发明名称 |
Process for preparing a 1,3-alkandiol from 3-hydroxyester |
摘要 |
A process for preparing a 1,3-alkandiol from a 3-hydroxyester, comprises preparing a catalyst by adding an alkaline precipitator to an aqueous copper salt solution to form copper hydroxide particles, and aging the particles following the addition of a colloidal silica thereto; activating the catalyst by reduction with a H2 gas or a H2-containing gas and applying a pressure of about 5 psig to about 2000 psig at a temperature of about 100° C. to about 250° C. in the presence of an activation solvent; and hydrogenating a 3-hydroxyester in a liquid phase slurry with a H2 gas or a H2-containing gas and applying a pressure of about 50 psig to about 3000 psig at a temperature of about 100° C. to about 250° C. in the presence of the activated catalyst and a reaction solvent, whereby a 1,3-alkanediol can be selectively prepared from a 3-hydroxyester with a high yield.
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申请公布号 |
US6617478(B2) |
申请公布日期 |
2003.09.09 |
申请号 |
US20020212671 |
申请日期 |
2002.08.06 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD.;KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY |
发明人 |
LEE BYEONG NO;JUNG IN SUN;JANG EUN JOO;LEE JUNG HO;KIM HYUNG ROK;HAN YO HAN |
分类号 |
B01J21/08;B01J23/72;B01J23/889;B01J37/00;B01J37/03;B01J37/18;C07C29/149;(IPC1-7):C07C27/00;C07C27/04;C07C31/18;C07C29/00 |
主分类号 |
B01J21/08 |
代理机构 |
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