Activation and reactivity of oil shale cyclone ash towards SO2 bindingKaljuvee, Tiit; Träss, Olev; Pihu, Tõnu; Konist, Alar; Kuusik, Rein, keemikESTAC-11 : the 11th European Symposium on Thermal Analysis and Calorimetry : Dipoli Congress Center, Espoo, Finland, August 17-21, 2014 : abstracts2014 / p. 14