Patents by Inventor Xingtao Gao

Xingtao Gao 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: 10799855
    Abstract: A catalytic additive comprising an intermediate pore zeolite, such as ZSM-5 is treated so as to improve propylene yields when the additive is included in a FCC catalytic inventory by first treating the zeolite with a phosphorus compound to incorporate the phosphorus in the zeolite, and mixing the P-treated zeolite with a matrix component comprising kaolin and another phosphorus-containing compound.
    Type: Grant
    Filed: January 23, 2014
    Date of Patent: October 13, 2020
    Assignee: BASF Corporation
    Inventors: Xingtao Gao, David Hamilton Harris
  • Patent number: 10786807
    Abstract: Disclosed in certain embodiments are ZSM-5 zeolite microspheres. The ZSM-5 zeolite microspheres may contain substantially no clay or calcined clay material. The ZSM-5 zeolite microspheres may have a ZSM-5 zeolite content of at least 70 wt. %. Disclosed in certain embodiments is a method of forming ZSM-5 zeolite microspheres including treating microspheres with at least one alkali solution.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: September 29, 2020
    Assignee: BASF Corporation
    Inventors: Xingtao Gao, Christopher R. Castellano, Brendan Patrick Dowd
  • Patent number: 10335777
    Abstract: Disclosed in certain embodiments are ZSM-5 zeolite microspheres. Disclosed in certain embodiments is a method of forming ZSM-5 zeolite microspheres including: 1) shaping a mixture into microspheres where the mixture includes a silica material and of particulates selected from at least one high-density material with an absolute bulk density of at least 0.3 g/cc, ZSM-5 zeolite crystals, and combinations thereof; 2) calcining the microspheres; and 3) reacting and subsequently heating the microspheres with at least one alkali solution to form ZSM-5 zeolite in-situ on the microspheres, where the ZSM-5 zeolite microspheres contain substantially no clay or calcined clay material.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: July 2, 2019
    Assignee: BASF Corporation
    Inventors: Xingtao Gao, Christopher R. Castellano, Brendan Patrick Dowd
  • Publication number: 20190151831
    Abstract: Disclosed in certain embodiments are ZSM-5 zeolite microspheres. Disclosed in certain embodiments is a method of forming ZSM-5 zeolite microspheres including: 1) shaping a mixture into microspheres where the mixture includes a silica material and of particulates selected from at least one high-density material with an absolute bulk density of at least 0.3 g/cc, ZSM-5 zeolite crystals, and combinations thereof; 2) calcining the microspheres; and 3) reacting and subsequently heating the microspheres with at least one alkali solution to form ZSM-5 zeolite in-situ on the microspheres, where the ZSM-5 zeolite microspheres contain substantially no clay or calcined clay material.
    Type: Application
    Filed: January 17, 2019
    Publication date: May 23, 2019
    Inventors: Xingtao Gao, Christopher R. Castellano, Brendan Patrick Dowd
  • Patent number: 10213774
    Abstract: Disclosed in certain embodiments are ZSM-5 zeolite microspheres. Disclosed in certain embodiments is a method of forming ZSM-5 zeolite microspheres including: 1) shaping a mixture into microspheres where the mixture includes a silica material and of particulates selected from at least one high-density material with an absolute bulk density of at least 0.3 g/cc, ZSM-5 zeolite crystals, and combinations thereof; 2) calcining the microspheres; and 3) reacting and subsequently heating the microspheres with at least one alkali solution to form ZSM-5 zeolite in-situ on the microspheres, where the ZSM-5 zeolite microspheres contain substantially no clay or calcined clay material.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: February 26, 2019
    Assignee: BASF Corporation
    Inventors: Xingtao Gao, Christopher R. Castellano, Brendan Patrick Dowd
  • Patent number: 10207257
    Abstract: A zeolite-containing fixed bed catalyst is formed by pre-shaping a mixture of a reactive aluminum-containing component and a matrix component into pre-shaped particles, and contacting the pre-shaped particles with a reactive liquid containing a silicate for a sufficient time and temperature to form an in-situ zeolite within the pre-shaped particles. The contacting of the pre-shaped particles and the liquid is achieved such that there is relative movement between the pre-shaped particles and the liquid.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: February 19, 2019
    Assignee: BASF Corporation
    Inventors: Xingtao Gao, David Stockwell, Gary M. Smith
  • Publication number: 20180071723
    Abstract: Disclosed in certain embodiments are ZSM-5 zeolite microspheres. Disclosed in certain embodiments is a method of forming ZSM-5 zeolite microspheres including: 1) shaping a mixture into microspheres where the mixture includes a silica material and of particulates selected from at least one high-density material with an absolute bulk density of at least 0.3 g/cc, ZSM-5 zeolite crystals, and combinations thereof; 2) calcining the microspheres; and 3) reacting and subsequently heating the microspheres with at least one alkali solution to form ZSM-5 zeolite in-situ on the microspheres, where the ZSM-5 zeolite microspheres contain substantially no clay or calcined clay material.
