发明名称 |
A PROCESS FOR THE PRODUCTION OF DIENES FROM ALDEHYDES |
摘要 |
This invention is directed to a process for the conversion of an aldehyde to a diolefin comprising contacting an aldehyde of 4 to 6 carbon atoms in the vapor phase at a temperature of 300 DEG to 400 DEG C. with a catalyst comprising boron phosphate wherein the initial molar ratio of phosphorous (P) to boron (B) (P/B) is less than 1.0 but greater than 0.6 which is in intimate admixture with from 0.1 to 10 weight percent graphite. More specifically, this invention is concerned with a process for the catalytic dehydration of 2-methylbutanal (2MBA) to isoprene in the vapor phase with a boron phosphate catalyst wherein the improvement comprises the use of a catalyst with a molar ratio of P/B of less than 1.0 but greater than 0.6 which contains from 0.1 to 10 weight percent graphite and 0 to 10 mole percent, based on moles of boron, of ammonia or an amine selected from the group consisting of mono-, di- and/or tri- alkyl amines of 1 to 10 carbon atoms. |
申请公布号 |
DE3567443(D1) |
申请公布日期 |
1989.02.16 |
申请号 |
DE19853567443 |
申请日期 |
1985.09.03 |
申请人 |
THE GOODYEAR TIRE & RUBBER COMPANY |
发明人 |
WIDEMAN, LAWSON GIBSON;HSU, WEN-LIANG;MALY, NEIL ARTHUR;MATRANS, BARRY ALLEN;STROZIER, ROBERT WILLIAM |
分类号 |
C07C11/18;B01J27/00;B01J27/16;C07B61/00;C07C1/00;C07C1/207;C07C1/24;C07C11/00;C07C11/12;C07C67/00 |
主分类号 |
C07C11/18 |
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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