Maruzen Petrochemical Company, Limited

Kazuhiro Imanishi

Goro Sawada

Hideki Omori

Hideo Fukuda

The present invention provides a process for producing an acetylenediol continuously by reacting a ketone with acetylene in the presence of an alkali catalyst, which process comprises continuously feeding, into a first-stage reactor, a reaction solvent, an alkali catalyst, a ketone and acetylene to give rise to a reaction, continuously introducing the reaction mixture into a second-stage reactor, and continuously feeding a fresh portion of the same ketone into the second-stage reactor to give rise to a reaction.

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Ichihara, Japan

Kazuhiro Imanishi