Acta Chimica Slovaca (ACS) publishes papers on fundamental and applied aspects of chemistry, biochemistry, chemical technology, chemical engineering and process control, biotechnology and food technology. Welcome are also topics which include chemical aspects of materials, physical chemistry and chemical physics, analytical chemistry, macromolecular chemistry and biomedical engineering.

Determination of the Reactivity of CaSO4 · 2H2O

Vladimír Danielik *, Pavel Fellner, Jana Jurišová, Milan Králik a

Institute of Inorganic Chemistry, Technology and Materials, Faculty of Chemical and Food Technology STU in Bratislava, Radlinského 9, 812 37 Bratislava, Slovak Republic
a VUCHT, a.s., Nobelova 34, 836 03 Bratislava, Slovak Republic

E-mail: * vladimir.danielik@stuba.sk

Abstract: Reactivity of energy gypsum was investigated. The method is based on the conversion reaction of aqueous suspension of gypsum with ammonium carbonate solution. Rate of the conversion of all investigated samples, including gypsum originating from flue gas desulphurization (FGD), was high and 80 % conversion was achieved during one hour. It was found that there is a correlation between BET specific surface and the rate of the conversion reaction.

Keywords: FGD gypsum, reactivity of CaSO4·2H2O, ammonium carbonate, BET surface

Full paper in Portable Document Format: acs_0232.pdf

Acta Chimica Slovaca, Vol. 9, No. 1, 2016, pp. 1—5, DOI: 10.1515/acs-2016-0001