Procedure for the extraction of Copper from copper sulfide Concentrate containing arsenic.

摘要

Provided is a process for the extraction of Copper from a Copper sulfide Concentrate containing arsenic.The process includes leaching oxidizing Atmospheric food that includes a suspension of Copper sulfide Concentrate containing Arsenic acid leaching and Dissolution of coNTiene Iron sulfate in the presence of Oxygen to produce a Slurry that includes leaching copper and Arsenic dissolved in the leaching Solution.After Dissolving The copper and Arsenic, and before precipitating Arsenic dissolved during the leaching OxidantThe Solid preprecipitación recovered from the Leach slurry to produce Solids prior to precipitation and a resulting Solution leaching loaded with copper andThe arsenic.The Seed contains escorodita is introduced into the leaching Solution loaded with copper and Arsenic to induce the precipitation of dissolved Arsenic leaching oxidized duringYou, as escorodita.The Solids are recovered from the Leach solution to produce Solid Results, including the escorodita and reduced Arsenic leaching Solution Loaded, including Copper.The leaching solution is loaded with Arsenic Copper is subjected to solvent extraction to recover copper and produce a refined with sulfuric acid and sulfate HIERro, and at least a part of the refined includes Sulphuric Acid and ferrous sulfate is recycled to the oxidation leaching.