发明名称 |
Method of manufacturing (meth)acrylic acid |
摘要 |
A method of manufacturing (meth)acrylic acid includes: a reaction step of carrying out a catalytic gas-phase oxidation reaction; an absorbing step of absorbing (meth)acrylic acid from a (meth)acrylic-acid-containing mixed gas prepared in the reaction step; a refinement step of separating, refining, and recovering (meth)acrylic acid from a (meth)acrylic-acid-containing liquid prepared in the absorbing step; and a recirculation step of recirculating (meth)acrylic acid contained in a vent gas produced in the refinement step to the absorbing step and/or the refinement step. <IMAGE> |
申请公布号 |
EP1059281(B1) |
申请公布日期 |
2005.07.20 |
申请号 |
EP20000111673 |
申请日期 |
2000.05.31 |
申请人 |
NIPPON SHOKUBAI CO., LTD. |
发明人 |
NISHIMURA, TAKESHI;MATSUMOTO, YUKIHIRO |
分类号 |
C07C51/42;B01D3/00;B01D3/14;B01D53/14;C07C51/25;C07C51/44;C07C57/05;C07C57/07 |
主分类号 |
C07C51/42 |
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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