Basic theory and optimization of gold containing antimony concentrate leaching by alkaline sulfide
文献类型：期刊论文
| 作者 | Wu, Hao1,2; Feng, Yali1; Li, Haoran2; Liao, Shengde1; Wang, Hongjun1 |
| 刊名 | PHYSICOCHEMICAL PROBLEMS OF MINERAL PROCESSING
 |
| 出版日期 | 2019 |
| 卷号 | 55期号:1页码:248-257 |
| 关键词 | antimony concentrate leaching process alkaline leaching kinetics |
| ISSN号 | 1643-1049 |
| DOI | 10.5277/ppmp18126 |
| 英文摘要 | As sodium sulfide is easily oxidized to polysulfide and thiosulfate which have a gold leaching effect, gold would dissolve in leaching solution when extracting stibium from gold containing antimony concentrate by alkaline sulfide. Through leaching test and kinetics analysis, the decomposition regularity of sodium sulfide and leaching rate were studied under different leaching conditions. The results indicated that the gold content in antimony concentrate was 28.41g/Mg, and the content of antimony and sulfur was 36.01% and 14.04%, respectively. The main metallic minerals were native gold, arsenopyrite, stibnite, and the gangue minerals were mainly quartz. Anodic polarization curve shows reduced iron powder can increase the peak potential of the oxidation of the leaching solution and it can effectively prevent the decomposition of sodium sulfide and the dissolution of gold. Optimized stibium-extraction efficiency was achieved under the following conditions: a concentration of sodium sulfide and sodium hydroxide at 110g/ dm(3) and 20g/dm(3), respectively; a ratio of iron powder to concentrate of 1:30; a ratio of liquid to solid of 5:1; agitation speed of 600rad/min; reaction temperature of 353.15K; and a reaction time of 3 h. Under the optimized conditions, high antimony recovery (97.35%) and low gold dissolution (1.32%) were achieved. |
| WOS关键词 | STIBNITE ; KINETICS ; DUST |
| 资助项目 | Major Science and Technology Program for Water Pollution Control and Treatment[2015ZX07205-003] ; China Ocean Mineral Resources Research & Development Program[DY125-15-T-08] |
| WOS研究方向 | Chemistry ; Mining & Mineral Processing |
| 语种 | 英语 |
| WOS记录号 | WOS:000456478200024 |
| 出版者 | OFICYNA WYDAWNICZA POLITECHNIKI WROCLAWSKIEJ |
| 资助机构 | Major Science and Technology Program for Water Pollution Control and Treatment ; China Ocean Mineral Resources Research & Development Program |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/27794]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Feng, Yali |
| 作者单位 | 1.Univ Sci & Technol Beijing, Sch Civil & Resource Engn, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Hao,Feng, Yali,Li, Haoran,et al. Basic theory and optimization of gold containing antimony concentrate leaching by alkaline sulfide[J]. PHYSICOCHEMICAL PROBLEMS OF MINERAL PROCESSING,2019,55(1):248-257. |
| APA | Wu, Hao,Feng, Yali,Li, Haoran,Liao, Shengde,&Wang, Hongjun.(2019).Basic theory and optimization of gold containing antimony concentrate leaching by alkaline sulfide.PHYSICOCHEMICAL PROBLEMS OF MINERAL PROCESSING,55(1),248-257. |
| MLA | Wu, Hao,et al."Basic theory and optimization of gold containing antimony concentrate leaching by alkaline sulfide".PHYSICOCHEMICAL PROBLEMS OF MINERAL PROCESSING 55.1(2019):248-257. |
入库方式： OAI收割
来源：过程工程研究所
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