Continuous process for the carbonylation of acetylenes

Details Continuous process for the carbonylation of acetylenes Continuous process for the carbonylation of acetylenes

C - Chemistry, Metallurgy

07

C

C07C 69/54 (2006.01) C07C 51/14 (2006.01) C07C 57/04 (2006.01) C07C 67/38 (2006.01) C07C 231/14 (2006.01) C07C 233/09 (2006.01) C07C 327/22 (2006.01)

Patent

CA 2072827

The invention relates to a continuous process for the carbony- lation of an acetylenically unsaturated compound by reaction with carbon monoxide and a nucleophilic compound having a mobile hydrogen atom in the presence of a carbonylation catalyst, which process comprises the steps of: charging said carbonylation catalyst to a reaction zone; supplying a fresh feed containing said acetylenically unsaturated compound, said nucleophilic compound as well as carbon monoxide to said reaction zone; passing the feed through the reaction zone under carbonylating conditions of pressure and temperature such that a degree of conversion, based on the acetylenically unsaturated compound, of at least 80% is effected; separating a stream containing unreacted acetylenically unsaturated compound from the effluent of the reaction zone; and recycling the unreacted acetylenically unsaturated compound content of said separated stream to the reaction zone.

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