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Copper from Copper Smelting Slag by Oxidation Leaching

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Abstract:

In this paper, copper was recovered from copper smelting slag by oxidation-ammonia leaching under normal pressure. Ammonia persulfate was employed as oxidizing agent and ammonia as complexing. The results showed that the optimal parameters were as following: the mass ratio of liquid and solid was 4:1, the temperature was 35°C, the leaching time was 180 minutes, the amount of (NH4)2S2O8 was 0.4 times of the slag sample, the ammonia concentration was 11mol/L. Under the optimal conditions, recovery of copper was 81.7%.

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Applied Mechanics and Materials II View Preview

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Periodical:

Applied Mechanics and Materials (Volumes 477-478)

Pages:

1413-1418

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.477-478.1413

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Online since:

December 2013

Authors:

Mao Sheng Chen, Xin Ming Zhu, Zi Rong Han, Ping Ning, Yi Xing Ma

Keywords:

Copper, Copper Smelting Slag, Oxidation-Ammonia Leaching

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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