METHOD FOR REPROCESSING OF COPPER-CHLORIDE FUSION CAKE, WHICH IS WASTE FROM TITANIUM TETRACHLORIDE CLEANING Russian patent published in 2008 - IPC C22B7/00 C22B34/12 C01G3/10 

FIELD: metallurgy.

SUBSTANCE: it is received copper vitriol at reprocessing of copper-chloride fusion cake, which is waste of titanium tetrachloride cleaning. Reprocessing method includes receiving of fine material by treatment of fusion cake by water, its treatment by oxidant at blending, filtration and filtrate treatment by sodium hydroxide and separation of deposit by filtering. In the capacity of oxidant it is used sodium or potassium hypochlorite. Before treatment by sodium hydroxide fine material is filtered, deposit in the form of iron compounds is separated. At treatment of filtrate by sodium hydroxide deposit is received in the form of copper hydroxide, it is washed and repulped in the solution of copper sulfate, heated and during blending is treated by sulfuric acid. Received heated solution of copper sulfate is filtered, filtrate is cooled with receiving of copper sulfate dies, copper sulfate dies are separated by means of filtration, washed and dried. Filtrate received after copper sulfate dies separation is directed to preparation of sulfuric acid water solution or to repulping of copper hydroxide deposit.

EFFECT: creating of wasteless technology of copper vitriol receiving.

4 cl, 1 ex