METHOD FOR PRODUCING (METH)ACRYLIC ACID COMPOUNDS

申请公布号：JP2003261492(A)

申请号：JP20020065532

申请日期：2002.03.11

申请公布日期：2003.09.16

申请人：

MITSUBISHI CHEMICALS CORP

发明人：YADA SHUHEI;HOSAKA HIROCHIKA;JINNO KIMIKATSU

分类号：C07B61/00;C07C45/33;C07C45/35;C07C47/22;C07C51/215;C07C51/25;C07C57/05;(IPC1-7):C07C45/35

主分类号：C07B61/00

摘要：PROBLEM TO BE SOLVED: To provide a method for producing a (meth)acrylic compound, comprising the catalytic gas phase oxidation of a raw material-mixed gas, by which the change in the composition of the raw material-mixed gas, an abnormal temperature rise in an oxidation reactor, and the deterioration in the activity and life of a catalyst can be prevented to stably and efficiently produce the (meth)acrylic acid compound. SOLUTION: This method for applying a catalytic gas phase oxidation reaction to the raw material-mixed gas, especially propylene, propane or isobutylene, in the oxidation reactor to produce the (meth)acrolein or (meth)acrylic acid is characterized by maintaining the temperature of the raw material-mixed gas introduced into the oxidation reactor to a higher temperature than the dew point temperature of the raw material-mixed gas. COPYRIGHT: (C)2003,JPO

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