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Catalysis in Green Chemistry and Engineering

Erscheint 4 Ausgaben pro Jahr

ISSN Druckformat: 2572-9896

ISSN Online: 2572-990X

H-Index: 2

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SELECTIVE TRANSESTERIFICATION OF GLYCEROL TO GLYCEROL CARBONATE OVER SrO-ZrO2 BASE CATALYSTS

Volumen 1, Ausgabe 1, 2018, pp. 79-90
DOI: 10.1615/.2017020825
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ABSTRAKT

Glycerol carbonate was prepared selectively by transesterification of glycerol with dimethyl carbonate over heterogeneous strontium-zirconium mixed oxide base catalysts. These catalysts were prepared by coprecipitation method with varying Sr to Zr molar ratio and characterized by Brunauer-Emmett-Teller (BET) surface area, X-ray diffraction, and temperature programmed desorption of CO2. The catalysts' activity was varied with variation in the Sr to Zr ratio and the catalysts with the ratio of 3:1 exhibited the highest activity towards glycerol carbonate. The characterization results suggested that the activity of the catalysts depended on the amount of basic sites present in the catalysts and the basicity was dependent on the Sr to Zr ratio and treatment temperature. The effect of reaction parameters on the yield of glycerol carbonate was studied and also the kinetic expression was derived. The catalyst showed consistent activity upon reuse.

REFERENZIERT VON
  1. Matsuhashi Hiromi, Synthesis of highly active solid base catalysts of SrO-ZrO2 and SrO-SiO2 by solid–liquid interface reactions of hydrated strontium hydroxide with metal alkoxides, Catalysis Today, 2022. Crossref

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