申请人:Devaux Jean-Francois
公开号:US09296676B2
公开(公告)日:2016-03-29
The present invention relates to the selective elimination of propanal in acrolein-rich streams to produce acrolein and/or acrylic acid and/or acrylonitrile and/or methylmercaptopropionaldehyde containing low amount of propanal and/or propionic acid and/or propionitrile. One subject of the present invention is a process for manufacturing acrolein comprising a step of selective elimination of propanal in an acrolein-rich stream in contact with a catalyst comprising at least molybdenum. Another subject of the present invention is a process for manufacturing acrylic acid from glycerol including a step of selective elimination of propanal in an acrolein-rich stream in contact with a catalyst comprising at least molybdenum.
本发明涉及在富含丙烯醛的流体中选择性消除丙酮醛,以生产含有低量丙酮醛和/或丙酸和/或丙烯腈和/或甲基巯基丙醛的丙烯醛和/或丙烯酸和/或丙烯腈。本发明的一个目的是提供一种制造丙烯醛的方法,包括在与至少钼组成的催化剂接触的丙烯醛富集流体中选择性消除丙酮醛的步骤。本发明的另一个目的是提供一种从甘油制造丙烯酸的方法,包括在与至少钼组成的催化剂接触的丙烯醛富集流体中选择性消除丙酮醛的步骤。