Patents by Inventor Adrian P. Humphries

Adrian P. Humphries has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Dealumination of faujasite-type zeolites using ion exchange resins
    Patent number: 4512961
    Abstract: Faujasite-type zeolites of high catalytic activity, low coke-forming property and stable crystalline structure are prepared by using a combination of hydrothermal treatment and ion exchange resin removal of aluminum from the crystalline structure of the zeolites. The process allows for a substantial increase of the silica-to-alumina ratio in the zeolite without detrimentally affecting the strength of the structure.
    Type: Grant
    Filed: August 22, 1983
    Date of Patent: April 23, 1985
    Assignee: Harshaw/Filtrol
    Inventors: Julius Scherzer, Adrian P. Humphries
  • Use of additional alumina for extra zeolite stability in FCC catalyst
    Patent number: 4325847
    Abstract: This invention relates to improvements in catalysts formed by spray drying water slurries of a faujasite type zeolite of relatively low sodium content in a matrix, containing pseudoboehmite and added anionically derived alumina gel.
    Type: Grant
    Filed: June 19, 1980
    Date of Patent: April 20, 1982
    Assignee: Filtrol Corporation
    Inventors: John C. Lim, Adrian P. Humphries, Dennis M. Stamires