método de recuperação de metais nobres a partir de matérias-primas minerais.

摘要

The invention relates to methods of precious metals recovery and may be applied to the recovery of precious metals from mineral raw materials containing chlorides of alkali and earth metals, e.g. slimes of potassium production. The method includes the following: excessive chlorides and water are separated from the slimes containing precious metals and chlorides of alkali and earth metals, after which the slimes are forwarded to drying and roasting at the temperature of 850-950° C., and then the cider is leached by diluted solution of hydrochloric acid. The precious metals are recovered from the produced pulp by sorption with the help of resin (e.g. AM-2B).