PROCEDE POUR LA RECUPERATION DES VALEURS METALIQUES DES PIRITES COMPLEXES

摘要

The present invention refers to a process for the recovery of the metal values of complex pyrites with which in the first place grinding and concentration of the ore is carried out until there is obtained a mimimmum content of copper plus zinc plus lead of 12%, this concentrate being then subjected to a lixiviation in two stages, one sulphuric and another which is also acid but in a chloride medium.