IMPROVEMENT OF THE TECHNO¬LOGY FOR OBTAINING MANGANESE(IV) OXIDE FROM SECONDARY RAW MATERIALS

Today's level of integrated use minerals and beneficiation wastes in Ukraine, particular, at the Kryvbas GOK, is unsatisfactory, as it generally allowing production additional types construction products. The volume mining growing, but only a small percentage extracted transferred to finished product. residue form waste returned environment, polluting it. reason for this lack technology mineral processing disposal.
 article presents results industrial tests off-balance manganese ore Ordzhonikidze GOK with content 15–30%. It shown that nitric acid leaching subsequent precipitation impurities soda or alkali allows you consistently purify from transition alkaline earth metals. obtained oxide has high degree purity, which obtaining pure compounds Mn (NO3)2∙6H2O, MnO2 metallic chemical current sources. columnar clarifiers fluidized bed application pulsations allowed eliminate time-consuming filtration processes. Concomitantly formed sodium nitrate serves raw material fertilizers. Experimental studies on ores us determine main technological parameters extraction components develop scheme beneficiation.
 According proposed scheme, possible obtain high-quality concentrates (IV) oxide. optimal enrichment up 95% be materials. In long run, will reduce dependence imports materials significantly cost domestic