发明名称 |
Purification of 3-hydroxy-propanal |
摘要 |
Cobalt or rhodium carbonyl compounds are removed from an aqueous solution of 3-hydroxypropanal by a process comprising the steps of: (a) contacting the 3-hydroxypropanal solution with oxygen under acidic conditions at a temperature within the range of about 5 to about 45 DEG C. to produce an oxidation product mixture comprising an aqueous solution of 3-hydroxypropanal, one or more water-soluble cobalt or rhodium species, and byproduct carbon monoxide; (b) removing byproduct carbon monoxide from the oxidation product mixture as it is generated; and (c) passing the oxidation product mixture in contact with an acidic ion exchange resin maintained at a temperature less than about 45 DEG C. and removing at least a portion of the soluble metal compounds from the oxidation product mixture. Such a process is useful in, for example, the manufacture of 1,3-propanediol from ethylene oxide via an intermediate 3-hydroxypropanal solution containing residual carbon dioxide and insoluble cobalt or rhodium catalyst compounds.
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申请公布号 |
US5986145(A) |
申请公布日期 |
1999.11.16 |
申请号 |
US19980138314 |
申请日期 |
1998.08.21 |
申请人 |
SHELL OIL COMPANY |
发明人 |
POWELL, JOSEPH BROUN;WEIDER, PAUL RICHARD;BLACKBOURN, ROBERT LAWRENCE;MULLIN, STEPHEN BLAKE |
分类号 |
B01J31/40;C07C45/58;C07C45/79;C07C45/85;(IPC1-7):C07C45/00 |
主分类号 |
B01J31/40 |
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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