METHOD OF THE SELECTIVE EXTRACTION OF MOLYBDENUM FROM THE SOLUTIONS CONTAINING MOLYBDENUM AND VANADIUM USING XANTHATE SEQUESTERING AGENTS

摘要

FIELD: petrochemical industry; methods of the selective extraction of molybdenum from the solutions containing molybdenum and vanadium. ^ SUBSTANCE: the invention is pertaining to the method of the selective extraction of molybdenum from the liquid mixtures, in which molybdenum is present with vanadium at the amount of molybdenum exceeding (200) mg/l. The method includes the following stages: bringing the liquid mixture Ph value to the value less than 3, adding to this solution of the solution of alkaline xanthate at maintaining the molar ratio of molybdenum /alkaline xanthate within the interval from 1/4 up to 1/8 at the constant value of pH by means of addition of the inorganic acid, stirring the mixture and settling the molybdenum present in the mixture. The technical result of the invention is the high product yield at separation of molybdenum and vanadium and simplification of the production process. ^ EFFECT: the invention ensures the high product yield at separation of molybdenum and vanadium and simplification of the production process. ^ 5 cl, 1 tbl, 3 ex