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Styrene carbonate synthesis from CO2 using tetrabutylammonium bromide as a non-supported heterogeneous catalyst phase

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  • Carmen A. Montoya
  • Ana B. Paninho
  • Felix Pedro M.
  • Malgorzata E. Zakrzewska
  • Vital Joaquim
  • Vesna Najdanovic-Visak
  • Ana V.M. Nunes
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<mark>Journal publication date</mark>05/2015
<mark>Journal</mark>Journal of Supercritical Fluids
Volume100
Number of pages5
Pages (from-to)155-159
Publication statusPublished
Early online date8/02/15
Original languageEnglish

Abstract

The production of cyclic styrene carbonate from CO2 cycloaddition to styrene oxide, using tetrabutylammonium bromide (TBABr) as catalyst, was investigated. Two different reaction systems, a CO2-rich and an epoxide-rich were studied. Reactions were performed in a visual high pressure cell, at different temperatures (313.2, 333.2, and 353.2 K) and pressures (0.5-18 MPa). High pressure phase behaviour manipulation of the reaction system was explored to shift catalysis from homogeneous to heterogeneous, by changing operation conditions. Styrene carbonate formation was monitored quantitatively by using 1H-NMR spectroscopy.