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| Study on Reduction of Nickel Content in Flash Slag with Calcium Carbide |
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Received:October 26, 2019
Revised:November 12, 2019
Accepted:November 13, 2019
Published Online:January 16, 2020
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| DOI：doi：10.3969/j.issn.1007-7545.2020.02.005 |
| KeyWord:Nickel Flash Furnace; nickel content in slag; calcium carbide |
| Author | Institution |
| GAO Hongwei |
金川集团股份有限公司 |
| QI Hongbin |
金川集团股份有限公司 |
| ZHANG Wei |
金川集团股份有限公司 |
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| Abstract: |
| Flash smelting is one kind of strong oxidation smelting with high oxygen potential in reaction tower. It is inevitable to produce a large amount of Fe3O4, NiO and Cu2O, which will enter into slag which contains high content of valuable metals. Based on process of producing slag in Jinchuan Nickel Flash Furnace, nickel loss in slag is analyzed, and process to reduce nickel content in slag with calcium carbide is explored. Nickel content in slag drops by 0.03 percent point or ~11% after addition of calcium carbide. |
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