TY JOUR TI Deactivation of vanadium sulfuric acid catalysts on diatomite KW sulfur dioxide KW vanadium catalyst KW deactivation KW cristobalite KW surface layer morphology KW activity JO From Chemistry Towards Technology Step-By-Step AU Yashkova, D.N. AU Smirnov, N.N. AU Grishin, I.S. AU Kunin, A.V. AU Khapalov, A.A. PY 2025 IS 6 PB Yaroslavl State Technical University