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Gold leaching with elemental sulfur in alkaline solutions under oxygen pressure
Alternative TitleTrans. Nonferrous Met. Soc. China
Fang, ZH; Shi, W
2003-02-01
Source PublicationTRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
ISSN1003-6326
Volume13Issue:1Pages:195-198
AbstractA gold leaching process by using oxidation products of elemental sulfur in alkaline solutions was proposed and investigated. A gold concentrate and a residue from an arsenic refractory gold concentrate by acidic oxidation leaching were tested. The residue contains 16.3% elemental sulfur and no more elemental sulfur was added in tests. For the concentrate elemental sulfur was added before leaching tests. The leaching ratio of gold depends mainly on the initial equivalent ratio of elemental sulfur to hydroxyl ions, the consumption of oxygen and the reaction temperature in the process. Analysis of the experimental results shows that thiosulfate is the majority complexing reagent for gold in the process. Over 90% gold was leached from the residue and 82%-87% from the concentrate by using this process.; A gold leaching process by using oxidation products of elemental sulfur in alkaline solutions was proposed and investigated. A gold concentrate and a residue from an arsenic refractory gold concentrate by acidic oxidation leaching were tested. The residue contains 16.3% elemental sulfur and no more elemental sulfur was added in tests. For the concentrate elemental sulfur was added before leaching tests. The leaching ratio of gold depends mainly on the initial equivalent ratio of elemental sulfur to hydroxyl ions, the consumption of oxygen and the reaction temperature in the process. Analysis of the experimental results shows that thiosulfate is the majority complexing reagent for gold in the process. Over 90% gold was leached from the residue and 82%-87% from the concentrate by using this process.
KeywordGold Leaching Elemental Sulfur Alkaline Solution Oxygen Pressure Thiosulfate
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
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Indexed BySCI
Language英语
WOS KeywordSILVER
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
WOS IDWOS:000181242400042
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Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/5294
Collection研究所(批量导入)
AffiliationChinese Acad Sci, Inst Proc Engn, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Fang, ZH,Shi, W. Gold leaching with elemental sulfur in alkaline solutions under oxygen pressure[J]. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,2003,13(1):195-198.
APA Fang, ZH,&Shi, W.(2003).Gold leaching with elemental sulfur in alkaline solutions under oxygen pressure.TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,13(1),195-198.
MLA Fang, ZH,et al."Gold leaching with elemental sulfur in alkaline solutions under oxygen pressure".TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA 13.1(2003):195-198.
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