Preparation of furan by decarbonylation of furfural
AssigneeBASF SE
InventorsLudwig Wambach, Matthias Irgang, Martin Fischer
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Abstract
Furan is prepared by decarbonylation of furfural in the gas phase at elevated temperatures and under from 0.1 to 10 bar in the presence of hydrogen and a catalyst which contains platinum and/or rhodium and contains an alkali metal. The reaction is carried out in the presence of hydrogen. Catalysts which contain platinum and/or rhodium and to which cesium has been added are preferably used.
Claims6
A process for the preparation of furan comprising decarbonylating furfural in the gas phase at from 250.degree. to 400.degree. C. at a pressure of from 0.1 to 10 bar in the presence of hydrogen and a catalyst containing from 0.01 to 10% by weight of platinum, rhodium or mixture thereof and from 0.1 to 10.0% by weight of an alkali metal, the molar ratio of hydrogen to furfural being not less than 0.5:1.
Dependencies are inferred from the claim text.