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