METHOD FOR PURIFICATION OF OPEN CAST UNDERGROUND WATERS OF SULPHIDE-OLYMETALLIC DEPOSITS FROM IONS OF COPPER, ZINC AND IRON

摘要

In a reactor equipped by an agitator the cementation of open cast underground waters is carried out by powdery metal iron. The liquid and solid phases are separated in settling tanks-thickeners. Then the powdery copper and the solid phase containing iron are processed at temperature 40-60°С in 20-70% solution of sulfuric acid by intensive stirring. After the repeated separation of the liquid and the solid phases copper is precipitated, and into the liquid phase are added hypochlorite of sodium and calcium, which results in receiving solid, jellied iron trivalent hydroxide mass, which is filtrated, washed, again filtrated and burned, into the remained solution of zinc sulphate is added ammonia and the obtained jellied suspension of zinc hydroxide is filtrated and burned.