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| The research development of pressure leaching on copper extraction |
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Received:February 14, 2017
Revised:February 20, 2017
Accepted:February 21, 2017
Published Online:August 22, 2017
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| DOI： |
| KeyWord:Copper;extraction, Chalcopyrite, Pressure;leaching, Research;development |
| Author | Institution |
| Wang Yu fang |
Beijing General Research Institute of Mining and Metallurgy |
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| Abstract: |
| Copper sulfide pressure leaching has the advantages of high reaction speed, and no sulfur dioxide discharged during the process, which is suit for small scale on-site treatment, especially adapt for the construction of the remote plants, or sulfuric acid supply difficultly ones, or low grade complex copper concentrate treatment. According to the operation system, the copper concentrate pressure leaching can be divided into two kinds: ammonia pressure leaching and acid pressure leaching. And the acid pressure leaching can be divided into high-temperature, medium-temperature and low-temperature pressure leaching three types according to the reaction temperature and pressure. And the typical processes and applications are introduced in detail in this paper, to enhance the understanding of the technology to readers. As the effective supplements to pyro-metallurgy, the pressure leaching can prompt technology advancement of the the copper metallurgy, and the development of the copper industry. |
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