Patents Assigned to Filtrol Corporation
  • Patent number: 4388222
    Abstract: This invention relates to improvements in substrates containing alumina and a Group IV-B oxide and in producing the same and in processes of producing hydrodesulfurizing catalysts based on Group VIII and Group VI-B in the catalysts employing such substrates, and hydrodesulfurizing process employing the same.
    Type: Grant
    Filed: June 7, 1979
    Date of Patent: June 14, 1983
    Assignee: Filtrol Corporation
    Inventors: Geoffrey Wilson, Masami Kayamoto
  • Patent number: 4362652
    Abstract: This invention relates to the production of a cracking catalyst derived from hydrothermal treatment of an ammoniated silica-alumina gel, the alumina component of which is formulated from a mixture of anionic and cationic aluminum containing salts.
    Type: Grant
    Filed: July 8, 1981
    Date of Patent: December 7, 1982
    Assignee: Filtrol Corporation
    Inventors: Dennis Stamires, Hamid Alafandi
  • Patent number: 4356113
    Abstract: This invention relates to a process for production of catalyst substrates and catalysts of calibrated pore size distribution by incorporation in and removal of particles of determined particle size from substrate or catalyst formulations.
    Type: Grant
    Filed: November 17, 1980
    Date of Patent: October 26, 1982
    Assignee: Filtrol Corporation
    Inventors: John Lim, Michael Brady, Kirk Novak
  • Patent number: 4347164
    Abstract: A zeolite containing catalyst which is associated with finely dispersed metal is formed by decomposing a compound, whose anion contains a metal and a (CN) radical, which has been deposited on the host catalyst.
    Type: Grant
    Filed: December 8, 1980
    Date of Patent: August 31, 1982
    Assignee: Filtrol Corporation
    Inventor: Julius Scherzer
  • Patent number: 4333857
    Abstract: An improvement in abrasion resistance is obtained in zeolite compositions containing alumina and clay in a matrix by employing comminuted zeolites.
    Type: Grant
    Filed: March 17, 1980
    Date of Patent: June 8, 1982
    Assignee: Filtrol Corporation
    Inventors: John Lim, Michael Brady, Dennis Stamires
  • Patent number: 4332782
    Abstract: A pseudoboehmite having properties suitable for incorporation into a matrix for a zeolite containing catalyst and the process for producing the same from an aluminum sulfate derived gel.
    Type: Grant
    Filed: July 28, 1980
    Date of Patent: June 1, 1982
    Assignee: Filtrol Corporation
    Inventors: Julius Scherzer, Anh-Thu Liu
  • Patent number: 4325845
    Abstract: This invention relates to a method of producing a zeolite containing cracking catalyst by employing a sodium silicate derived silica gel in combination with clay to form a catalyst having a good attrition resistance, low carbon, and hydrogen forming properties.
    Type: Grant
    Filed: November 9, 1979
    Date of Patent: April 20, 1982
    Assignee: Filtrol Corporation
    Inventors: John Lim, Michael Brady
  • 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
  • Patent number: 4313923
    Abstract: Method of producing pseudoboehmite by reacting an aluminum salt with an aluminate.
    Type: Grant
    Filed: December 29, 1980
    Date of Patent: February 2, 1982
    Assignee: Filtrol Corporation
    Inventors: Thomas E. Block, Julius Scherzer
  • Patent number: 4310441
    Abstract: A silica-alumina gel derived from a cationic aluminum source and also an anionic aluminum source and processes for producing such gel.
    Type: Grant
    Filed: October 4, 1979
    Date of Patent: January 12, 1982
    Assignee: Filtrol Corporation
    Inventors: Hamid Alafandi, Dennis Stamires
  • Patent number: 4297325
    Abstract: The production process for pseudoboehmite from leach liquors produced in the acid treatment of clays, which liquors contain Fe and alkaline earth ions.
