发明名称 |
PROCESS FOR REMOVING A COBALT OR RHODIUM CARBONYL COMPOUND FROM AN AQUEOUS 3-HYDROXYPROPANAL SOLUTION |
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 temperatur e within the range of about 5 to about 45 ~C to produce an oxidation product mixture comprising an aqueous solution of 3-hydroxypropanal, one or more wat er- soluble cobalt or rhodium species, and byproduct carbon monoxide; (b) removi ng 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 ~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 |
CA2346827(A1) |
申请公布日期 |
2000.04.20 |
申请号 |
CA19982346827 |
申请日期 |
1998.10.12 |
申请人 |
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. |
发明人 |
WEIDER, PAUL RICHARD;BLACKBOURN, ROBERT LAWRENCE;POWELL, JOSEPH BROUN;MULLIN, STEPHEN BLAKE |
分类号 |
B01J31/40;B01J39/08;C07C29/141;C07C29/16;C07C45/58;C07C45/79;C07C45/85;C07C47/19;(IPC1-7):C07C45/85 |
主分类号 |
B01J31/40 |
代理机构 |
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地址 |
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