Selective Separation Recovery of Copper and Arsenic from the Leaching Solution of Copper Soot

被引：3

作者：

Yang, Zhizhao ^{[1
]}

Zhang, Yongbing ^{[1
]}

Zhou, Hepeng ^{[1
,2
]}

Luo, Xianping ^{[1
,2
]}

Tang, Xuekun ^{[1
]}

Liu, Zishuai ^{[1
]}

机构：

[1] Jiangxi Univ Sci & Technol, Jiangxi Prov Key Lab Min & Met Environm Pollut Con, Ganzhou 341000, Peoples R China

[2] Jiangxi Univ Sci & Technol, Minist Educ, Engn Res Ctr High Efficiency Dev & Applicat Techno, Ganzhou 341000, Peoples R China

来源：

METALS | 2022年 / 12卷 / 11期

关键词：

copper; arsenic; leaching solution; separation recovery; sulfide precipitant; WASTE; ADSORPTION; REMOVAL; WATER; PH;

D O I：

10.3390/met12111983

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Through the main chemical reaction of metal ions and S2-, a new type of sulfide precipitant was first prepared and used to realize the selective separation recovery of copper and arsenic from the leaching solution of copper soot. It is proven by experimental results that the prepared sulfide precipitant could realize the efficient separation recovery of copper and arsenic. Indeed, the copper sulfide slag with Cu grade of about 47% and arsenic trisulfide slag with As operation recovery of about 98% could be obtained. The results of chemical reaction energy calculation analysis and SEM images analysis illustrate that the selective separation recovery of copper and arsenic mainly depended on the chemical reactions of sulfide precipitation. The ions of S2- and HS- produced by the prepared sulfide precipitant could react with Cu2+ and arsenic components to form CuS and As2S, respectively, in the copper and arsenic recovery procedure. In addition, the smaller solubility of CuS and the lower rate of S2- engendered by the sulfide precipitant were key to achieving the efficient separation and recovery of copper and arsenic.

引用

页数：11