TREATING PROCESS OPTIMIZATION OF THE RESIDUE CONTAINING Zn, Cu, As AND Co

摘要

On the base of the properties of the material, this paper presents a treating process of selective leaching with sulfuric acid to seperate copper and arsenic from other metals. Arsenic is removed from the main body by the compound cupric arsenate and the rest of copper ion in the solution is eleminated from the solution by neutralizing it with the calcine. The exprimental results indicate that nearly 100% arsenic and 99% copper are in the residue, which is leached with sodium hydroxide solution to obtain high grade copper concentrates.