Procedure to recover the silver contained in the ashes of testing of pirits and related minerals. (Machine-translation by Google Translate, not legally binding)

摘要

Procedure to recover the silver contained in the roasting ashes of pyrites and related minerals, characterized in that these are subjected to a treatment with solutions of soluble chlorides, slightly acidified with hydrochloric acid, in such a way that a solution containing the silver is obtained in the form of soluble complexes; this is divided into two streams: in one of them the silver is recovered, by precipitation and filtration, while the resulting solution is incorporated into the main one, to then precipitate and eliminate the calcium sulphate by the addition of calcium carbonate, so that the leaching solution is regenerated and in conditions for recirculation. (Machine-translation by Google Translate, not legally binding)