METHOD OF EXTRACTING OF METALS OUT OF CONTAINING IRON SUPLHATE SOLUTIONS Russian patent published in 2008 - IPC C22B15/00 C22B3/26 

FIELD: metallurgy.

SUBSTANCE: invention refers to hydro metallurgy of copper as well as other non-ferrous metals by method of extracting out of sulphuric acid solutions with organic extragent and by means of electro extraction, particularly by heap, underground and vat leaching of ore, as well as concentrates, dumps, tails, slag and so on out of solutions. The technical result of the this invention is reduced costs for processing due to reduced cost and consumption of extragent, upgraded quality of the finished product - cathode copper, increased extraction of copper out of solution. The method of copper extraction out of containing iron sulphate solutions includes extraction of copper with cation exchanging organic extragent and production of copper containing extract and stripped raffinate. Further the extract is washed from iron, and re-extraction of copper out of washed extract is performed with production of re-extract and extragent. Cathode copper and spent electrolyte are produced from re-extract by means of electro extraction.

EFFECT: reduction of process costs due to reduced cost and consumption of extragent, upgraded quality of finished product - cathode copper, increased extraction of copper out of solution.

15 cl, 2 ex