Study on a new gravity-flotation-gravity technique for processing the fine scheelite and wolframite ore

In the light of the ore's mineralogy,a gravity-flotation-gravity flowsheet was used to process the fine scheelite and wolframite ore.Firstly,the mixed concentrate of scheelite and wolfmirate was obtained,and then the scheelite concentrate and wolframite concentrate were obtained by scheelite warming selection and table gravity separation,respectively.Scheelite concentrate with a grade of 55.38% WO3 and recovery rate of 29.82%;and wolfmirate concentrate with a grade of 38.76% WO3 and recovery rate of 32.55% were obtained when the scheelite and wolfmirate fine clay with a grade of 0.33% WO3 was dealed with.The average grade of scheelite and wolfmirate reached 45.26% WO3,and the total recovery was 62.74%.