Patents by Inventor Stacey Zones

Stacey Zones 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).

  • Patent number: 6929789
    Abstract: The present invention relates to new crystalline molecular sieve SSZ-61 prepared using tetracyclic azonia cations as structure-directing agents, and methods for synthesizing SSZ-61.
    Type: Grant
    Filed: August 28, 2003
    Date of Patent: August 16, 2005
    Assignee: Chevron U.S.A. Inc.
    Inventors: Stacey Zones, Saleh Elomari
  • Publication number: 20050135998
    Abstract: The present invention relates to a method of preventing the intergrowth of an undesired porous crystalline phase during the preparation of a desired porous crystalline material comprising (1) an oxide of a first tetravalent element to (2) an oxide of a trivalent element, pentavalent element, second tetravalent element different from said first tetravalent element or mixture thereof, the method comprising contacting under crystallization conditions sources of said oxides, a structure directing agent capable of forming the desired porous crystalline material, and an amine too large to fit in the pores of the undesired porous crystalline phase.
    Type: Application
    Filed: December 23, 2003
    Publication date: June 23, 2005
    Inventors: Allen Burton, Stacey Zones
  • Publication number: 20050135999
    Abstract: Zeolites having the IFR structure and containing aluminum in their crystal structure can be made by preparing a reaction mixture comprising a zeolite which is an active source of aluminum oxide, an active source of alkali metal oxide, an active source of an oxide of a tetravalent element, an organic template selected from the group consisting of a 1-benzyl-4-aza-1-azonia-bicyclo[2.2.2]octane cation and a N-benzyl quinuclidinium cation, and maintaining the reaction mixture under conditions sufficient to form crystals of the zeolite.
    Type: Application
    Filed: November 5, 2004
    Publication date: June 23, 2005
    Inventors: Saleh Elomari, Stacey Zones
  • Publication number: 20050136000
    Abstract: The present invention relates to new crystalline molecular sieve SSZ-47B prepared using a N-cyclopentyl-1,4-diazabicyclo[2.2.2]octane cation as a structure-directing agent and an amine too large to fit in the pores of the molecular sieve nonasil, methods for synthesizing SSZ-47B and processes employing SSZ-47B in a catalyst.
    Type: Application
    Filed: December 23, 2003
    Publication date: June 23, 2005
    Inventors: Allen Burton, Stacey Zones
  • Publication number: 20050133413
    Abstract: The present invention relates to new crystalline molecular sieve SSZ-47B prepared using a N-cyclopentyl-1,4-diazabicyclo[2.2.2] octane cation as a structure-directing agent and an amine too large to fit in the pores of the molecular sieve nonasil, methods for synthesizing SSZ-47B and processes employing SSZ-47B in a catalyst.
    Type: Application
    Filed: December 23, 2003
    Publication date: June 23, 2005
    Inventors: Allen Burton, Stacey Zones
  • Publication number: 20050092651
    Abstract: The invention is directed to a method of making a small crystal SSZ-32 zeolite, known as SSZ-32X. The catalyst is suitable for use in a process whereby a feed including straight chain and slightly branched paraffins having 10 or more carbon atoms is dewaxed to produce an isomerized product, with increased yield of isomerized material and decreased production of light ends.
    Type: Application
    Filed: October 31, 2003
    Publication date: May 5, 2005
    Inventors: Stacey Zones, Guang Zhang, Kamala Krishna, Joseph Biscardi, Paul Marcantonio, Euthimios Vittoratos
  • Publication number: 20050090389
    Abstract: A novel crystalline aluminophosphate and metalloaluminophosphate of the molecular sieve type, denominated SSZ-51, is prepared by hydrothermal synthesis from reactive sources of aluminum and phosphorus, fluorine and an organic templating agent, 4-dimethylaminopyridine.
    Type: Application
    Filed: October 22, 2003
    Publication date: April 28, 2005
    Inventors: Stacey Zones, Allen Burton, Thomas Harris, Lucy Bull
  • Publication number: 20050087478
    Abstract: A novel crystalline aluminophosphate and metalloaluminophosphate of the molecular sieve type, denominated SSZ-51, is prepared by hydrothermal synthesis from reactive sources of aluminum and phosphorus, fluorine and an organic templating agent, 4-dimethylaminopyridine. SSZ-51 is useful in catalysts for, e.g., hydrocarbon conversion reactions.
