Experimental Study on Capitalizing tailings again

There were two tailings dam in Hong Toushuan Copper mine,which stored 3 million tons tailings and increased 100,000 tons tailings per year,chief sulphide were prrite and pyrrhotite in the tailings.Capitalizing tailing resources and sulphur of the tailings was recovered,three samples of the tailings were studied to recover sulphur of the tailings.at last,sulphur of non-oxidated parts of new tailing was recovered.Sulphur grade was 6.11%in the tailing,without grinted,the result of the closed circuit experiment follows: sulphur concentrate grade was 44.52%,the recovery was 81.99%.considering the undulation of the tailings,it estimated that sulphur concentrate grade was 36%,the recovery was 50%.If the plant was built which treated 1 000 t/d,it could obtaine 158,000 yuan per year.