Experimental Research on Recycling Phlogopite from Molybdenum Tailings

Abstract

Taking molybdenum tailings as the research object, the methods of recovering phlogopite on the base of comprehensive utilizations of other valuable minerals has been discussed. The best flotation condition includes that pulp density is 25%, the value of pH is 8.4, and the spindle speed of the batch flotation cell is 1850 r/min, sodium silicate is used as the silicate inhibitor, sodium oleate as collector, alkyl amine as the foaming agent. After cleaning and scavenging, the yield of the recovery and grade of concentrated phlogopite could be reached above 40% and 9.5%, and the yield of recovery and grade of scavenged phlogopite could be reached above 20% and 7.0%. The experimental research may provide the theoretical and experimental basis for phlogopite flotation from molybdenum tailings.