TY JOUR TI PHYSICOCHEMICAL AND TECHNOLOGICAL BASES OF PRODUCTION OF DESULPHURISED CRYOLITE FROM MUSCOVITE-STAVROLITE SHALES OF TAJIKISTAN KW CRYOLITE KW ALUMINIUM SULPHATE KW POTASSIUM ALUM KW SODIUM FLUORIDE KW MUSCOVITE-STAVROLTA SHALE KW “KURGOVAD” DEPOSIT KW SULPHATIZATION KW ALUMINIUM PRODUCTION JO Herald of Technological University AU Naimov, N.A. AU Mirsaidov, U.M. AU Giyosiddin, A.. AU Kholov, Q.S. PY 2025 IS 27 PB Kazan National Research Technological University