mat & Environm, Hefei 230026, Peoples R China
2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710075, Shanxi, Peoples R China
3.Anhui Univ, Sch Resource & Environm Engn, Hefei 230601, Peoples R China
4.Hefei Univ Technol, Sch Resources & Environm Engn, Hefei 230009, Peoples R China
推荐引用方式
GB/T 7714		 Zhou, Huihui,Liu, Guijian,Zhang, Liqun,et al. Mineralogical and morphological factors affecting the separation of copper and arsenic in flash copper smelting slag flotation beneficiation process[J]. JOURNAL OF HAZARDOUS MATERIALS,2021,401:12.
APA Zhou, Huihui,Liu, Guijian,Zhang, Liqun,&Zhou, Chuncai.(2021).Mineralogical and morphological factors affecting the separation of copper and arsenic in flash copper smelting slag flotation beneficiation process.JOURNAL OF HAZARDOUS MATERIALS,401,12.
MLA Zhou, Huihui,et al."Mineralogical and morphological factors affecting the separation of copper and arsenic in flash copper smelting slag flotation beneficiation process".JOURNAL OF HAZARDOUS MATERIALS 401(2021):12.

入库方式： OAI收割

来源：地球环境研究所

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