A comprehensive study of the compositions and properties of primary kaolins of the deposits of the Republic of Belarus "Sitnitsa" and "Dedovka" has been carried out. The fractional mineralogical and chemical composition, phase transformations upon heating, dilatometric characteristics and properties of kaolin raw materials have been studied. The relationship between the degree of conditionality, structure and physicochemical characteristics was established, which made it possible to recommend the most rational methods of enrichment of the studied kaolin raw materials.
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