Patents by Inventor Philip Edward Gibson

Philip Edward Gibson 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).

  • Polycarboxylic acid production system employing enhanced evaporative concentration downstream of oxidative digestion
    Patent number: 7772424
    Abstract: Disclosed is an optimized system for more efficiently and economically producing terephthalic acid. The system employs an evaporative removal step downstream of oxidative digestion. The evaporative removal step removes a portion of the liquid phase and promotes precipitation of certain aromatic impurities. By promoting precipitation of certain aromatic impurities, the amount of the precipitated impurities in the recycled solvent is advantageously reduced.
    Type: Grant
    Filed: March 1, 2006
    Date of Patent: August 10, 2010
    Assignee: Eastman Chemical Company
    Inventors: Alan George Wonders, Ronald Buford Sheppard, Thomas Earl Woodruff, Martin De Boer, Raymond Elbert Fogle, Philip Edward Gibson, Kenny Randolph Parker
  • Versatile oxidation byproduct purge process
    Patent number: 7759516
    Abstract: Disclosed is a process and apparatus for treating a purge stream in a carboxylic acid production process. The process employs a purge process that allows for the separation of oxidation byproducts into benzoic acid and non-benzoic acid oxidation byproducts, thus providing flexibility in the treatment and use of such oxidation byproducts.
    Type: Grant
    Filed: August 16, 2007
    Date of Patent: July 20, 2010
    Assignee: Eastman Chemical Company
    Inventors: Philip Edward Gibson, Kenny Randolph Parker
  • Process to enrich a carboxylic acid composition
    Patent number: 7741516
    Abstract: A process is provided for producing an enriched carboxylic acid compositions produced by contacting composition comprising a carboxylic acid with an enrichment feed in an enrichment zone to form an enriched carboxylic acid composition. This invention also relates to a process and the resulting compositions for removing catalyst from a carboxylic acid composition to produce a post catalyst removal composition.
    Type: Grant
    Filed: March 1, 2006
    Date of Patent: June 22, 2010
    Assignee: Eastman Chemical Company
    Inventors: Philip Edward Gibson, Kenny Randolph Parker, Ruairi Seosamh O'Meadhra
  • Enriched Terephthalic Acid Composition
    Publication number: 20090317575
    Abstract: A process is provided for producing an enriched carboxylic acid compositions produced by contacting composition comprising a carboxylic acid with an enrichment feed in an enrichment zone to form an enriched carboxylic acid composition. This invention also relates to a process and the resulting compositions for removing catalyst from a carboxylic acid composition to produce a post catalyst removal composition.
    Type: Application
    Filed: June 26, 2009
    Publication date: December 24, 2009
    Applicant: Eastman Chemical Company
    Inventors: Philip Edward Gibson, Kenny Randolph Parker, Ronald Buford Sheppard
  • Enriched Terephthalic Acid Composition
    Publication number: 20090272941
    Abstract: A process is provided for producing an enriched carboxylic acid compositions produced by contacting composition comprising a carboxylic acid with an enrichment feed in an enrichment zone to form an enriched carboxylic acid composition. This invention also relates to a process and the resulting compositions for removing catalyst from a carboxylic acid composition to produce a post catalyst removal composition.
    Type: Application
    Filed: June 26, 2009
    Publication date: November 5, 2009
    Applicant: EASTMAN CHEMICAL COMPANY
    Inventors: Philip Edward Gibson, Kenny Randolph Parker, Ronald Buford Sheppard
  • Process for production of a carboxylic acid/diol mixture suitable for use in polyester production
    Patent number: 7601795
    Abstract: The present invention relates to a process by which a carboxylic acid/diol mixture is obtained from a slurry or cake carboxylic acid product without isolation of a substantially dry carboxylic acid solid. More specifically, the present invention relates to a process by which a terephthalic acid/ethylene glycol mixture suitable as a starting material for polyester or co-polyester production is obtained from a slurry or cake terephthalic acid product without isolation of a substantially dry terephthalic acid solid.
    Type: Grant
    Filed: March 10, 2005
    Date of Patent: October 13, 2009
    Assignee: Eastman Chemical Company
    Inventors: Kenny Randolph Parker, Robert Lin, Philip Edward Gibson
  • Process for removal of benzoic acid from an oxidizer purge stream
    Patent number: 7569722
    Abstract: A process is disclosed that relates to the removal of impurities, specifically benzoic acid, from a mother liquor produced in the synthesis of carboxylic acid, typically terephthalic acid.