    Type: Application
    Filed: April 8, 2016
    Publication date: March 15, 2018
    Inventors: Xingtao Gao, Christopher R. Castellano, Brendan Patrick Dowd
  • Publication number: 20170001179
    Abstract: A zeolite-containing fixed bed catalyst is formed by pre-shaping a mixture of a reactive aluminum-containing component and a matrix component into pre-shaped particles, and contacting the pre-shaped particles with a reactive liquid containing a silicate for a sufficient time and temperature to form an in-situ zeolite within the pre-shaped particles. The contacting of the pre-shaped particles and the liquid is achieved such that there is relative movement between the pre-shaped particles and the liquid.
    Type: Application
    Filed: September 2, 2016
    Publication date: January 5, 2017
    Inventors: Xingtao Gao, David Stockwell, Gary M. Smith
  • Patent number: 9433934
    Abstract: A zeolite-containing fixed bed catalyst is formed by pre-shaping a mixture of a reactive aluminum-containing component and a matrix component into pre-shaped particles, and contacting the pre-shaped particles with a reactive liquid containing a silicate for a sufficient time and temperature to form an in-situ zeolite within the pre-shaped particles. The contacting of the pre-shaped particles and the liquid is achieved such that there is relative movement between the pre-shaped particles and the liquid.
    Type: Grant
    Filed: May 22, 2013
    Date of Patent: September 6, 2016
    Assignee: BASF Corporation
    Inventors: Xingtao Gao, David Stockwell, Gary M. Smith
  • Publication number: 20140206526
    Abstract: A catalytic additive comprising an intermediate pore zeolite, such as ZSM-5 is treated so as to improve propylene yields when the additive is included in a FCC catalytic inventory by first treating the zeolite with a phosphorus compound to incorporate the phosphorus in the zeolite, and mixing the P-treated zeolite with a matrix component comprising kaolin and another phosphorus-containing compound.
    Type: Application
    Filed: January 23, 2014
    Publication date: July 24, 2014
    Applicant: BASF Corporation
    Inventors: Xingtao Gao, David Hamilton Harris
  • Publication number: 20130252802
    Abstract: A zeolite-containing fixed bed catalyst is formed by pre-shaping a mixture of a reactive aluminum-containing component and a matrix component into pre-shaped particles, and contacting the pre-shaped particles with a reactive liquid containing a silicate for a sufficient time and temperature to form an in-situ zeolite within the pre-shaped particles. The contacting of the pre-shaped particles and the liquid is achieved such that there is relative movement between the pre-shaped particles and the liquid.
    Type: Application
    Filed: May 22, 2013
    Publication date: September 26, 2013
    Applicant: BASF Corporation
    Inventors: Xingtao Gao, David Stockwell, Gary M. Smith
  • Patent number: 8449762
    Abstract: A sulfur reduction catalyst useful to reduce the levels of sulfur in a cracked gasoline product comprises a metal vanadate compound. The metal vanadate compound can be supported on a molecular sieve such as a zeolite in which the metal vanadate compound is primarily located on the exterior surface of the pore structure of the zeolite and on the surface of any matrix material used to bind or support the zeolite.
    Type: Grant
    Filed: February 23, 2011
    Date of Patent: May 28, 2013
    Assignee: BASF Corporation
    Inventors: Xingtao Gao, James Fu
  • Publication number: 20120156116
    Abstract: A method for recovering rare earth metals from zeolite-containing waste FCC catalysts comprises an acid leaching step to remove the rare earth metals from the catalyst to form a leachate containing dissolved rare earth metals and separating the rare earth metals from the leachate such as by precipitation.
