发明名称 |
Process for preparing alkanediols |
摘要 |
An alkanediol such as 1,3-propanediol is prepared in a process which involves reacting an alkylene 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 ruthenium promoter to produce an intermediate product mixture containing a hydroxyalkanal in an amount less than 15 wt %; extracting the hydroxyalkanal from the intermediate product mixture into an aqueous liquid at a temperature less than about 100 DEG C. and separating the aqueous phase containing hydroxyalkanal from the organic phase containing cobalt catalyst; hydrogenating the hydroxyalkanal in the aqueous phase to an alkanediol; and recovering the alkanediol. The process enables the production of an alkanediol such as 1,3-propanediol in high yields and selectivity without the use of a phosphine ligand-modified cobalt catalyst.
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申请公布号 |
US5841003(A) |
申请公布日期 |
1998.11.24 |
申请号 |
US19960685173 |
申请日期 |
1996.07.23 |
申请人 |
SHELL OIL COMPANY |
发明人 |
SLAUGH, LYNN HENRY;WEIDER, PAUL RICHARD;POWELL, JOSEPH BROUN |
分类号 |
C07C29/141;C07C45/58;(IPC1-7):C07C27/00 |
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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