Enhanced selective recovery of selenium from anode slime using MnO2 in dilute H2SO4 solution as oxidant

doi:10.1016/j.jclepro.2018.10.144

	Enhanced selective recovery of selenium from anode slime using MnO2 in dilute H2SO4 solution as oxidant
	Xiao, Li 1,2; Wang, Yongliang 1; Yu, Yang 3; Fu, Guoyan 1,2; Liu, Ya 1,2; Sun, Zhi 1; Ye, Shufeng 1
刊名	JOURNAL OF CLEANER PRODUCTION
	2019-02-01
卷号	209 页码:494-504
关键词	Selenium Copper Anode slime MnO2 Recovery
ISSN号	0959-6526
DOI	10.1016/j.jclepro.2018.10.144
英文摘要	As important rare raw material, Se and its compounds are widely used in metallurgy, glass manufacturing, chemicals and pigments, and electronics industry. However, current processes used for Se recovery are usually constrained by the serious pollution and high energy consumption. To dispose the issues in the process of Se recovery, this study developed an environmentally friendly process by using MnO2 in dilute H2SO4 as oxidant to efficiently recover Se and Cu. The effects of MnO2 dosage, H2SO4 concentrations, stirring speeds and temperature on the recovery were investigated. It was found that the major Se bearing phases in anode slime were elemental Se and Ag2Se. The oxidation capacity of MnO2 greatly increased with the H2SO4 concentration higher than 0.5 M and at a temperature above 60 degrees C. Optimum conditions derived from this study were 1.2 g MnO2 dosage, 1.0 M H2SO4, 600 rpm, and temperature at 80 degrees C, under which both the Se and Cu were recovered by 100% after 6 h. The cost-benefit analysis of the proposed process manifested that the profit of processing 1 t of anode slime was $ 82, and the sensitivity analysis showed that the price of Cu2Se and the Se recovery rate were the most important determinants of the profit. This research has great potential in Se recovery from anode slime. (C) 2018 Elsevier Ltd. All rights reserved.
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	X-RAY ; MANGANESE-DIOXIDE ; COPPER ; REDUCTION ; OXIDATION ; KINETICS ; SPECTROSCOPY ; EXTRACTION ; MECHANISM ; SULFUR
WOS研究方向	Science & Technology - Other Topics ; Engineering ; Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000457351900042
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/122111/27855]
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, Beijing 100049, Peoples R China 3.Jilin Jianzhu Univ, Sch Municipal & Environm Engn, Changchun 130117, Jilin, Peoples R China
推荐引用方式 GB/T 7714	Xiao, Li,Wang, Yongliang,Yu, Yang,et al. Enhanced selective recovery of selenium from anode slime using MnO2 in dilute H2SO4 solution as oxidant[J]. JOURNAL OF CLEANER PRODUCTION,2019,209:494-504.
APA	Xiao, Li.,Wang, Yongliang.,Yu, Yang.,Fu, Guoyan.,Liu, Ya.,...&Ye, Shufeng.(2019).Enhanced selective recovery of selenium from anode slime using MnO2 in dilute H2SO4 solution as oxidant.JOURNAL OF CLEANER PRODUCTION,209,494-504.
MLA	Xiao, Li,et al."Enhanced selective recovery of selenium from anode slime using MnO2 in dilute H2SO4 solution as oxidant".JOURNAL OF CLEANER PRODUCTION 209(2019):494-504.