Titanium-rare-metal concentrates from raw materials of the Kola region and the possibility of their joint processing to obtain scarce products

The current conditions in the world politics and economics determine the importance of solving the development problem of the Arctic zone of the Russian Federation. From this point of view, the use of the Kola Peninsula richest deposits to provide Russia’s high-tech industry with strategic materials is very promising. The researchers propose a new variant of combined sulfuric acid processing of the titanium-rare-metal material consisting of perovskite and sphene concentrates according to a safe scheme. Such technological method allows regulating kinetic parameters of their acid decomposition process due to different chemical activity of minerals and, thereby, contributes to the increase of titanium and niobium extraction into sulfuric acid liquid phase and its deactivation (thorium removal) due to the presence of surface-active silica in the system.