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.

Influence of hydrotalcite preparation conditions on its physico-chemical properties

Miroslava Mališová *, Michal Horňáček, Pavol Hudec, Jozef Mikulec a, Vladimír Jorík b, Elena Hájeková

Department of Organic Technology, Catalysis and Petroleum Chemistry, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovakia
a Research Institute of Petroleum and Hydrocarbon Gases, Vlčie Hrdlo, 820 03 Bratislava, Slovakia
b Department of Inorganic Chemistry, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovakia

E-mail: * mamiroslava@gmail.com

Abstract: The aim of the research was to prepare and characterize hydrotalcite synthesized under different preparation conditions. The most common hydrotalcite preparation is the co-precipiaton method. The preparation process strongly influences the catalytic properties of hydrotalcite; therefore, optimal conditions have to be determined. During the study, seven samples of the catalyst were prepared in the pH range from 8 to 12 and the synthesis temperature range from 25 to 55 °C. Based on several catalyst properties, optimal synthesis pH 10 was found. Ideal temperature of the preparation was determined to be 35 °C, but the temperature does not have a significant effect on the catalyst properties.

Keywords: hydrotalcite, preparation conditions, co-precipitation, catalyst

Full paper in Portable Document Format: acs_0334.pdf

Acta Chimica Slovaca, Vol. 12, No. 1, 2019, pp. 119—126, DOI: 10.2478/acs-2019-0017