发明名称 |
PROCESS FOR MAKING 2,3-DIHALOPROPANOLS |
摘要 |
<p>A 2,3-dihalopropanol is made by reacting 2,3-dihalopropanal with a hydrogenating agent in the presence of a transition metal-containing catalyst, under conditions such that 2,3-dihalopropanol is formed. The reaction is particularly useful as Step (3) in a process to make epihalohydrin by: (1) reacting a 3-carbon hydrocarbon with an oxidizing agent to form acrolein; (2) reacting acrolein with a molecular halogen to form 2,3-dihalopropanal; (3) reducing 2,3-dihalopropanal to form 2,3-dihalopropanol; and (4) cyclizing 2,3-dihalopropanol to make epihalohydrin. The process produces epihalohydrin using only about one mole of halogen per mole of epihalohydrin. It also uses substantially less water than existing processes.</p> |
申请公布号 |
EP0918738(A1) |
申请公布日期 |
1999.06.02 |
申请号 |
EP19970929694 |
申请日期 |
1997.06.05 |
申请人 |
THE DOW CHEMICAL COMPANY |
发明人 |
THOMAS, P., J.;PEWS, R., GARTH;VOSEJPKA, PAUL, C.;FRYCEK, GEORGE, J. |
分类号 |
C07C29/141;C07C31/36;C07C45/35;C07C45/63;C07D301/26;(IPC1-7):C07C29/141;C07C45/34;C07C47/14;C07C47/22 |
主分类号 |
C07C29/141 |
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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