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| Production Debugging Summary of Copper and Cobalt Resource Comprehensive Utilization in Congo (DRC) |
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Received:February 26, 2020
Revised:March 14, 2020
Accepted:March 17, 2020
Published Online:June 20, 2020
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| DOI：doi：10.3969/j.issn.1007-7545.2020.07.005 |
| KeyWord:refractory copper-cobalt ore; fine mud; comprehensive utilization; reach the production standard; comprehensive benefits |
| Author | Institution |
| ZHANG Xingxun |
紫金矿业集团股份有限公司 福建 中国 |
| KANG Jincheng |
紫金矿业集团股份有限公司 福建 中国 |
| Tan Xi-fa |
紫金矿业集团股份有限公司 福建 中国 |
| ZHANG Rifu |
紫金矿业集团股份有限公司 福建 中国 |
| YE Zhiyong |
紫金矿业集团股份有限公司 福建 中国 |
| ZHANG Wenbin |
紫金矿业集团股份有限公司 福建 中国 |
| LUO Sheng |
紫金矿业集团股份有限公司 福建 中国 |
| XIE Hongzhen |
紫金矿业集团股份有限公司 福建 中国 |
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| Abstract: |
| Raw materials of comprehensive recovery and utilization of a copper and cobalt resource in Congo (DRC) are composed of refractory copper and cobalt ore, concentrate of cyclones grading fine mud, flotation low-grade copper oxide concentrate, and copper flotation tailings re-magnetic separation concentrate. The designed scale of project is 3 500 t/d, with an annual output of cathode copper of 50 kt and cobalt hydroxide of 11 236 t (cobalt metal 3 kt). This project started on March 24, 2018. In September 2019, copper recovery rate and copper yield of project reached the design standard. Monthly copper yield is 4 250.47 t and copper recovery rate is 90.27%. Main technical indexes such as consumption of sulfuric acid, sodium pyrosulfite, flocculant, and current efficiency are also better than the design. From September to December, cumulative comprehensive cost of one ton of copper is $2 983.13 and cash cost is $2 218.77. Combined cost of one ton of cobalt is $13 442.57 and cash cost is $10 041.79. |
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