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Extraction of copper@ from sulphide copper ore concentrate - using a chloride assisted process to prevent oxidn. of the sulphide to acid.
Extraction of copper@ from sulphide copper ore concentrate - using a chloride assisted process to prevent oxidn. of the sulphide to acid.
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机译：从硫化铜精矿中提取铜-采用氯化物辅助工艺防止氧化。硫化物变成酸。
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摘要
Extraction of Cu from sulphide ore or concentrate by subjecting the ore to pressure oxidn. and an acidic chloride soln., giving a filtrate and an insoluble copper sulphate salt. The pressure oxidn. is conducted in the presence of bisulphate or sulphate ions, from either sulphuric acid or a metal sulphate, which hydrolyses in the acidic soln. The amt. of sulphate or bisulphate ions is at least the stoichiometric amt. to produce a basic copper sulphate salt, less the amt. of sulphate generated during the pressure oxidn.
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