A process for producing unsaturated aldehydes and unsaturated carboxylic acids
    7.
    发明公开
    A process for producing unsaturated aldehydes and unsaturated carboxylic acids 有权
    一种用于不饱和醛和不饱和羧酸的制备方法

    公开(公告)号:EP1156027A1

    公开(公告)日:2001-11-21

    申请号:EP01304403.7

    申请日:2001-05-18

    摘要: A process of producing unsaturated aldehydes and unsaturated carboxylic acids by vapor-phase catalytic oxidation of one or more compounds selected from propylene, isobutylene, t-butanol and methyl-t-butyl ether with molecular oxygen or molecular oxygen-containing gas, using a fixed bed shell-and-tube type reactor filled with shaped catalysts, which process is characterized in that plural shaped catalysts, which differ in: [I] content of inert component and [II] one or more of (a) occupation volume, (b) kind of alkali metal(s) present, (c) amount of alkali metal(s) present and (d) calcining temperature, are used in each of the reaction tubes such that the catalytic activity level rises from the reactant gas-inlet side of each reaction tube toward the outlet side.

    摘要翻译: 通过从丙烯,异丁烯,叔丁醇和用分子氧或含分子氧的气体甲基 - 叔丁基醚中的一种或多种化合物的气相催化氧化生产不饱和醛和不饱和羧酸,使用固定的方法 填充成形催化剂床壳管式反应器,该方法的特征DASS多个成形催化剂,其中分化:惰性组分和ÄIIÜ一个或多个(a)中占据体积的AIU含量,(b)种碱 金属(多个)存在,(c)中的碱金属(或多个)本和(d)煅烧温度的量,在测试的每个反应管的使用没有催化活性水平由每个反应管的反应气体入口侧上升 朝向出口侧。