Patents by Inventor Talmadge Gail James

Talmadge Gail James 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: 7538061
    Abstract: Disclosed is a new catalyst composition comprising a bimetallic Co—Fe catalyst, optionally complexed with a ligand selected from a N-heterocycle, phosphine, or porphorine ligand, that provides a lower cost alternative for the one step synthesis of 1,3-propanediol (1,3-PDO) from ethylene oxide and synthesis gas. For example, a catalyst containing cobalt carbonyl: iron carbonyl with no ligand, or a catalyst containing a cobalt carbonyl: octaethylporphine iron acetate provide moderate yields of 1,3-PDO in a one step synthesis under mild conditions.
    Type: Grant
    Filed: March 1, 2004
    Date of Patent: May 26, 2009
    Assignee: Shell Oil Company
    Inventors: John Frederick Knifton, Talmadge Gail James, Lynn Henry Slaugh, Paul Richard Weider, Kevin Dale Allen, Joseph Broun Powell
  • Patent number: 7276634
    Abstract: The present invention is an improvement upon the process for the production of 1,3-propanediol wherein an aqueous solution of 3-hydroxy propanal is formed, catalyst, if any, used in said formation is removed from the solution, sodium hydroxide is added to the solution to neutralize any acid therein such that the pH is at least about 5, the neutralized aqueous solution is subjected to hydrogenation to produce a crude 1,3-propanediol mixture which is distilled to produce 1,3-propanediol, water, and reactive heavy components. The improvement on this process comprises replacing the sodium hydroxide with a hydroxide selected from the group consisting of ammonium hydroxide, alkali metal hydroxides other than sodium hydroxide, and alkaline earth metal hydroxides to reduce the viscosity of the reactive heavy components.
    Type: Grant
    Filed: October 1, 2003
    Date of Patent: October 2, 2007
    Assignee: Shell Oil Company
    Inventors: John Frederick Knifton, Talmadge Gail James, Paul Richard Weider, Joseph Broun Powell, Edward Lewis Nielsen, Glenn Charles Komplin
  • Patent number: 6903044
    Abstract: Disclosed is a new catalyst composition comprising a bimetallic Co—Ru catalyst complexed with a N-heterocylcic ligand that is effective, economical, and provides improvements in oxidative stability in the one step synthesis of 1,3-propanediol (1,3-PDO) from ethylene oxide and synthesis gas. For example, cobalt-ruthenium-2,2?-bipyrimidine, 2,2?-dipyridyl, or 2,4,6-tripridyl-s-triazine catalyst precursors in cyclic ether solvents, such as 1,3-dioxolane, 1,4-dioxolane, 1,4-dioxane, and 2-ethyl-2-methyl-1,3-dioxolane, provide good yields of 1,3-PDO in a one step synthesis.
    Type: Grant
    Filed: November 18, 2002
    Date of Patent: June 7, 2005
    Assignee: Shell Oil Company
    Inventors: John Frederick Knifton, Talmadge Gail James, Kevin Dale Allen, Paul Richard Weider, Joseph Broun Powell, Lynn Henry Slaugh, Timothy Williams
  • Publication number: 20040176648
    Abstract: Disclosed is a new catalyst composition comprising a bimetallic Co—Fe catalyst, optionally complexed with a ligand selected from a N-heterocycle, phosphine, or porphorine ligand, that provides a lower cost alternative for the one step synthesis of 1,3-propanediol (1,3-PDO) from ethylene oxide and synthesis gas. For example, a catalyst containing cobalt carbonyl: iron carbonyl with no ligand, or a catalyst containing a cobalt carbonyl: octaethylporphine iron acetate provide moderate yields of 1,3-PDO in a one step synthesis under mild conditions.
    Type: Application
    Filed: March 1, 2004
    Publication date: September 9, 2004
    Inventors: John Frederick Knifton, Talmadge Gail James, Lynn Henry Slaugh, Paul Richard Weider, Kevin Dale Allen, Joseph Broun Powell
  • Patent number: 6753289
    Abstract: Disclosed is a novel class of modified ruthenium catalysts useful in the one step synthesis of 1,3-PDO comprising (a) a cobalt component comprising one or more non-ligated cobalt compounds; and (b) a ruthenium component comprising in major part a ruthenium carbonyl compound ligated with a phospholanoalkane ligand, solubilized in an ether solvent, that provides potential improvements in cost and performance in one step hydroformylation/hydrogenation. For example, cobalt-ruthenium-bidentate, bis(phospholano)alkane catalyst precursors in ether solvents provide good yields of 1,3-PDO in a one step synthesis.
