Patents Examined by Lyma H. Smith
  • Oxirane production
    Patent number: 5698719
    Abstract: Oxirane compounds are formed by vapor phase catalytic molecular oxygen oxidation of a C.sub.3 -C.sub.10 olefin using a silver catalyst, and the selectivity to the oxirane product is enhanced by preconditioning the catalyst by contact with the olefin at elevated temperature in the absence of oxygen; oxygen is periodically pulsed to the reaction.
    Type: Grant
    Filed: October 11, 1996
    Date of Patent: December 16, 1997
    Assignee: Arco Chemical Tehnology, L.P.
    Inventors: Anne M. Gaffney, C. Andrew Jones, Rangasamy Pitchai, Andrew P. Kahn