Abstract
Introduction. The problem of processing waste from the mining and metallurgical complex of the Republic of Kazakhstan, including manganese ore processing waste, is relevant both from a technological (expanding the raw material base and assortment of marketable products) and from a geoecological (minimizing waste, preserving resources and the environment) point of view. The purpose of this work is to study the possibility of processing manganese ore processing waste from some deposits in Kazakhstan into phosphating solutions. Results and discussion. Using electron-probe, energy-dispersive X-ray fluorescence, X-ray phase analysis, the material and mineral composition of manganese ore concentration wastes from the Borly, Zhayrem and Altyn-Shoko deposits was studied. It was found that the total content of soluble compounds in the productive solution of phosphate leaching of waste from Borly is 3.0-3.1 g/l with a ratio of total acidity to free acidity of 1.6-1.9, which excludes the possibility of using this solution to create anti-corrosion coatings. Productive solutions of phosphate leaching of manganese ore concentration wastes of Zhayrem and Altyn-Shoko deposits have total content of soluble dihydrogen phosphates of 26.0-29.3 g/l (Zhayrem) and 30.2-34.5 g/l (Altyn-Shoko) with total acidity to free acidity ratio of 1.8-2.7. Conclusion. The possibility of obtaining anticorrosive phosphating solutions based on manganese ore concentration wastes from the Zhaipem and Altyn-Shoko deposits is shown.