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| THE RESEARCH ON NEW PROCESSES OF SIDE-BLOWN IMPOVERISHMENT FOR COPPER CONVERTER SLAG |
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Received:October 10, 2011
Revised:June 12, 2012
Accepted:October 11, 2011
Published Online:July 30, 2012
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| DOI： |
| KeyWord:P-S converter converter slag depleted slag new processes |
| Author | Institution |
| HeYunlong |
Kunming University of Science and Technology |
| Shen Qianghua |
Kunming University of Science and Technology |
| Chen Wen |
Kunming University of Science and Technology |
| LiuYunliang |
Kunming University of Science and Technology |
| Wang Yong |
Kunming University of Science and Technology |
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| Abstract: |
| This paper puts forward the new process to deal with copper smelting slag by creating a weak reducing atmosphere through transforming the traditional P-S converter which has the function of jetting fuel into the chamber for thermal insulation and jetting solid reductant from tuyere into furnace hearth into reduction converter. The research results indicates that the process has the following advantages：low energy consumption, high copper recovery rate, thoroughly reduction of Fe3O4. Dealing with 50 tones copper containing 41% Fe3O4 smelting slag when the furnace temperature is 1250℃,the transmission rate of coal based reductant is 30Kg/min and Fe/ SiO2 containing in slag is 1.25, Fe3O4 containing in can be reduced to below 5%.The replication experiment indicates that disposing 50 tones copper containing 46% Fe3O4 smelting slag copper in the cast slag is 0.34% Fe3O4 containing is 3.55%,the recovery rate of copper is 89.4%. |
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