Title:
1,3-プロパンジオールを製造する方法
Document Type and Number:
Japanese Patent JP3844781
Kind Code:
B2
Abstract:
A process for preparing 1,3-propanediol comprises the steps of: (a) reacting a cobalt salt selected from at least one of cobalt hydroxide, cobalt (II, III) oxide and cobalt carbonate with synthesis gas in an essentially non-water-miscible liquid medium under conditions effective to produce a cobalt carbonyl reaction product comprising at least one active cobalt carbonyl hydroformylation catalyst species; (b) contacting ethylene oxide with synthesis gas in an essentially non-water miscible liquid medium in the presence of a catalytic amount of the cobalt carbonyl reaction product mixture and an effective amount of a catalyst promoter under reaction conditions effective to produce an intermediate product mixture comprising less than 15 wt % 3-hydroxypropanal; (c) adding an aqueous liquid to said intermediate product mixture and extracting into said aqueous liquid a major portion of the 3-hydroxypropanal so as to provide an aqueous phase comprising 3-hydroxypropanal in greater concentration than the concentration of 3-hydroxypropanal in the intermediate product mixture, and an organic phase comprising a major portion of the cobalt carbonyl; (d) separating the aqueous phase from the organic phase; (e) returning at least a major portion of the organic phase to the process of step (b); (f) contacting the aqueous phase comprising 3-hydroxypropanal with hydrogen in the presence of a hydrogenation catalyst under hydrogenation conditions to provide a hydrogenation product mixture comprising 1,3-propanediol; and (g) recovering 1,3-propanediol from the hydrogenation product mixture.
Inventors:
Lamb, Cayette Tan
Powell, Yosif Brown
Wader, paul richard yard
Powell, Yosif Brown
Wader, paul richard yard
Application Number:
JP51706397A
Publication Date:
November 15, 2006
Filing Date:
October 28, 1996
Export Citation:
Assignee:
Ciel International Research Mart Shats Pay BV
International Classes:
B32B3/12; C07C29/16; B01J31/20; B01J35/04; B32B3/28; C07C29/141; C07C31/20; C07C45/58; C07C45/80; C07C47/19; F01N3/20; F01N3/28
Domestic Patent References:
| JP8507048A |
Attorney, Agent or Firm:
Yoshio Kawaguchi
Naoya Fushimi
Naoya Fushimi
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