Invention Grant
US06297408B1 Two-stage process for the production of 1,3-propanediol by catalytic hydrogenation of 3-hydroxypropanal
失效
通过3-羟基丙醛的催化氢化生产1,3-丙二醇的两阶段方法
- Patent Title: Two-stage process for the production of 1,3-propanediol by catalytic hydrogenation of 3-hydroxypropanal
- Patent Title (中): 通过3-羟基丙醛的催化氢化生产1,3-丙二醇的两阶段方法
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Application No.: US09786501Application Date: 2001-03-02
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Publication No.: US06297408B1Publication Date: 2001-10-02
- Inventor: Thomas Haas , Bernd Jaeger , Joerg Sauer , Willi Hofen , Rudolf Vanheertum
- Applicant: Thomas Haas , Bernd Jaeger , Joerg Sauer , Willi Hofen , Rudolf Vanheertum
- Main IPC: C07C2704
- IPC: C07C2704
Abstract:
A two-stage process for producing 1,3-propanediol by first hydrogenating at a temperature of 30° C. to 80° C. in the presence of an oxide-supported metal hydrogenation catalyst. Second, the resulting reaction solution is hydrogenated at a temperature of 80° C. to 180° C. to a 3-hydroxypropanal conversion of substantially 100% in the presence of an activated carbon-supported metal hydrogenation catalyst.
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