METHOD OF DETOXIFICATION OF SPENT THIOUREA SOLUTIONS IN THE PROCESSES OF REGENERATION OF ION-EXCHANGE RESIN AND CYANIDE-CONTAINING "TAIL" PULP IN GOLD-EXTRACTING PLANT WORKING BY ION-EXCHANGE TECHNOLOGY Russian patent published in 1995 - IPC

FIELD: chemical technology. SUBSTANCE: disposal thiourea solution from the process of ion-exchange resin regeneration is added to the solution of chlorine-containing oxidizing agent, and prepared mixture is used for treatment of cyanide-containing "tail" pulp. Thiourea solution is added to the solution of chlorine-containing oxidizing agent up to the concentration of active chlorine 10-40 g/l. Before treatment mixture is kept for 1-8 h. EFFECT: simplified method of detoxification at permissible concentrations of toxic components. 2 cl, 1 tbl