发明名称 |
Method For Producing Unsaturated Aldehyde And/or Unsaturated Carboxylic Acid |
摘要 |
Provided is a method of subjecting an alkene to partial oxidation by using a fixed bed multitubular reactor, thereby producing an unsaturated aldehyde and/or an unsaturated carboxylic acid each corresponding to the alkene, wherein a plurality of catalyst layers formed by N division (N is N≧2) with respect to a gas flow direction of a reaction tube are provided, and when a change (° C.) of hot spot temperature per 1° C. change of reaction bath temperature in the catalyst layer is designated as Sn, at least one of the plurality of catalyst layers is regulated to Sn≦6. |
申请公布号 |
US2016145180(A1) |
申请公布日期 |
2016.05.26 |
申请号 |
US201414903410 |
申请日期 |
2014.07.17 |
申请人 |
NIPPON KAYAKU KABUSHIKI KAISHA |
发明人 |
KAWAMURA Tomoyuki;KURAKAMI Tatsuhiko;NAKAZAWA Yuuta;KAWAGUCHI Toru;SUGIYAMA Motohiko |
分类号 |
C07C51/16;C07C45/27 |
主分类号 |
C07C51/16 |
代理机构 |
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代理人 |
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主权项 |
1. A method for producing an unsaturated aldehyde and/or an unsaturated carboxylic acid, which is a method for producing an unsaturated aldehyde and/or an unsaturated carboxylic acid each corresponding to an alkene by partially oxidizing the alkene using a fixed bed multitubular reactor,
wherein a plurality of catalyst layers formed by N division (N is N≧2) with respect to a gas flow direction of a reaction tube are provided, and when a change (° C.) of hot spot temperature per 1° C. change of reaction bath temperature in the catalyst layer is designated as Sn, at least one of the plurality of catalyst layers is regulated to Sn≦6. |
地址 |
Chiyoda-ku, Tokyo JP |