General Electric Company

Sabic Innovative Plastics IP B.v.

Leon Kalle

Stephan Mathijs Bouwens

Cornelis Adrianus Maria Van Gool

George P Moloney, Jr

Maarten Campman

Daniel Favre

Jan Van De Broek

An apparatus for preparing a dialkyl carbonate comprises means for reacting an alkanol, oxygen, carbon monoxide, and a catalyst to form a mixture comprising a dialkyl carbonate, an alkyl chloroformate, hydrochloric acid, water, carbon dioxide, and carbon monoxide; means for separating from the mixture a gaseous fraction comprising carbon monoxide and alkyl chloroformate; and means for removing alkyl chloroformate from the gaseous fraction.

Apparatus for preparing a dialkyl carbonate

A method of preparing a dialkyl carbonate includes reacting an alkanol, oxygen, carbon monoxide, and a catalyst to form a mixture that includes a dialkyl carbonate and an alkyl chloroformate. The mixture is separated into a liquid fraction and a gaseous fraction, and alkyl chloroformate is removed from the gaseous fraction. Also described is an apparatus for carrying out the method. The method is particularly useful for preventing corrosion in a cold wash unit that removes further organic impurities from the gaseous fraction.

Method and apparatus for preparing a dialkyl carbonate

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Almere, Netherlands

Leon Kalle