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| Ammonia Leaching of Zinc Extracted from Hemimorphite |
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Received:January 11, 2016
Revised:January 18, 2016
Accepted:January 19, 2016
Published Online:October 21, 2016
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| DOI： |
| KeyWord:hemimorphite; leaching with ammonia; kinetics |
| Author | Institution |
| Li Chengfu |
Yunnan Gold |
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| Abstract: |
| This article investigates the kinetics of zinc when hemimorphite leaching in the system of NH3-(NH4)2SO4. Besides discusses the influence by temperature and liquid to solid ratio to the leaching efficiency. The consequences show that: the best leaching temperature is 55 ℃ while the best leaching liquid to solid ratio is 20; the leaching process controlled by diffusion, the activation energy of which is 16.1 kJ/mol. |
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