Efficient Separation Process for Low-Grade High-Talc Molybdenum Ore
In response to the problems of high molybdenum loss and difficulty in molybdenum/talc separation existing in the desliming process of a high talc-type molybdenite ore from Henan,ZN-J1,a molybdenum depressant,was introduced in the desliming section to minimize efficiently the molybdenum loss.The feed ore with Mo grade of 0.116%,molybdenum sulfide percentage of 83.53%and talc content of 14.0%was processed by adopting a flowsheet,consisting of desliming,pre-flotation of molybdenum,regrinding,and molybdenum/talc separation,with a combination of sodium silicate and ZN-P1 as depressant.A closed-circuit test with the whole process produced a molybdenum concentrate with Mo grade of 47.68%and Mo recovery of 75.41%,respectively.
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