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| Study on Dilution of Copper Side Blowing Smelting Slag with Direct Current |
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Received:May 10, 2012
Revised:May 20, 2012
Accepted:May 21, 2012
Published Online:October 23, 2012
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| DOI：10.3969/j.issn.1007-7545.2012.11.006 |
| KeyWord:copper slag; dilution; direct current; ore-smelting electric furnace; recovery; oxygen enrichment side blowing smelting |
| Author | Institution |
| WEI Qi-jin |
北京矿冶研究总院 |
| YUAN Chao-xin |
北京矿冶研究总院 |
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| Abstract: |
| The water quenching copper slag from oxygen enrichment side blowing smelting process was diluted in laboratory through alternating current (AC) and direct current (DC) ore-smelting electric furnace. The results show that copper content in slag is reduced from 0.73% to 0.28% after 60 minutes dilution with bottom-cathode DC. The copper recovery is about 65%, increasing 10 percentage compared with that with AC. A variety of slag temperature between 1 160~1 350 ℃ has no obvious effect on copper recovery. With the dosage of pyrite concentrate of 10% of slag quantity, the copper content in slag will decrease to 0.24%, and the copper recovery is about 70%. The copper content in slag increases slowly with the increase of matte grade. |
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