Journal
APPLIED CATALYSIS A-GENERAL
Volume 298, Issue -, Pages 177-180Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apcata.2005.09.034
Keywords
cyclic carbonate; non-halogen; Supercritical carbon dioxide; cesium-phosphorous-silicon mixed oxide; cesium phosphate
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Cesium-phosphorous-silicon mixed oxide (Cs-P-Si oxide), a typical acid-base bifunctional catalyst, efficiently catalyzes propylene carbonate synthesis from CO2 and propylene oxide under supercritical conditions (8-10 MPa). This catalyst contains no halogens and requires no additional solvents. A portion of the catalyst was eluted into the product solution during catalysis. It was also found that Cs3PO4, one of the species that may be eluted from the Cs-P-Si oxide, is an effective non-halogen homogeneous catalyst. (c) 2005 Elsevier B.V. All rights reserved.
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