发明授权
US07276634B2 Reduction of the viscosity of reactive heavy byproducts during the production of 1,3-propanediol
失效
在1,3-丙二醇生产过程中降低反应性重副产物的粘度
- 专利标题： Reduction of the viscosity of reactive heavy byproducts during the production of 1,3-propanediol
- 专利标题（中）： 在1,3-丙二醇生产过程中降低反应性重副产物的粘度
-
申请号： US10676682申请日： 2003-10-01
-
公开(公告)号： US07276634B2公开(公告)日： 2007-10-02
- 发明人: John Frederick Knifton , Talmadge Gail James , Paul Richard Weider , Joseph Broun Powell , Edward Lewis Nielsen , Glenn Charles Komplin
- 申请人： John Frederick Knifton , Talmadge Gail James , Paul Richard Weider , Joseph Broun Powell , Edward Lewis Nielsen , Glenn Charles Komplin
- 申请人地址： US TX Houston
- 专利权人： Shell Oil Company
- 当前专利权人： Shell Oil Company
- 当前专利权人地址： US TX Houston
- 主分类号： C07C27/10
- IPC分类号： C07C27/10
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, sodium hydroxide is added to the solution to neutralize any acid therein such that the pH is at least about 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 improvement 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.
公开/授权文献
信息查询
