EXTRACTION OF METAL IN SULPHIDE FORM BY LEACHING ORE WITH A LEACH RATE ACCELERANT PRESENT IN THE CO-PRODUCT SOLUTION FROM THE MANUFACTURE OF TITANIUM DIOXIDE BY THE SULPHATE PROCESS

摘要

A process for extracting one or more metals from a metal containing material, as herein defined, including the step of treating said metal containing material with an aqueous, acidic solution containing effective concentrations of iron-containing species, sulphuric acid and one or more leach rate accelerants present in the co-product solution from the manufacture of TiO2 by the Sulphate Process, whether said leach rate accelerants are present as a result of using a co-product solution or are separately compounded.