Process for the production of cumene
    4.
    发明授权
    Process for the production of cumene 失效
    异丙苯生产工艺

    公开(公告)号:US4341913A

    公开(公告)日:1982-07-27

    申请号:US217736

    申请日:1980-12-19

    IPC分类号: C07C2/70 C07C2/68

    CPC分类号: C07C2/70 C07C2527/173

    摘要: Production of cumene by alkylation of benzene with propylene on a solid phosphoric acid catalyst, using a first step with a plurality of catalyst beds in series and a second step with a single catalyst bed, using an overall benzene/propylene molar ratio of at least 6:1, continuously delivering the benzene to the first bed, continuously delivering a series of streams of liquid propylene respectively to the first bed and, in the form of a cold stream, between each pair of contiguous beds, and using a benzene/propylene molar ratio higher than 16:1 at the inlet of each bed of the first step, and higher than 25:1 at the inlet of the bed of the second step.

    摘要翻译: 通过在固体磷酸催化剂上用丙烷烷基化苯来生产异丙苯,使用第一步,其中串联有多个催化剂床,第二步用单一催化剂床,使用总共苯/丙烯摩尔比为至少6 :1,将苯连续输送到第一床,分别将一系列液态丙烯流连续地输送到第一床,并以冷流的形式在每对连续的床之间,并使用苯/丙烯摩尔 比例在第一步骤的每个床的入口处高于16:1,并且在第二步骤的床的入口处高于25:1。