Acid and Thermal Treatment of Alkali-Activated Zeolite Foams Tišler, Zdeněk ; Hrachovcová, Kateřina ; Svobodová, Eliška ; Šafář, Jan ; Pelíšková, Lenka Abstract Publication: Minerals Pub Date: November 2019 DOI: 10.3390/min9120719 Bibcode: 2019Mine....9..719T