ПЕРЕРАБОТКА МОЛИБДЕНОВЫХ КЕКОВ АО «АЛМАЛЫКСКИЙ ГМК» МЕТОДОМ ЭЛЕКТРООКСИДАЦИИ В РАСТВОРАХ NACl. ЧАСТЬ 1

Background. One of the types of industrial wastes of Almalyk MMC JSC is cakes of nitric acid leaching of molybdenum concentrates. stored in the tailings of the plant, allowing to increase the output of the plant's main products. They include 4.1% molybdenum, 20-25 g/t of gold and other valuable components. Purpose: technology for extracting Mo and other components from molybdenum cakes by electrooxidation in hydrochloric acid medium. Methodology. A Mo-cake leaching unit was used, a direct current source up to 20 A generating chlorine at the anode. Mo(VI), Ðu(III), Cu(II) ions were analyzed photocolorimetrically and spectrometrically (ÐÐС Perkin-Elmer 3030Ð', ICP-Agilent 7500 IСP MS). Active chlorine NaClO was determined according to GOST 18190-72, free chlorine was determined by titration with methyl orange. Originality. The introduction of gold into the composition of Mo-cake in contact with hypochlorite ions is considered. Mathematical modeling of the process was carried out with the formulation of a threefactor experiment. An alternative to the roasting-soda scheme for the Mo-cake electrooxidation method has been proven. Findings. The oxidation of Mo-cake in a hydrochloric acid medium by hypochlorite ions was studied. Leaching products have been studied. [ABSTRACT FROM AUTHOR]