Scientific Research* Enrichment of Sylvinite Ore with High Content of Clayey Impurities* Granulation of Finely Dispersed Flotation Potassium Chloride* Methods for Obtaining Chlorine-Free Potassium and Complex Fertilizers with Improved Consumer Properties* Mechanochemical Activation of PhosphoritesExperimental and Technological Developments* Development of technologies for processing polymineral potassium and phosphate ores, conversion methods for obtaining potassium sulfate, technologies for enriching sylvinite ores and improving the quality of mineral fertilizers.* Development of initial data and justification of technological approaches to organizing new mining and processing industries.* Engineering support for technological projects for the creation of new large-scale industries for processing mineral salts and by-products of their production.In order to implement a pilot version of the full cycle of enrichment and processing technology for potash and polymineral raw materials, a pilot site equipped with technological equipment has been created - the most important link on the way from laboratory technologies to large-scale industrial production. The results of testing all key stages of the technological process at the pilot site are sufficient for the subsequent design and construction of enterprises for enrichment and processing of potash and polymineral ores.