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| Processing of? Refractory gold ores by Molten Chlorination |
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Received:April 18, 2016
Revised:April 21, 2016
Accepted:April 21, 2016
Published Online:December 15, 2016
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| DOI： |
| KeyWord:molten chlorination; refractory gold ores; volatile ratio; recovery |
| Author | Institution |
| zhaoyulong |
Beijing General Research Institute of Mining DdDd Metallurgy |
| yuanchaoxin |
Beijing General Research Institute of Mining ＆Metallurgy |
| guochihao |
Beijing General Research Institute of Mining ＆Metallurgy |
| xuxiaohui |
Beijing General Research Institute of Mining ＆Metallurgy |
| weiqijin |
Beijing General Research Institute of Mining ＆Metallurgy |
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| Abstract: |
| Abstract: This paper discusses about the processing of?refractory gold ores by molten chlorination. This method stems from the chlorination process, and combines with matte smelting technology, which can completely make the microgranular disseminated gold exposed from sulfide and gangue. This paper explores the effects of melting temperature, chlorinated time, the type and amount of chlorinating agent on volatile ratio of gold. The experimental results demonstrate that the volatile ratio of gold reaches 99.64% when refractory gold ores roasted with 8% CaCl2 at 1250 ℃ for 2 hours. The gold content in residual slag dropped to 0.16 g/t. At the same time, other metals also have high volatile ratio. |
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