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| 难浸金矿FeS2-FeAsS-KMnO4-H2O系的E-pH研究 |
| E-pH Study of FeS2-FeAsS-KMnO4-H2O System of Refractory Gold |
| Received:October 23, 2013 |
| DOI： |
| 中文关键词: 有色金属冶金 E-pH图 难浸金矿 高锰酸钾 预处理 |
| 英文关键词: non-ferrous metallurgy E-pH figure refractory gold ore potassium permanganate pretreatment |
| 基金项目:贵州省工业攻关项目(黔科合GY字[2009] 3055)。 |
| Author Name | Affiliation | E-mail | | ZHOU Jiao | School of Materials and Metallurgy, Guizhou University, Guiyang 550025, China | | | JIANG Zhonggang | Guizhou Zijin Mining Co.Ltd., Zhenfeng 562200, Guizhou, China | | | LIU Hualong | Zhongdiantou of Guizhou Zunyi Industrial Development Co.Ltd., Wuchuan 564300, Guizhou, China | | | TANG Daowen | School of Materials and Metallurgy, Guizhou University, Guiyang 550025, China | tangdaowen@sina.com | | LIU Xianchao | School of Materials and Metallurgy, Guizhou University, Guiyang 550025, China | | | YAN Pu | School of Materials and Metallurgy, Guizhou University, Guiyang 550025, China | |
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| 中文摘要: |
| 通过热力学计算绘制了298.15 K条件下FeS2-FeAsS-KMnO4-H2O系的E-pH图，找出了较理想的KMnO4氧化FeS2和FeAsS的电位和pH预处理条件。实验表明，经高锰酸钾预处理后，包裹金的黄铁矿和毒砂被打开，这一结果为难浸金矿氧化预处理提供重要的理论参考。 |
| 英文摘要: |
| The E-pH diagram of FeS2-FeAsS-KMnO4-H2O system in 298.15 K was drawn through thermodynamic calculations. The ideal pretreatment condition for pH and electric potential were found for KMnO4 oxidation FeS2 and FeAsS from the E-pH diagram. The result showed that the pyrite and arsenopyrite wrapped gold is opened through potassium permanganate pretreatment. This result may provide some theoretical criterion for oxidation pretreatment of refractory gold. |
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