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| Plant Practice of Gold-catching from Refractory Gold Concentrates by Pyrometallurgical Process in |
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Received:October 01, 2021
Revised:October 12, 2021
Accepted:October 13, 2021
Published Online:January 18, 2022
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| DOI：doi：10.3969/j.issn.1007-7545.2022.02.006 |
| KeyWord:refractory gold concentrate; Triple Consecutive Furnace; impurity distribution; ore matching; process control |
| Author | Institution |
| ZHANG Hong-bin |
国投金城冶金有限责任公司 |
| DU Wu-zhao |
国投金城冶金有限责任公司 |
| LI Lin-bo |
西安建筑科技大学 |
| CUI Ya-ru |
西安建筑科技大学 |
| ZHANG Fei-yu |
西安建筑科技大学 |
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| Abstract: |
| Refractory gold concentrate with high arsenic and antimony bearing was treated by oxygen enrichment bottom blowing gold-catching process in "triple consecutive furnace" to efficiently recover valuable metals. Distribution behavior and law of various impurity elements were summarized according to requirement of metal recovery rate and process control in pyrometallurgical process. Content of different impurity elements in ore blending was optimized, and grade of matte for different refractory gold concentrates was determined, in which the grade of matte in high arsenic ores was controlled at 65%, and the grade of matte in high lead ores was controlled at 72%. The overall removal rate of lead, zinc, arsenic, antimony, bismuth and nickel in refractory gold concentrate can reach 98% above. It can provide reference for green smelting and sustainable development of gold industry. |
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