Cupric and ferric chloride leach of metal sulphide-containing material

摘要

A method of leaching of metal sulphide-containing material is disclosed. The metal sulphides can be iron, copper, lead, silver, mercury and/or zinc. The leaching is effected by means of chloride-containing solutions through red-ox reaction. The metal sulphide-containing material is reacted with a solution which consists chiefly of cupric chloride and ferric chloride.