Patents by Inventor Jan I. De Jong

Jan I. De Jong 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).

  • Process for the preparation of a resulfided catalyst
    Patent number: 5139990
    Abstract: Ex situ presulfidation of hydrotreating catalysts comprising impregnating the catalysts with an aqueous solution of an organic sulfur compound, e.g. the diammonium salt of 2,5-dimercapto-1,3,4-thiadiazole and 2,2'-dithiodiethanol, followed by drying of the impregnated material. The dried material is activated by contacting it with hydrogen gas at elevated temperature.
    Type: Grant
    Filed: March 20, 1991
    Date of Patent: August 18, 1992
    Assignee: Akzo NV
    Inventors: Jan I. de Jong, Ludwig Eisenhuth, Johannes W. F. M. Schoonhoven, Antonius J. van Hengstum
  • Fluid cracking process using sepiolite-containing catalyst composition
    Patent number: 4519897
    Abstract: There is disclosed a process for cracking a metal-containing feed in the presence of a fluid cracking catalyst composition comprising contacting said feed at catalytic cracking conditions with a catalyst composition comprising a zeolitic crystalline aluminosilicate, sepiolite and matrix material, characterized in that the sepiolite is present in non-dispersed form.
    Type: Grant
    Filed: December 20, 1983
    Date of Patent: May 28, 1985
    Assignee: AKZO nv
    Inventor: Jan I. De Jong