TY JOUR TI COLLOIDAL AND CHEMICAL PROPERTIES OF BENTONITES FROM THE ORENBURG REGION KW BENTONITE KW SMECTITE KW MONTMORILLONITE KW DRILLING MUD KW MOLDING MIXTURE KW MODIFICATION JO Herald of Technological University AU , .. AU Shakirov, T.R. PY 2025 IS 28 PB Kazan National Research Technological University