Tungsten Recycling Optimization out of the Fine Mud Flotation Tailings

This paper introduces the ore properties, fine mud production technology and status of an ore dressing plant. Flotation experiments were performed on the fine mud tailings to solve the low recovery rate resulted from gravity processing. Comparison results of fine mud centrifuge test, magnetic-gravity separation combined process and shaking table test reveal the optimized technology process, that is, rough dressing by high gradient magnetic separator, fine dressing by fast fine shaker. The grade of fine mud tungsten concentrates increases from 19.07 %(recovery rate 15.60 %)to 30.26 %(recovery rate 54.35 %). The annual increased fine mud tungsten concentrate reaches 7.7 t with 1.2 Million economic benefits.