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| Experimental Research of Produce Copper Sulfate from Copper Slag |
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Received:June 04, 2013
Revised:June 16, 2013
Accepted:June 17, 2013
Published Online:October 30, 2014
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| DOI： |
| KeyWord:zinc hydrometallurgy; copper slag; copper sulfate; comprehensive utilization |
| Author | Institution |
| WU Xu |
Kunming University of Science and Technology |
| WANG Shao-long |
Yunnan Chihong Zn Ge Company Limited |
| LEI Ting |
Kunming Metallurgy Collage |
| BAO Chong-jun |
Kunming Metallurgical Research Institute |
| HU Xin |
Kunming University of Science and Technology |
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| Abstract: |
| It produces a certain amounts of byproduct copper slag in zinc hydrometallurgy. If reasonable recycling, it can produces certain economic and environmental benefits. This study discussed the time, temperature, oxygen concentration, solid-liquid ratio, stirring speed and sulfuric acid concentration influence on leaching of copper slag, the leaching rate of copper can reach more than 92%. Use the process of evaporation and concentration-hot filtration-evaporation and concentration-cooling crystallization to deal with the lixivium. After 4 times hot water backwashing, the quality of crystallization come up to the requirement of the industrial level 1 of copper sulfate. In the whole process the total recovery rate of copper come up to 86.9%. |
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