    Type: Grant
    Filed: December 8, 1980
    Date of Patent: October 27, 1981
    Assignee: Filtrol Corporation
    Inventors: Julius Scherzer, Anh-Thu Liu, Yih-Yau Sun
  • Patent number: 4269815
    Abstract: This invention relates to improvements in the processes of exchanging zeolites, particularly zeolites of the faujasite type to reduce their sodium content by a multiple exchange under autogenous superatmospheric pressure.
    Type: Grant
    Filed: May 23, 1980
    Date of Patent: May 26, 1981
    Assignee: Filtrol Corporation
    Inventors: John Lim, Warren Huang, Michael Brady
  • Patent number: 4264474
    Abstract: This invention relates to hydrothermal treatment of silica-alumina cogels resulting in a reduction in the NH.sub.4 content of the gel and the generation of a beta crystal phase and the employent of such gels as cracking catalysts.
    Type: Grant
    Filed: June 1, 1979
    Date of Patent: April 28, 1981
    Assignee: Filtrol Corporation
    Inventors: Hamid Alafandi, Dennis Stamires
  • Patent number: 4259210
    Abstract: This invention relates to catalysts containing crystalline alumino-silicate zeolite and hydrothermally treated silica-alumina cogels and the employment of the same as cracking catalysts.
    Type: Grant
    Filed: June 1, 1979
    Date of Patent: March 31, 1981
    Assignee: Filtrol Corporation
    Inventors: Hamid Alafandi, Dennis Stamires
  • Patent number: 4253989
    Abstract: The catalyst of this invention is composed of an exchanged zeolite of the faujasite type composited with a matrix composed of clay, alumina and silica added as sodium silicate, the added silica being in the range of about 0.5% to less than about 3.5% based on the composite catalyst on a volatile free basis.
    Type: Grant
    Filed: April 14, 1978
    Date of Patent: March 3, 1981
    Assignee: Filtrol Corporation
    Inventors: John Lim, Ralph M. Haney
  • Patent number: 4252684
    Abstract: This invention relates to alpha (Si, Al)O.sub.4 crystalline complex, and to silica-alumina gel and crystalline alumino silicate host containing said alpha (Si, Al)O.sub.4 complex; both gels and crystalline alumina silicates containing a novel crystalline phase resulting from the hydrothermal treatment of the host (Si, Al)O.sub.4 complexes, both amorphous gel and crystalline alumino silicates, in the presence of rare earth cations.
    Type: Grant
    Filed: June 1, 1979
    Date of Patent: February 24, 1981
    Assignee: Filtrol Corporation
    Inventors: Hamid Alafandi, Dennis Stamires
  • Patent number: 4246138
    Abstract: This invention relates to catalysts containing crystalline alumino-silicate zeolite, hydrothermally treated silica-alumina cogels and the employment of the same as cracking catalysts.
    Type: Grant
    Filed: January 16, 1979
    Date of Patent: January 20, 1981
    Assignee: Filtrol Corporation
    Inventors: Hamid Alafandi, Dennis Stamires
  • Patent number: 4240932
    Abstract: This invention relates to exchanged mordenite and catalysts employing the same.
    Type: Grant
    Filed: January 18, 1979
    Date of Patent: December 23, 1980
    Assignee: Filtrol Corporation
    Inventors: Hamid Alafandi, Dennis Stamires
  • Patent number: 4239651
    Abstract: This invention relates to exchanged ammoniated cogels having improved catalytic activity and process for producing the same.
    Type: Grant
    Filed: August 21, 1978
    Date of Patent: December 16, 1980
    Assignee: Filtrol Corporation
    Inventors: Hamid Alafandi, Dennis Stamires
  • Patent number: 4238360
    Abstract: This invention relates to hydrothermally treated silica-alumina cogels resulting in a reduction in the NH.sub.4 content of the gel and the employment of such gels as cracking catalysts.
    Type: Grant
    Filed: January 16, 1979
    Date of Patent: December 9, 1980
    Assignee: Filtrol Corporation
    Inventors: Hamid Alafandi, Dennis Stamires