Title:
水和助触媒の存在下における3-ヒドロキシプロパナールの接触水素化による1,3-プロパンジオールの製造方法
Document Type and Number:
Japanese Patent JP2007507545
Kind Code:
A
Abstract:
A process for preparing 1,3-propanediol comprising the steps of: (a) preparing an aqueous mixture of 3-hydroxypropanal, (b) passing said aqueous 3-hydroxypropanal mixture to a hydrogenation zone wherein the hydrogenation zone is comprised of at least two stages wherein the hydrogenation in the first stage is carried out under hydrogenation conditions at a temperature in the range of about 50 to about 130° C. in the presence of a fixed bed or slurry hydrogenation catalyst and wherein an acidic co-catalyst is added or present in at least one of the later stages and the hydrogenation in said later stages is carried out under hydrogenation conditions at a higher temperature than that of the first hydrogenation stage and in the range of about 70 to about 155° C. to form an aqueous solution of 1,3-propanediol; and (c) recovering said 1,3-propanediol.
Inventors:
Comparin, Glen Chillards
Powell, Joseph Brown
Wader, paul richard yard
Powell, Joseph Brown
Wader, paul richard yard
Application Number:
JP2006534254A
Publication Date:
March 29, 2007
Filing Date:
October 05, 2004
Export Citation:
Assignee:
Ciel International Research Mart Shats Pay BV
International Classes:
C07C29/141; C07C31/20; C07B61/00
Attorney, Agent or Firm:
Yoshio Kawaguchi
Makoto Ono
Chihiro Watanabe
Kenkyo Kanayama
Katsuma Osaki
Mitsuaki Tsubokura
Makoto Ono
Chihiro Watanabe
Kenkyo Kanayama
Katsuma Osaki
Mitsuaki Tsubokura