Mineral Processing Technology on a Wolframite and Scheelite Symbiosis Ore

A complex and low grade wolframite-scheelite associated ore has the characteristics of fine granularity and complex embedded relations.It is difficult to obtain good technical indicators.We researched different processes,including magnetic separation-flotation process and flotation-magnetic separation-flotation process,to obtain good technical indicators.By means of magnetic separation-flotation process,scheelite concentrate with grade of 72.59 % WO3 and recovery rate of 30.15 %,and wolframite concentrate with grade of 55.36 % WO3 and recovery of 47.81%,were obtained with the total tungsten recovery rate amounting to 77.96 %.By means of flotation-magnetic separation-flotation process,scheelite concentrate with grade of 74.57 % WO3 and recovery of 72.90 %,and wolframite concentrate with grade of 28.88 % WO3 and recovery of 8.48 %,were obtained with the total tungsten recovery rate amounting to 81.38 %.