TY JOUR TI DEVELOPMENT OF EFFECTIVE TECHNOLOGIES FOR PROCESSING METALLURGICAL TAILINGS KW TAILINGS KW NICKEL KW IRON KW LEACHING KW EXTRACTION KW ROASTING KW ELECTROLYSIS KW TECHNOLOGY JO Herald of Technological University AU Shakirov, T.R. AU , .. AU , .. AU , .. AU Ahmetov, I.I. PY 2025 IS 28 PB Kazan National Research Technological University