    Type: Application
    Filed: October 22, 2003
    Publication date: April 28, 2005
    Inventors: Stacey Zones, Thomas Harris
  • Patent number: 6881323
    Abstract: The present invention relates to new crystalline zeolite SSZ-54 prepared using a templating agent comprising N-isopropyl ethylenediamine, or a mixture of 1-N-isopropyl diethylenetriamine and isobutylamine, and processes employing SSZ-54 in a catalyst.
    Type: Grant
    Filed: June 28, 2002
    Date of Patent: April 19, 2005
    Assignee: Chevron U.S.A. Inc.
    Inventor: Stacey Zones
  • Publication number: 20050049139
    Abstract: The present invention relates to new crystalline molecular sieve SSZ-61 prepared using tetracyclic azonia cations as structure-directing agents, and methods for synthesizing SSZ-61.
    Type: Application
    Filed: August 28, 2003
    Publication date: March 3, 2005
    Inventors: Stacey Zones, Saleh Elomari
  • Patent number: 6821502
    Abstract: Zeolites having the IFR structure and containing aluminum in their crystal structure can be made by preparing a reaction mixture comprising a zeolite which is an active source of aluminum oxide, an active source of alkali metal oxide, an active source of an oxide of a tetravalent element, an organic template selected from the group consisting of a 1-benzyl-4-aza-1-azonia-bicyclo[2.2.2]octane cation and a N-benzyl quinuclidinium cation, and maintaining the reaction mixture under conditions sufficient to form crystals of the zeolite.
    Type: Grant
    Filed: June 12, 2002
    Date of Patent: November 23, 2004
    Assignee: Chevron U.S.A. Inc.
    Inventors: Saleh Elomari, Stacey Zones
  • Patent number: 6676923
    Abstract: The present invention relates to new crystalline zeolite SSZ-54 prepared using a templating agent comprising N-isopropyl ethylenediamine, or a mixture of 1-N-isopropyl diethylenetriamine and isobutylamine, and processes employing SSZ-54 in a catalyst.
    Type: Grant
    Filed: June 28, 2002
    Date of Patent: January 13, 2004
    Assignee: Chevron U.S.A. Inc.
    Inventors: Stacey Zones, Allen W. Burton, Jr.
  • Publication number: 20040005271
    Abstract: The present invention relates to new crystalline zeolite SSZ-54 prepared using a templating agent comprising N-isopropyl ethylenediamine, or a mixture of 1-N-isopropyl diethylenetriamine and isobutylamine, and processes employing SSZ-54 in a catalyst.
    Type: Application
    Filed: June 28, 2002
    Publication date: January 8, 2004
    Inventors: Stacey Zones, Allen W. Burton
  • Publication number: 20040005264
    Abstract: The present invention relates to new crystalline zeolite SSZ-54 prepared using a templating agent comprising N-isopropyl ethylenediamine, or a mixture of 1-N-isopropyl diethylenetriamine and isobutylamine, and a process for the reduction of nitrogen oxides in a gas stream using SSZ-54 in a catalyst.
    Type: Application
    Filed: June 28, 2002
    Publication date: January 8, 2004
    Inventor: Stacey Zones
  • Publication number: 20040004026
    Abstract: The present invention relates to new crystalline zeolite SSZ-54 prepared using a templating agent comprising N-isopropyl ethylenediamine, or a mixture of 1-N-isopropyl diethylenetriamine and isobutylamine, and processes employing SSZ-54 in a catalyst.
    Type: Application
    Filed: June 28, 2002
    Publication date: January 8, 2004
    Inventor: Stacey Zones
  • Publication number: 20030232007
    Abstract: Zeolites having the IFR structure and containing aluminum in their crystal structure can be made by preparing a reaction mixture comprising a zeolite which is an active source of aluminum oxide, an active source of alkali metal oxide, an active source of an oxide of a tetravalent element, an organic template selected from the group consisting of a 1-benzyl-4-aza-1-azonia-bicyclo[2.2.2]octane cation and a N-benzyl quinuclidinium cation, and maintaining the reaction mixture under conditions sufficient to form crystals of the zeolite.
    Type: Application
    Filed: June 12, 2002
    Publication date: December 18, 2003
    Inventors: Saleh Elomari, Stacey Zones