METHOD FOR INTEGRATED TREATMENT OF TAILINGS OF FLOATATION BENEFICIATION OF MOLYBDENUM-TUNGSTEN ORE

摘要

FIELD: chemistry.;SUBSTANCE: method for integrated treatment of tailings of floatation beneficiation of molybdenum-tungsten ore involves preliminary separation of a mineral fraction with relatively high average content of molybdenum and tungsten according to physical properties. That fraction is subjected to thermal or thermochemical treatment, which provides thermal dissociation and sublimation of said metals in form of volatile compounds - oxides, e.g., tungsten and molybdenum trioxides, followed by deposition at different temperature in an oxidative, neutral or reducing atmosphere, which enable to separate molybdenum and tungsten on a reaction substrate, e.g., on calcite, to form artificial calcium tungstate or molybdate, respectively.;EFFECT: recovery of molybdenum, tungsten and other metals from tailings of floatation beneficiation of molybdenum-tungsten ores.;2 cl, 4 dwg, 6 tbl