Eliminación de la refractariedad de una mena de oro en matriz de arsenopirita mediante sulfato férrico
1992; Spanish National Research Council; Volume: 28; Issue: 4 Linguagem: Inglês
ISSN
1988-4222
AutoresN. Iglesias, I. Palencia, Francisco Carranza,
Tópico(s)Mineral Processing and Grinding
ResumoThe removal of the refractory nature of a gold bearing ore in arsenopyrite matrix is studied. Flotation concentrates were prepared and leached in ferric sulphate. It is established that the sulphur layer deposited on the mineral surface during the ferric leaching does not exert a significant influence on the rate of the reaction. The Ag + addition exerts a positive catalytic effect on the rate of the leaching. The ferric leaching treatment with Ag + as a catalyst eliminates the refractory nature of the arsenopyrite concentrate
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