Heterogeneously catalyzed partial gas phase oxidation of acrolein to acrylic acid
    2.
    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。