Patents Examined by E. O. Irzinski
  • Process for production of sec-butylbenzene
    Patent number: 5059736
    Abstract: A process for production of sec-butylbenzene from benzene and n-butene in the presence of a liquid aluminum chloride complex catalyst is disclosed, wherein the amount of aluminum chloride used as a component of the complex catalyst is from 0.3 to 5 wt % of the benzene used, the reaction temperature is from 20.degree. to 90.degree. C., and the weight ratio of isobutylbenzene formed as a by-product to sec-butylbenzene formed is not more than 0.01:1.
    Type: Grant
    Filed: April 24, 1990
    Date of Patent: October 22, 1991
    Assignee: Sumitomo Chemical Co., Ltd.
    Inventors: Mitsuhisa Tamura, Kazuhiro Yamauchi, Yasuhiko Higashio, Kazuteru Takahashi