发明名称 |
Process for forming vinyl ester from carboxylic acid with water treatment of thereaction mixture |
摘要 |
<p>A process is disclosed for forming a vinyl ester from a carboxylic acid and acetylene in the presence of a zinc carboxylate catalyst, wherein a mixture of carboxylic acid and zinc carboxylate catalyst is formed and the water content of the mixture is reduced to between about 0.02 wt. % and about 0.3 wt. %, prior to introduction of the acetylene into the reactor. Optionally, water is introduced into the reactor during the reaction to hydrate any anhydride by-product of the reaction present in the reactor to carboxylic acid reactant. Water is added during the reaction in an amount that is sufficient to convert the anhydride by-product to carboxylic acid reactant, but does not raise the amount of water in the reaction mixture to a level that will reduce the reactivity of the catalyst or reduce the rate of the vinylation reaction.</p> |
申请公布号 |
AU9793398(A) |
申请公布日期 |
1999.05.24 |
申请号 |
AU19980097933 |
申请日期 |
1998.10.08 |
申请人 |
EXXON CHEMICAL PATENTS INC. |
发明人 |
KYLAN L. TANNER;CHARLES M. YARBROUGH |
分类号 |
C07C67/04;(IPC1-7):C07C67/04;C07C67/00;C07C69/01 |
主分类号 |
C07C67/04 |
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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