Study of the possibilities of technology of complex extraction of useful components from coastal-sea placers of primorye with application of methods of pyro-hydrometallurgy

Intensive exploitation of placer gold deposits in Primorye led to the depletion of their geological reserves, which was reflected in a sharp decrease in the production of precious metals. An alternative source of precious metals is the never before exploited placer deposits of the Primorsky shelf, which have concentrated a significant amount of gold and titanomagnetite. The importance of gold as the basis of the economic security of our country can hardly be overestimated. Titanomagnetites are solid solutions of titanium dioxide in magnetite containing a rich gamut of impurities V, Cr, Zr and other alloying elements. Russia has gained vast experience in processing gold-bearing ores, but the problem of developing gold-titanomagnetite coastal-marine placers has not yet been solved. The objectives of our research included assessing the possibilities of industrial processing of metal-bearing sands of the Rudnev Bay of the Sea of Japan using pyro-hydrometallurgy and fluoride opening methods...