Union Carbide Corporation

Charles Henry McMullen

Bernard C Ream

James R Nelson

Joseph Alton Sims, Jr

A process for making alkylene carbonate by the reaction of carbon dioxide and an alkylene oxide of the formula ##STR1## wherein R, R.sub.1, R.sub.2 and R.sub.3 are one or more of hydrogen, alkyl, aryl, alkaryl, aralkyl, cycloalkyl, allyloxy, chloroalkyl, and aryloxy to produce the corresponding carbonate, which comprises:

Alkylene carbonate process

A catalytic liquid phase process for the production of olefin oxides comprising admixing an olefin and hydrogen peroxide in the presence of an arsenic catalyst which is provided to the reaction as either elemental arsenic, an arsenic compound or mixtures thereof, the arsenic content of said compound being present in catalytically active amounts, said compound being essentially free of tungsten, molybdenum, vanadium and chromium; and the temperature of the admixture is in the range of about 25.degree. to about 200.degree. C.

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Scarsdale, NY, United States of America

Charles Henry McMullen