发明名称 |
Process for preparing aliphatic monocarboxylic acid ester of hydroxymethyl-substituted monoaromatic compound |
摘要 |
Disclosed is a vapor phase catalytic oxidation process for preparing an aliphatic carboxylic acid ester of a monoaromatic compound having 1 to 2 hydroxymethyl substituents, such as benzyl acetate, p-methylbenzyl acetate, p-xylylenediacetate, benzyl propionate and benzyl butyrate. A gaseous feed comprised of a benzene compound having 1 to 2 methyl substituents, an aliphatic monocarboxylic acid having 2 to 4 carbon atoms and molecular oxygen is contacted with an improved catalyst. The metal ingredients of the catalyst consist essentially of (a) palladium, (b) arsenic and (c) at least one metal selected from alkali metals and alkali earth metals, and the atomic ratio of palladium:arsenic:the alkali or alkali earth metal is 1:0.05-4:0.1-10.
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申请公布号 |
US4224456(A) |
申请公布日期 |
1980.09.23 |
申请号 |
US19780908732 |
申请日期 |
1978.05.23 |
申请人 |
UBE INDUSTRIES, LTD. |
发明人 |
UMEMURA, SUMIO;MATSUI, KANENOBU;KOGA, KUNITOSHI;KUNIYOSHI, MINEO |
分类号 |
C07C69/035;B01J23/00;C07B61/00;C07C69/025;C07C69/12;C07C69/157;(IPC1-7):C07C67/05 |
主分类号 |
C07C69/035 |
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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