Ammonia Leaching Study on Carbonate Oxidised Copper Ores in Yunnan

Ke Jun Bi; Jian Jun Fang; Tai Guo Jiang; Guo Dong Li

doi:10.4028/www.scientific.net/AMM.723.644

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 723Ammonia Leaching Study on Carbonate Oxidised...

Ammonia Leaching Study on Carbonate Oxidised Copper Ores in Yunnan

Abstract:

The effects of oxidized copper ores which came from Yunnan province were carried out by using ammonialeaching methods in the laboratory.In order to seek the optimum leaching conditions under normal temperature and pressure,we conducted a series of validation experiments. Theoptimum conditions were obtained as follows: ammonia concentration 2.5mol/L, ammonium sulfateconcentration 2.5mol/L,grinding fineness about 80% -0.074mm, liquid-solid ratio 2.5:1and leaching time was 2.5h. Under these experimental conditions, the copper leaching rate could reach 69.91%.

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Periodical:

Applied Mechanics and Materials (Volume 723)

Pages:

644-647

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.723.644

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Online since:

January 2015

Authors:

Ke Jun Bi, Jian Jun Fang, Tai Guo Jiang, Guo Dong Li

Keywords:

Ammonia Leaching, Factors, Oxidised Copper Ores

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