    Type: Grant
    Filed: August 11, 2005
    Date of Patent: August 4, 2009
    Assignee: Eastman Chemical Company
    Inventors: Robert Lin, Philip Edward Gibson, Kenny Randolph Parker
  • Enriched terephthalic acid composition
    Patent number: 7557243
    Abstract: A process is provided for producing an enriched carboxylic acid compositions produced by contacting composition comprising a carboxylic acid with an enrichment feed in an enrichment zone to form an enriched carboxylic acid composition. This invention also relates to a process and the resulting compositions for removing catalyst from a carboxylic acid composition to produce a post catalyst removal composition.
    Type: Grant
    Filed: March 1, 2006
    Date of Patent: July 7, 2009
    Assignee: Eastman Chemical Company
    Inventors: Philip Edward Gibson, Kenny Randolph Parker, Ronald Buford Sheppard
  • Process for production of a dried carboxylic acid cake suitable for use in polyester production
    Patent number: 7546747
    Abstract: The present invention relates to a process by which a dried carboxylic acid cake is obtained from a slurry or cake carboxylic acid product through the use of at least one counter current wash. More specifically, the present invention relates to a process by which a dried terephthalic acid cake suitable as a starting material for polyester or co-polyester production is obtained from a slurry or cake terephthalic acid product through the use of at least one counter current wash.
    Type: Grant
    Filed: January 15, 2004
    Date of Patent: June 16, 2009
    Assignee: Eastman Chemical Company
    Inventors: Kenny Randolph Parker, Robert Lin, Philip Edward Gibson
  • Process to Produce an Enriched Composition
    Publication number: 20090026415
    Abstract: A process is provided for producing an enriched carboxylic acid compositions produced by contacting composition comprising a carboxylic acid with an enrichment feed in an enrichment zone to form an enriched carboxylic acid composition. This invention also relates to a process and the resulting compositions for removing catalyst from a carboxylic acid composition to produce a post catalyst removal composition.
    Type: Application
    Filed: October 2, 2008
    Publication date: January 29, 2009
    Applicant: EASTMAN CHEMICAL COMPANY
    Inventors: Kenny Randolph Parker, Philip Edward Gibson, Ruairi Seosamh O'Meadhra
  • Methods and apparatus for isolating carboxylic acid
    Patent number: 7462736
    Abstract: Disclosed are methods and apparatus for isolating a carboxylic acid. The processes employ a rotary pressure drum filter as a product isolation device in a carboxylic acid production process. The product isolation device is employed to isolate purified carboxylic acid particles from an isolation feed slurry comprising an aliphatic acid.
    Type: Grant
    Filed: February 20, 2007
    Date of Patent: December 9, 2008
    Assignee: Eastman Chemical Company
    Inventors: Kenny Randolph Parker, Philip Edward Gibson
  • Enriched carboxylic acid composition
    Patent number: 7432395
    Abstract: A process is provided for producing an enriched carboxylic acid compositions produced by contacting composition comprising a carboxylic acid with an enrichment feed in an enrichment zone to form an enriched carboxylic acid composition. This invention also relates to a process and the resulting compositions for removing catalyst from a carboxylic acid composition to produce a post catalyst removal composition.
    Type: Grant
    Filed: March 1, 2006
    Date of Patent: October 7, 2008
    Assignee: Eastman Chemical Company
    Inventors: Philip Edward Gibson, Kenny Randolph Parker, Ronald Buford Sheppard
  • Process for removal of benzoic acid from an oxidizer purge stream
    Patent number: 7402694
    Abstract: A process is disclosed that relates to the removal of impurities, specifically benzoic acid, from a mother liquor produced in the synthesis of carboxylic acid, typically terephthalic acid.
    Type: Grant
    Filed: August 11, 2005
    Date of Patent: July 22, 2008
    Assignee: Eastman Chemical Company
    Inventors: Robert Lin, Philip Edward Gibson, Kenny Randolph Parker
  • Enriched isophthalic acid composition
    Patent number: 7304178
    Abstract: A process is provided for producing an enriched carboxylic acid compositions produced by contacting composition comprising a carboxylic acid with an enrichment feed in an enrichment zone to form an enriched carboxylic acid composition. This invention also relates to a process and the resulting compositions for removing catalyst from a carboxylic acid composition to produce a post catalyst removal composition.
