发明名称 |
PROCESS FOR PRODUCING (METH)ACRYLIC ACID AND (METH)ACRYLIC ESTER |
摘要 |
<p>There is provided a process for producing (meth)acrylic acid and (meth)acrylic esters, which can be operated in a continuous and stable manner for a long period of time. In a process for producing (meth)acrylic acid and (meth)acrylic esters comprising the steps of (A) reacting propane, propylene, or isobutylene and/or (meth)acrolein, with molecular oxygen or a molecular oxygen-containing gas by gas-phase catalytic oxidation method to produce crude (meth)acrylic acid; (B) purifying the resultant crude (meth)acrylic acid to produce a (meth)acrylic acid product; and (C) reacting the crude (meth)acrylic acid with alcohol to produce (meth)acrylic esters,
in case of stopping a plant used in any one of the steps (B) and (C) disposed in parallel with each other, a resultant surplus crude (meth)acrylic acid being temporarily stored in a tank, and after restoring the stopped plant, the crude (meth)acrylic acid stored in a tank being fed to the plant used in the step (B) and/or the plant used in the step (C),
wherein a production capacity of the plant used in the step (A) is designed so as to be lower than a total consumption capacity of the plants used in the steps (B) and (C).</p> |
申请公布号 |
EP1749813(B1) |
申请公布日期 |
2014.01.08 |
申请号 |
EP20040792838 |
申请日期 |
2004.10.22 |
申请人 |
MITSUBISHI CHEMICAL CORPORATION |
发明人 |
YADA, SHUHEI;TAKASAKI, KENJI;OGAWA, YASUSHI;SUZUKI, YOSHIRO |
分类号 |
B01D3/14;B01D3/32;B01J19/00;C07B61/00;C07C51/16;C07C51/215;C07C51/235;C07C51/25;C07C51/44;C07C57/04;C07C57/05;C07C67/08;C07C69/52;C07C69/54 |
主分类号 |
B01D3/14 |
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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