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| Copper Extraction Technology from Ammonia Leaching Solution of Oxidized Ore in Yunnan |
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| DOI：DOI：10.3969/j.issn.1007-7545.2011.07.001 |
| KeyWord:metallurgical technology; oxidation copper ore; solvent extraction; ammoniac leaching solution; McCabe-Thiele isotherm; split-circuit extraction |
| Author | Institution |
| MA Cai-wen |
昆明理工大学 国土资源工程学院，昆明 |
| ZHOU Qing-hua |
深圳市危险废物处理站有限公司 |
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| Abstract: |
| With the ammoniac leaching solution of copper oxidized ore in Yunnan as the pregnant solution, the process of the extraction-washing-stripping is investigated. The value changes of copper content in every product of two stages extraction and on stage strip are calculated by using the method of McCabe-Thiele Isotherm. With the technology of split-circuit extraction, the diluting of the returned raffinate can be avoided. Through the determination of ammonia content, it is proved that the volatile matter content of the ammonia and the water-expansion can be controlled. |
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