    Type: Grant
    Filed: March 1, 2006
    Date of Patent: December 4, 2007
    Assignee: Eastman Chemical Company
    Inventors: Philip Edward Gibson, Kenny Randolph Parker
  • Process for removal of impurities from an oxidizer purge stream
    Patent number: 7291270
    Abstract: A process is disclosed that relates to the removal of impurities and the recovery of a mother liquor and wash filtrate from an oxidizer purge stream produced in the synthesis of carboxylic acid, typically terephthalic. More particularly, the process involves the removal of impurities and the recovery of a mother liquor and wash filtrate from an oxidizer purge stream and then routing the mother liquor and or wash filtrate to an oxidation zone.
    Type: Grant
    Filed: October 28, 2004
    Date of Patent: November 6, 2007
    Assignee: Eastman Chemical Company
    Inventors: Philip Edward Gibson, Kenny Randolph Parker, Howard Wood Jenkins, Jr.
  • Polycarboxylic acid production system employing enhanced evaporative concentration downstream of oxidative digestion
    Publication number: 20070244340
    Abstract: Disclosed is an optimized system for more efficiently and economically producing terephthalic acid. The system employs an evaporative removal step downstream of oxidative digestion. The evaporative removal step removes a portion of the liquid phase and promotes precipitation of certain aromatic impurities. By promoting precipitation of certain aromatic impurities, the amount of the precipitated impurities in the recycled solvent is advantageously reduced.
    Type: Application
    Filed: March 1, 2006
    Publication date: October 18, 2007
    Inventors: Alan George Wonders, Ronald Buford Sheppard, Thomas Earl Woodruff, Martin De Boer, Raymond Elbert Fogle, Philip Edward Gibson, Kenny Randolph Parker
  • Process for removal of impurities from an oxidizer purge stream
    Patent number: 7273559
    Abstract: A process is disclosed that relates to the removal of impurities and the recovery of a mother liquor and wash filtrate from an oxidizer purge stream produced in the synthesis of carboxylic acid, typically terephthalic. More particularly, the process involves the removal of impurities and the recovery of a mother liquor and wash filtrate from an oxidizer purge stream and then routing the mother liquor and or wash filtrate to an oxidation zone.
    Type: Grant
    Filed: October 28, 2004
    Date of Patent: September 25, 2007
    Assignee: Eastman Chemical Company
    Inventors: Philip Edward Gibson, Kenny Randolph Parker, Howard Wood Jenkins, Jr.
  • Method and apparatus for drying carboxylic acid
    Publication number: 20070204479
    Abstract: Disclosed is a method and apparatus for drying a wet cake in a carboxylic acid production process. The method comprises employing a contact dryer for drying solid particles of carboxylic acid, where the solid particles can have a residence time of less than about 7 minutes in the dryer and an exit temperature of less than about 250° C. upon exiting the dryer.
    Type: Application
    Filed: February 1, 2007
    Publication date: September 6, 2007
    Inventors: Kenny Randolph Parker, Philip Edward Gibson
  • Methods and apparatus for isolating carboxylic acid
    Publication number: 20070208199
    Abstract: Disclosed are methods and apparatus for isolating a carboxylic acid. The processes employ at least two decanter centrifuges and at least one reslurry zone as a product isolation system in a carboxylic acid production process. The product isolation system is employed to isolate purified carboxylic acid particles from an isolation feed slurry comprising an aliphatic acid.
    Type: Application
    Filed: February 20, 2007
    Publication date: September 6, 2007
    Inventors: Kenny Randolph Parker, Philip Edward Gibson
  • Carboxylic acid production process
    Publication number: 20070208197
    Abstract: Disclosed are processes and apparatus for producing a carboxylic acid. The processes employ a concentration section disposed before and/or after a product isolation section, which allows for oxidation byproducts produced in the process to exit the product isolation section with the isolated carboxylic acid product and/or to be combined with the isolated carboxylic acid product downstream of the product isolation section at a rate of at least about 15 percent of the net make rate of the oxidation byproducts in the production process.
    Type: Application
    Filed: February 12, 2007
    Publication date: September 6, 2007
    Inventors: Philip Edward Gibson, Kenny Randolph Parker