Dissolution of pyrite particles by chemical oxidation and bioleaching
文献类型：会议论文
| 作者 | Wu, Zhi2; Zhong, Shuiping1,2; Huang, Zhongsheng2; Ruan, Renman1; Wu, Zengling2; Zou, Gang2 |
| 出版日期 | 1905-07-05 |
| 会议日期 | December 15, 2012 - December 16, 2012 |
| 会议地点 | Kunming, China |
| 关键词 | Sulfur compounds - Oxidation - Reaction intermediates - Dissolution - Bioleaching |
| 卷号 | 634-638 |
| 期号 | 1 |
| DOI | 10.4028/www.scientific.net/AMR.634-638.3059 |
| 页码 | 3059-3064 |
| 英文摘要 | Dissolution of pyrite by chemical oxidation and bioleaching were studied with using short-term batch experiments. The results show that the rate of oxidative dissolution of pyrite increases with the increasing concentration of ferric in ferric sulfate solutions. With the corresponding in the bioleaching, the leaching rate of pyrite is markedly affected by the Eh of the solution. The ferric/ferrous ratio controls the relative rate of the oxidation reactions involved in the process. Additionally, the leaching rate of pyrite is controlled by the pH. The phase analysis of products indicated that S2- 2 oxidation can produce S0 and SO2- 4 under these conditions. On the basis of predecessors and using these species,the simplest expected oxidation mechanism is S2O2- 3 regarded as the intermediate mechanism during the oxidation process. 漏 (2013) Trans Tech Publications, Switzerland. |
| 资助机构 | Trans Tech Publications, P.O. Box 1254, Clausthal-Zellerfeld, D-38670, Germany |
| 会议录 | 2012 2nd International Conference on Chemical, Material and Metallurgical Engineering, ICCMME 2012
 |
| 学科主题 | Pyrites |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/59414]  |
| 作者单位 | 1.Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China 2.Zijin Research Institute of Mining and Metallurgy, National Key Laboratory of Comprehensive Utilization of Low-Grade Refractory Gold Ores, Shanghang 364200, China |
| 推荐引用方式 GB/T 7714 | Wu, Zhi,Zhong, Shuiping,Huang, Zhongsheng,et al. Dissolution of pyrite particles by chemical oxidation and bioleaching[C]. 见:. Kunming, China. December 15, 2012 - December 16, 2012. |
入库方式： OAI收割
来源：过程工程研究所
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