PROCESS FOR EXTRACTING GOLD, SILVER, PALLADIUM AND OTHER NON-FERROUS METALS BY CHEMICAL REDUCTION FROM PRECIOUS METAL OR NON-FERROUS METAL CONTAINING SOLUTIONS COMPRISING CYAN OR OTHER COMPLEX FORMING MATERIAL AS WELL

摘要

1 kg KCN in a 35% hydrogen peroxide soln. is added at a rate of 5-15 l/hour at 15-60 deg. C and at pH 8-11 to the soln. contg. the precious metals