Patents Represented by Attorney, Agent or Law Firm Ralph A. Dowell
  • Method of producing dealuminized zeolite Y of high hydrophobicity
    Patent number: 5013700
    Abstract: Activated zeolite Y which has been dealuminized by treatment with gaseous halogen silane at a temperature of up to 600.degree. C., is washed with water, leached with acid and finally heat-treated at a temperature of 800.degree.-1100.degree. C.
    Type: Grant
    Filed: May 12, 1989
    Date of Patent: May 7, 1991
    Inventor: Lars Falth