Heterogeneously catalyzed partial gas phase oxidation of acrolein to acrylic acid
    12.
    发明授权
    Heterogeneously catalyzed partial gas phase oxidation of acrolein to acrylic acid 有权
    丙烯醛的异相催化部分气相氧化成丙烯酸

    公开(公告)号:US06982347B2

    公开(公告)日:2006-01-03

    申请号:US10806460

    申请日:2004-03-23

    IPC分类号: C07C51/235

    CPC分类号: C07C51/252 C07C57/04

    摘要: In a process for partially oxidizing acrolein to acrylic acid in the gas phase under heterogeneous catalysis, the starting reaction gas mixture is oxidized at an acrolein loading of ≦145 and ≧70 l (STP) of acrolein/l of fixed catalyst bed·h over a fixed catalyst bed which is accommodated in two successive reaction zones A, B, the highest temperature of the reaction gas mixture within reaction zone A being above the highest temperature of the reaction gas mixture within reaction zone B.

    摘要翻译: 在非均相催化下在气相中将丙烯醛部分氧化为丙烯酸的方法中,起始反应气体混合物以丙烯醛负载<= 145和> = 70l(STP)的丙烯醛/ l固定催化剂床进行氧化。 h在固定的催化剂床上,其被容纳在两个连续的反应区A,B中,反应区A内的反应气体混合物的最高温度高于反应区B内的反应气体混合物的最高温度。

    Heterogeneous catalyst for the preparation of acrolein by partial gas phase oxidation of propene
    19.
    发明授权
    Heterogeneous catalyst for the preparation of acrolein by partial gas phase oxidation of propene 有权
    通过丙烯的部分气相氧化制备丙烯醛的非均相催化剂

    公开(公告)号:US07772148B2

    公开(公告)日:2010-08-10

    申请号:US11627573

    申请日:2007-01-26

    摘要: An annular unsupported catalyst for the heterogeneously catalyzed partial gas phase oxidation of propene to acrolein at a propene hourly space velocity on the fixed catalyst bed of ≧120 1 (STP)/1·h and a total CO2 and saturated hydrocarbon content of the starting reaction gas mixture of below 15 mol %, the catalysts of the fixed catalyst bed are the annular unsupported catalysts whose active composition is a multimetal oxide in which the molar Co/Fe ratio=from 2 to 4 and the molar Co/Mo ratio=from 0.3 to 0.7.

    摘要翻译: 一种环状无载体催化剂,用于丙烯到丙烯醛的非均相催化部分气相氧化,丙烯醛在固定催化剂床上的丙烯小时空速为≥1201(STP)/ 1·h,起始反应的总CO 2和饱和烃含量为 低于15mol%的气体混合物,固定催化剂床的催化剂是环状无载体催化剂,其活性组成是多金属氧化物,其中Co / Fe比为2-4,Co / Mo摩尔比为0.3 至0.7。