Process for preparing alkylene carbonates from alkylene oxides

Abstract From the Canadian patent

Process for Preparing Alkylene Oxides, from Alklene Carbonates Inventor, Robert M. Weinstein, Abstract of the Disclosure An alkylene oxide, e.g. ethylene oxide is prepared, from the corresponding alkylene carbonate e.g. ethylene, carbonate, in the presence of an effective amount of a quaternary arsonium halide. The quaternary arsonium halides are also effective catalysts for the reverse reaction that, is, to form alkylene carbonates from the corresponding epoxide and carbon dioxide.