The depressant of copper and iron sulfide in molybdenum alloy float control circuit

摘要

In the buoyancy recovery process of grinding molybdenum, one way to inhibit copper and iron sulfide is to use alkaline or alkaline polysulfide with high pH value. The method of adding a suspension containing molybdenum and the molybdenum content of at least one iron sulfide and copper sulfide may include a step of increasing the number of an effective depreciation agent selected from one or more alkaline polysulfides, polysulfides or mixtures thereof, A stop, the pH value of stop is more than about 8.0;Molybdenum is recovered from the foam by the selective buoyancy separation of the gas through the suspended solids. The method may include the steps of providing a suspending agent including molybdenum, one or more copper sulphides and iron sulphides; adding a depreciation agent in which the depreciation rate includes at least about 0.003 kg of alkali polysulfide, alkali polysulfide or a mixture thereof, Suspended matter per kilogram (dry basis)In this case, the resulting suspension pH value is greater than about 8; and a substance is converted into a gas by suspension so that the substance can be separated by selective buoyancy and molybdenum can be recovered from the foam.