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| Analysis on Influence Regularity of the Ammonia-Ammonium Leaching System on Leaching Efficiency of Copper |
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Received:November 14, 2011
Published Online:March 18, 2012
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| DOI：10.3969/j.issn.1005-7854.2011.02.0012 |
| KeyWord:high calcium and magnesium ;copper oxide ore；ammonia-ammonium leachling system；leachling |
| Author | Institution |
| MAO Ying-bo |
Faculty of Land Resource Engineering，Kunming University of Science and Technology, Kunming ,China |
| FANG Jianj-un |
Faculty of Land Resource Engineering，Kunming University of Science and Technology, Kunming ,China |
| WEN Ya |
Faculty of Land Resource Engineering，Kunming University of Science and Technology, Kunming ,China |
| ZHAO Wen-juan |
Faculty of Land Resource Engineering，Kunming University of Science and Technology, Kunming ,China |
| WANG Shan |
Faculty of Land Resource Engineering，Kunming University of Science and Technology, Kunming ,China |
| UN Dong-yang |
Faculty of Land Resource Engineering，Kunming University of Science and Technology, Kunming ,China |
| WEI Zhi-cong |
Faculty of Land Resource Engineering，Kunming University of Science and Technology, Kunming ,China |
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| Abstract: |
| In this paper, through a series of experiment studies about the different ammonia-ammonium coupling of leaching system for the effect of copper oxide ore leaching rate, a significant influence sequence of the different ammonia-ammonium coupling of leaching system on the leaching rate of copper is determined as following: ammonia-ammonium carbamate > ammonia-ammonium carbonate > ammonia-ammonium chloride > ammonia-ammonium fluoride > ammonia-ammonium bicarbonate > ammonia-ammonium sulfate. The ammonia-ammonium carbamate leaching system is adopted as the experiment study of high calcium and magnesium, low grade and argillaceous copper oxide ore in Xinjiang, and the copper leaching rate is as high as 85.25%. |
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