    Type: Application
    Filed: December 15, 2010
    Publication date: June 21, 2012
    Applicant: BASF Corporation
    Inventors: Xingtao Gao, William Todd Owens
  • Publication number: 20110139684
    Abstract: A sulfur reduction catalyst useful to reduce the levels of sulfur in a cracked gasoline product comprises a metal vanadate compound. The metal vanadate compound can be supported on a molecular sieve such as a zeolite in which the metal vanadate compound is primarily located on the exterior surface of the pore structure of the zeolite and on the surface of any matrix material used to bind or support the zeolite.
    Type: Application
    Filed: February 23, 2011
    Publication date: June 16, 2011
    Applicant: BASF Catalysts LLC
    Inventors: Xingtao Gao, James Fu
  • Patent number: 7960307
    Abstract: A sulfur reduction catalyst useful to reduce the levels of sulfur in a cracked gasoline product comprises a metal vanadate compound. The metal vanadate compound can be supported on a molecular sieve such as a zeolite in which the metal vanadate compound is primarily located on the exterior surface of the pore structure of the zeolite and on the surface of any matrix material used to bind or support the zeolite.
    Type: Grant
    Filed: March 6, 2007
    Date of Patent: June 14, 2011
    Assignee: BASF Corporation
    Inventors: Xingtao Gao, James Fu
  • Patent number: 7495143
    Abstract: A process for alkylation of a hydrocarbon compound includes providing a catalyst including a zeolite Y having a crystal size of no more than 100 nm, and reacting an alkylatable hydrocarbon with an alkylating agent in the presence of the catalyst under alkylation reaction conditions to provide a gasoline product having a Research Octane Number of over 99.5.
    Type: Grant
    Filed: February 25, 2008
    Date of Patent: February 24, 2009
    Assignee: Lummus Technology Inc.
    Inventors: Xingtao Gao, Johannes Hendrik Koegler, Lawrence L. Murrell, Philip J. Angevine
  • Publication number: 20080154083
    Abstract: A process for alkylation of a hydrocarbon compound includes providing a catalyst including a zeolite Y having a crystal size of no more than 100 nm, and reacting an alkylatable hydrocarbon with an alkylating agent in the presence of the catalyst under alkylation reaction conditions to provide a gasoline product having a Research Octane Number of over 99.5.
    Type: Application
    Filed: February 25, 2008
    Publication date: June 26, 2008
    Inventors: Xingtao Gao, Johannes Hendrik Koegler, Lawrence L. Murrell, Philip J. Angevine
  • Patent number: 7361797
    Abstract: A process for alkylation of a hydrocarbon compound includes providing a catalyst including a zeolite Y having a crystal size of no more than 100 nm, and reacting an alkylatable hydrocarbon with an alkylating agent in the presence of the catalyst under alkylation reaction conditions to provide a gasoline product having a Research Octane Number of over 99.5.
    Type: Grant
    Filed: February 9, 2004
    Date of Patent: April 22, 2008
    Assignee: ABB Lummus Global Inc.
    Inventors: Xingtao Gao, Johannes Hendrik Koegler, Lawrence L. Murrell, Philip J. Angevine
  • Publication number: 20080053902
    Abstract: Methods are provided for separation of substances using non-crystalline, amorphous inorganic oxides having mesoporosity or combined meso- and microporosity. The amorphous inorganic oxide may have a separating agent, such as a chemical functional group, bonded or attached to the surfaces within the pores. The amorphous inorganic material is exposed to a fluid containing two or more materials to be separated. At least one material contained in the fluid is preferentially retained by the amorphous inorganic oxide either on the surface of the inorganic oxide within the pores or by interaction with a separating agent group attached to the pore surfaces.
    Type: Application
    Filed: August 31, 2006
    Publication date: March 6, 2008
    Inventors: Johannes Koegler, Zhiping Shan, Xingtao Gao, Philip Angevine, Jacobus Jansen
  • Publication number: 20070249495
    Abstract: A sulfur reduction catalyst useful to reduce the levels of sulfur in a cracked gasoline product comprises a metal vanadate compound. The metal vanadate compound can be supported on a molecular sieve such as a zeolite in which the metal vanadate compound is primarily located on the exterior surface of the pore structure of the zeolite and on the surface of any matrix material used to bind or support the zeolite.
    Type: Application
    Filed: March 6, 2007
    Publication date: October 25, 2007
    Inventors: Xingtao Gao, James Fu