부유선별 기술을 이용한 상동광산 광물찌꺼기 무해화

Tailing (20,000,000 ton) from Sangdong abandoned mine was causing the environmental problem which was produced during the recovery of tungsten in mine. High concentration (200～300 mg/kg) of arsenic in the tailing can be move to soil and water system, and cause the ecocide. Many researchers was try to solve the tailing problem by recycle materials product and solidification/stabilization of arsenic. The goal of the present study was separation of arsenic in tailing for collection of sink (contained low concentration of As) by flotation method. Flotation study was conducted using Na₂S, K.A.X and AF65 in the batch experiment, and its optimal condition was applied for pilot scale.