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

Carmen A. Montoya, Ana B. Paninho, P. M. Felix, Malgorzata E. Zakrzewska, J. Vital, Vesna Najdanovic Visak, Ana Vital Morgado Marques Nunes

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21 Citations (Scopus)

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 H-1 NMR spectroscopy. (C) 2015 Elsevier B.V. All rights reserved.

Original languageEnglish
Pages (from-to)155-159
Number of pages5
JournalJournal of Supercritical Fluids
Volume100
DOIs
Publication statusPublished - May 2015

Keywords

  • Carbonates
  • CO2
  • Epoxides
  • High pressure
  • Ionic liquids
  • IN-SITU FTIR
  • IONIC LIQUIDS
  • SUPERCRITICAL CO2
  • ASYMMETRIC DIHYDROXYLATION
  • CYCLIC CARBONATE
  • DIOXIDE
  • EQUILIBRIUM
  • KINETICS
  • SYSTEM
  • SOLUBILITY

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