A Novel, Solvent-Free Mechanochemistry Approach for Gold Extraction from Anode Slime

doi:10.1021/acssuschemeng.9b01207

	A Novel, Solvent-Free Mechanochemistry Approach for Gold Extraction from Anode Slime
	Xiao, Li 1,2; Wang, Yongliang 1; Sun, Zhi 1; Qian, Peng 1; Han, Peiwei 1; Yu, Bo 1,2; Ye, Shufeng 1
刊名	ACS SUSTAINABLE CHEMISTRY & ENGINEERING
	2019-07-01
卷号	7 期号:13 页码:11415-11425
关键词	mechanochemistry anode slime gold conversion solvent-free selective recovery
ISSN号	2168-0485
DOI	10.1021/acssuschemeng.9b01207
英文摘要	Gold extraction from anode slime often results in severe pollution as well as high consumption of reagents. Herein, a novel strategy, that in situ generates oxidative chlorine by a mechanochemistry approach, was developed for gold extraction from anode slime for the first time. By conducting dry ball milling of the mixed anode slime, KMnO4, and NH4Cl, elemental gold in anode slime was efficiently converted into water-soluble AuCl3 and then separated from solids by simple water leaching. A high gold yield of 97.71% was achieved under optimal conditions of 0.15 g of NH4Cl, water content of 9.09%, mass ratio of 20, rotation speed of 700 rpm, and reaction time of 60 min. Furthermore, this approach achieved a gold yield of 78.82%, while yields of other coexisting metals were nearly negligible. Compared with the hydrometallurgical process, this approach exhibited great advantages for its nearly solvent-free process, excellent selectivity for gold, and environmental friendliness.
资助项目	Key Deployment Project of the Chinese Academy of Sciences[ZDRW-ZS-2018-1-2] ; Material Chemistry and Engineering Group, Institute of Process Engineering, Chinese Academy of Sciences
WOS关键词	RECOVERING PRECIOUS METALS ; WASTE ; THIOSULFATE ; GREEN ; COMPLEXES ; CYANIDE ; SILVER ; WATER
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Engineering
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000474474800042
资助机构	Key Deployment Project of the Chinese Academy of Sciences ; Material Chemistry and Engineering Group, Institute of Process Engineering, Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/30150]
专题	中国科学院过程工程研究所
通讯作者	Ye, Shufeng
作者单位	1.Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Huairou 101408, Peoples R China
推荐引用方式 GB/T 7714	Xiao, Li,Wang, Yongliang,Sun, Zhi,et al. A Novel, Solvent-Free Mechanochemistry Approach for Gold Extraction from Anode Slime[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2019,7(13):11415-11425.
APA	Xiao, Li.,Wang, Yongliang.,Sun, Zhi.,Qian, Peng.,Han, Peiwei.,...&Ye, Shufeng.(2019).A Novel, Solvent-Free Mechanochemistry Approach for Gold Extraction from Anode Slime.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,7(13),11415-11425.
MLA	Xiao, Li,et al."A Novel, Solvent-Free Mechanochemistry Approach for Gold Extraction from Anode Slime".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 7.13(2019):11415-11425.