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| Study on Preparation of Copper Sulfate from Copper Slag with Oxygen Pressure Acid Leaching Process |
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Received:January 30, 2013
Revised:February 04, 2013
Accepted:February 05, 2013
Published Online:July 18, 2013
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| DOI：10.3969/j.issn.1007-7545.2013.08.015 |
| KeyWord:copper slag; oxygen pressure acid leaching; copper sulfate pentahydrate; cooling and crystallization; comprehensive recovery |
| Author | Institution |
| pengjianrong |
昆明冶金研究院 |
| Lihuairen |
昆明冶金研究院 |
| Xietianjian |
昆明冶金研究院 |
| Zhanghouwen |
云南驰宏锌锗股份有限公司 |
| WU Hong-lin |
云南驰宏锌锗股份有限公司 |
| ZOU Li-ming |
云南驰宏锌锗股份有限公司 |
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| Abstract: |
| The preparation of copper sulfate from copper slag with oxygen pressure acid leaching process was studied. The results show that the leaching rate of copper is above 92% under the conditions including pressure of 0.2 MPa, temperature of 80 ℃, initial sulfuric acid concentration of 10% and leaching time of 2 h. The crystallized copper sulfate can be produced from lixivium by direct cooling and crystallization process without evaporation and concentration. This process has the advantages of low energy consumption and no production of waste water. |
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