FEATURES OF THE ENRICHMENT OF VIETNAM ILMENITE ORES BY THE MAGNETIC SEPARATION METHOD
The study of the possibility of beneficiation of ilmenite ores of the Ha Ting deposit (Vietnam) by the method of electromagnetic separation has been carried out. Ilmenite concentrates obtained as a result of enrichment can be used for further processing to obtain pigment titanium dioxide or titanium metal in compact form or in powder form. The enrichment processes of the ilmenite ores of the Vietnamese de-posits have not been sufficiently studied, therefore, for their enrichment, the method of electromagnetic separation, which is most widely used in industrial practice, was used, which provides the required results when enriching ores of complex composition. It is shown that in order to obtain ilmenite concentrates with a high concentration and degree of titanium enrichment, magnetic separation must be carried out in 4 stages with a gradual decrease in the current strength from 11 to 6 A. At the 1st and 2nd stag-es, to ensure the complete release of ilmenite from the ore, the process is carried out at 11 and 9 A. Then, at the 3rd and 4th stages, to increase the concentration and degree of enrichment of ilmenite in the resulting product, the current strength is gradually reduced to 7 and 6 A. As a result, an ilmenite concentrate is obtained with a titanium dioxide concentration of at least 50 % and a degree of enrichment of 49 %. This concentrate can be further used in the process of chemical processing to obtain titanium and its various compounds.