发明名称 |
Purification of chemical 1,3-propanediol |
摘要 |
Disclosed is a process comprising contacting chemical 1,3-propanediol with hydrogen in the presence of a hydrogenation catalyst. Preferably, the chemical 1,3-propanediol, before the contacting has an initial color and, after the contacting, has a color that is lower than the initial color.
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申请公布号 |
US7038092(B2) |
申请公布日期 |
2006.05.02 |
申请号 |
US20050203029 |
申请日期 |
2005.08.12 |
申请人 |
E. I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
SUNKARA HARI BABU;SEAPAN MAYIS;DIFFENDALL GEORGE F.;AMES TYLER T. |
分类号 |
C07C29/74;C07C29/80;C07C29/88;C07C29/90;C07C43/11;C07C43/13 |
主分类号 |
C07C29/74 |
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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