发明名称 |
REDUCTION OF THE VISCOSITY OF REACTIVE HEAVY BYPRODUCTS DURING THE PRODUCTION OF 1,3-PROPANEDIOL |
摘要 |
The present invention is an improvement upon the process for the production of 1,3-propanediol wherein an aqueous solution of 3-hydroxy propanal is formed, catalyst, if any, used in said formation is removed from the solution, sodiu m hydroxide is added to the solution to neutralize any acid therein such that the pH is at least 5, the neutralized aqueous solution is subjected to hydrogenation to produce a crude 1,3-propanediol mixture which is distilled to produce 1,3-propanediol, water, and reactive heavy components. The improveme nt on this process comprises replacing the sodium hydroxide with a hydroxide selected from the group consisting of ammonium hydroxide, alkali metal hydroxides other than sodium hydroxide, and alkaline earth metal hydroxides to reduce the viscosity of the reactive heavy components.
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申请公布号 |
CA2500615(A1) |
申请公布日期 |
2004.04.15 |
申请号 |
CA20032500615 |
申请日期 |
2003.10.02 |
申请人 |
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. |
发明人 |
KOMPLIN, GLENN CHARLES;WEIDER, PAUL RICHARD;NIELSEN, EDWARD LEWIS;KNIFTON, JOHN FREDERICK;POWELL, JOSEPH BROUN;JAMES, TALMADGE GAIL |
分类号 |
C07C29/14;C07C29/141;C07C45/58;(IPC1-7):C07C29/14;C07C31/20 |
主分类号 |
C07C29/14 |
代理机构 |
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