Investigation of copper(I) sulphide leaching in oxidative hydrochloric acid solution

Metallurgical & Materials Engineering

article

Branislav Marković¹  Miroslav Sokić¹  Željko Kamberović²  Dragana Živković³  Nada Štrbac³  Vaso Manojlović¹ 

[1] Institute for Technology of Nuclear and Other Mineral Raw Materials;Faculty of Technology and Metallurgy, University of Belgrade;Technical Faculty, University of Belgrade

关键词: leaching;    copper (I) sulphide;    hydrochloric acid;    sodium chloride;   

DOI  :  10.30544/71

学科分类：医学（综合）

来源: Association of Metallurgical Engineers of Serbia

【 摘 要 】

Present work is focused on the copper (I) sulphide leaching with sodium chloride in hydrochloric acid solution and with introduction of gaseous oxygen. Chemical reactions of leaching and their thermodynamic probabilities are predicted based on the literature data and products which were formed during the process and the overall leaching reaction was defined. The influence of temperature and time on the leaching degree of copper was experimentally determined. The quantity of dissolved copper increases with the increase of both investigated parameters. Elemental sulphur was formed as the main leaching product, precipitated at the particle surfaces and chloride ions have a role to disrupt the creation of this passive layer.

【 授权许可】

CC BY