DEVELOPMENT OF AN ENVIRONMENTALLY FRIENDLY AND HIGHLY EFFICIENT METHOD FOR THE SEPARATION OF COBALT (II), COPPER (II), NICKEL (II), AND CADMIUM (II) IONS FROM CADMIUM – COBALT - NICKEL CAKES GENERATED AT THE ZINC PLANT OF “ALMALYK MMC” JSC
In this article, information is presented on the methods of concentrating and separating cobalt (II), copper (II), nickel (II), and
cadmium (II) ions, the industrial technologies for producing cobalt (II), copper (II), nickel (II), and cadmium (II) ions, as well as
the composition of their minerals. In addition, data are provided on the types of wastes generated during the production process at
the Zinc Plant of “Almalyk MMC,” including zinc cake, hydrate cake, and cadmium–cobalt–nickel cakes, along with their chemical
composition and separation methods. Although ores and industrial wastes containing cobalt are available, the metal is still not being
introduced into industrial production in its metallic form. With the continuous development of industry, intermediate products
known as cakes accumulate as industrial waste, posing a serious environmental threat. These intermediate products contain up to
approximately 2.03% cobalt metal, and from such cakes it is possible to extract 6 tons of cobalt per week, 24 tons per month, and
280–300 tons per year.
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