Oxidation and hydrothermal separation of metal chlorides for the separation of metals and hydrochloric acids.

摘要

The invention refers to a method for the oxidation and decomposition of metal chlorides, so as to effectively and efficiently separate iron and aluminum from precious metals such as copper and alumina. First of all, oxidation, especially iron oxidation, occurs in an electrolytic reactor, where iron is oxidized to gas. In the second way, the oxidation solution is treated in a hydrolysis reactor,Among them, decomposable trivalent chlorides form oxides, while ectopic METHYL CHLORIDES form core chlorine. The latter can be dissolved in dilute hydrochloric acid and can be selectively regenerated from the liquid to produce a clean separation. Hydrogen chloride is recovered from hydrogen reactors.