Leaching of Silver from Boorchi Ag-Pb Ore in Mongolia with  Acidic Thiourea Solution

	Leaching of Silver from Boorchi Ag-Pb Ore in Mongolia with Acidic Thiourea Solution
	Nyamdelger Shirchinnamjil; YANG Chao; FANG Zhaoheng
刊名	过程工程学报
	2008
卷号	8.0 期号:004 页码:725
关键词	硫脲化学品合成技术过程分析
ISSN号	1009-606X
英文摘要	A hydrometallurgical process to extract silver from the silver-lead ore in Boorchi, Mongolia by using thiourea leaching solution is studied in this work. Through the observation of optical and scanning electron microscopes, and energy spectral analysis, it is determined that 5 kinds of silver minerals exist in the ore, including argentite, Ag-tetrahedrite, Ag-Zn-Sb-tetrahedrite, freibergite and acanthite. The experimental results of direct thiourea leaching of the ore show that 56%-60% of silver is leached. The main reason for the low leaching rate is due to silver minerals enveloped in galena and other minerals, even though the ore is ground to the particle size of 75 μm. When the ore is pretreated with ammonium carbonate solution under oxidation, the experimental results of thiourea leaching show that the leaching rate of silver increases to near 75% with the pretreatment. Based on the leaching experiments, a principle hydrometallurgical technological route to extract silver from the Ag-Pb ore is proposed.
语种	英语
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/46170]
专题	中国科学院过程工程研究所
作者单位	中国科学院过程工程研究所
推荐引用方式 GB/T 7714	Nyamdelger Shirchinnamjil,YANG Chao,FANG Zhaoheng. Leaching of Silver from Boorchi Ag-Pb Ore in Mongolia with Acidic Thiourea Solution[J]. 过程工程学报,2008,8.0(004):725.
APA	Nyamdelger Shirchinnamjil,YANG Chao,&FANG Zhaoheng.(2008).Leaching of Silver from Boorchi Ag-Pb Ore in Mongolia with Acidic Thiourea Solution.过程工程学报,8.0(004),725.
MLA	Nyamdelger Shirchinnamjil,et al."Leaching of Silver from Boorchi Ag-Pb Ore in Mongolia with Acidic Thiourea Solution".过程工程学报 8.0.004(2008):725.