发明名称 |
Cobalt-catalyzed process for preparing 1,3-propanediol using a lipophilic bidentate phosphine promotor |
摘要 |
1,3-Propanediol is prepared in a process which involves reacting ethylene oxide with carbon monoxide and hydrogen in an essentially non-water-miscible solvent in the presence of a non-phosphine-ligated cobalt catalyst and a lipophilic bidentate phosphine promoter to produce an intermediate product mixture containing 3-hydroxypropanal in an amount less than 15 wt%; extracting the 3-hydroxypropanal from the intermediate product mixture into an aqueous liquid at a temperature less than about 100 DEG C. and separating the aqueous phase containing 3-hydroxypropanal from the organic phase containing cobalt catalyst; hydrogenating the 3-hydroxypropanal in the aqueous phase to 1,3-propanediol; and recovering the 1,3-propanediol. The process enables the production of 1,3-propanediol in high yield and selectivity without the use of a phosphine ligand-modified cobalt catalyst. |
申请公布号 |
US5545766(A) |
申请公布日期 |
1996.08.13 |
申请号 |
US19940316668 |
申请日期 |
1994.09.30 |
申请人 |
SHELL OIL COMPANY |
发明人 |
POWELL, JOSEPH B.;SLAUGH, LYNN H.;FORSCHNER, THOMAS C.;SEMPLE, THOMAS C.;WEIDER, PAUL R. |
分类号 |
C07C29/141;C07C29/16;C07C45/58;(IPC1-7):C07C29/36 |
主分类号 |
C07C29/141 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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