公开(公告)号：US5442108A

公开(公告)日：1995-08-15

申请号：US208667

申请日：1994-03-11

申请人： Tatsuya Kawajiri ,  Hideyuki Hironaka ,  Kazuyuki Uekawa ,  Michio Tanimoto ,  Hiromi Yunoki ,  Tsuyoshi Kudoh

发明人： Tatsuya Kawajiri ,  Hideyuki Hironaka ,  Kazuyuki Uekawa ,  Michio Tanimoto ,  Hiromi Yunoki ,  Tsuyoshi Kudoh

IPC分类号： B01J23/88 ,  B01J23/92 ,  B01J23/94 ,  B01J38/06 ,  B01J38/12 ,  C07B61/00 ,  C07C51/21 ,  C07C51/487 ,  C07C57/05 ,  C07C57/055 ,  C07C57/07 ,  C07C51/16

CPC分类号： C07C51/487 ,  B01J23/94 ,  B01J38/06 ,  B01J38/12 ,  Y02P20/584

摘要： A process for removal of solid organic matters formed and deposited in the reaction system when an unsaturated aldehyde or an unsaturated aidehyde-containing gas is subjected to catalytic gaseous oxidation in the presence of an oxidizing catalyst to prepare an unsaturated carboxylic acid corresponding thereto, which process comprises contacting the solid organic matters with a mixed gas containing at least 3 volume % of molecular oxygen and at least 0.1 volume % of steam at a temperature of 260.degree. to 450.degree. C.

摘要翻译： 当在氧化催化剂存在下使不饱和醛或不饱和含酐气体进行催化气体氧化以制备与其相对应的不饱和羧酸时，去除在反应体系中形成和沉积的固体有机物质的方法， 包括在260-450℃的温度下使固体有机物质与含有至少3体积％分子氧和至少0.1体积％蒸汽的混合气体接触。