The paper presents the results of studies of the possibility of obtaining heat-resistant ceramic products based on natural clay raw materials of the Republic of Belarus of various mineral composition, Onotsky talc, as well as synthetic alumina-containing components. The processes occurring during the synthesis of ceramics for technical purposes, the change in the phase composition and properties of the material during heat treatment have been studied. The conditions for obtaining a heat-resistant material, as well as the parameters of its operation, are determined. On the basis of the obtained experimental data, laboratory and industrial tests, the prerequisites for organizing the production of heat-resistant ceramics in the Republic of Belarus based on domestic clay raw materials have been created.