    Type: Grant
    Filed: February 21, 2003
    Date of Patent: June 22, 2004
    Assignee: Shell Oil Company
    Inventors: John Frederick Knifton, Talmadge Gail James, Kevin Dale Allen, Paul Richard Weider, Joseph Broun Powell, Lynn Henry Slaugh
  • Patent number: 6750373
    Abstract: Disclosed is a new catalyst composition comprising a bimetallic Co—Fe catalyst, optionally complexed with a ligand selected from a N-heterocycle, phosphine, or porphorine ligand, that provides a lower cost alternative for the one step synthesis of 1,3-propanediol (1,3-PDO) from ethylene oxide and synthesis gas. For example, a catalyst containing cobalt carbonyl: iron carbonyl with no ligand, or a catalyst containing a cobalt carbonyl: octaethylporphine iron acetate provide moderate yields of 1,3-PDO in a one step synthesis under mild conditions.
    Type: Grant
    Filed: May 15, 2002
    Date of Patent: June 15, 2004
    Assignee: Shell Oil Company
    Inventors: John Frederick Knifton, Talmadge Gail James, Lynn Henry Slaugh, Kevin Dale Allen, Paul Richard Weider, Joseph Broun Powell
  • Patent number: 6706656
    Abstract: The invention provides a process for an improved oxirane hydroformylation catalyst, the improved oxirane hydroformylation catalyst, and a one step process for preparing a 1,3-diol in the presence of such a catalyst. One process for preparing the hydroformylation catalyst involves: a) forming a complex (A) by contacting a ruthenium(0) compound with a ditertiary phosphine ligand; and b) forming a complex (B) by subjecting complex (A) to a redox reaction with a cobalt(0) carbonyl compound. This catalyst is used in a one step hydroformylation process for preparing a 1,3-diol, comprising the reaction of an oxirane with syngas at hydroformylation conditions in an inert solvent in the presence of the above hydroformylation catalyst where recovery of product is preferably accomplished via phase separation of a diol rich phase from the bulk reaction liquor.
    Type: Grant
    Filed: April 23, 2002
    Date of Patent: March 16, 2004
    Assignee: Shell Oil Company
    Inventors: John Frederick Knifton, Lynn Henry Slaugh, Paul Richard Weider, Talmadge Gail James, Joseph Broun Powell, Kevin Dale Allen, Timothy Scott Williams
  • Publication number: 20030204118
    Abstract: Disclosed is a new catalyst composition comprising a bimetallic Co-Ru catalyst complexed with a N-heterocylcic ligand that is effective, economical, and provides improvements in oxidative stability in the one step synthesis of 1,3-propanediol (1,3-PDO) from ethylene oxide and synthesis gas. For example, cobalt-ruthenium-2,2′-bipyrimidine, 2,2′-dipyridyl, or 2,4,6-tripridyl-s-triazine catalyst precursors in cyclic ether solvents, such as 1,3-dioxolane, 1,4-dioxolane, 1,4-dioxane, and 2-ethyl-2-methyl-1,3-dioxolane, provide good yields of 1,3-PDO in a one step synthesis.
    Type: Application
    Filed: November 18, 2002
    Publication date: October 30, 2003
    Inventors: John Frederick Knifton, Talmadge Gail James, Kevin Dale Allen, Paul Richard Weider, Joseph Broun Powell, Lynn Henry Slaugh, Timothy Williams
  • Publication number: 20030153796
    Abstract: Disclosed is a novel class of modified ruthenium catalysts useful in the one step synthesis of 1,3-PDO comprising (a) a cobalt component comprising one or more non-ligated cobalt compounds; and (b) a ruthenium component comprising in major part a ruthenium carbonyl compound ligated with a phospholanoalkane ligand, solubilized in an ether solvent, that provides potential improvements in cost and performance in one step hydroformylation/hydrogenation. For example, cobalt-ruthenium-bidentate, bis(phospholano)alkane catalyst precursors in ether solvents provide good yields of 1,3-PDO in a one step synthesis.
    Type: Application
    Filed: February 21, 2003
    Publication date: August 14, 2003
    Inventors: John Frederick Knifton, Talmadge Gail James, Kevin Dale Allen, Paul Richard Weider, Joseph Broun Powell, Lynn Henry Slaugh
  • Patent number: 6586643
    Abstract: Disclosed is a new catalyst composition comprising a bimetallic Co—Ru catalyst complexed with a N-heterocylcic ligand that is effective, economical, and provides improvements in oxidative stability in the one step synthesis of 1,3-propanediol (1,3-PDO) from ethylene oxide and synthesis gas. For example, cobalt-ruthenium-2,2′-bipyrimidine, 2,2′-dipyridyl, or 2,4,6-tripridyl-s-triazine catalyst precursors in cyclic ether solvents, such as 1,3-dioxolane, 1,4-dioxolane, 1,4-dioxane, and 2-ethyl-2-methyl-1,3-dioxolane, provide good yields of 1,3-PDO in a one step synthesis.
    Type: Grant
    Filed: May 15, 2002
    Date of Patent: July 1, 2003
    Assignee: Shell Oil Company
    Inventors: John Frederick Knifton, Talmadge Gail James, Kevin Dale Allen, Paul Richard Weider, Joseph Broun Powell, Lynn Henry Slaugh, Timothy Williams
  • Patent number: 6576802
    Abstract: Disclosed is a novel class of modified ruthenium catalysts useful in the one step synthesis of 1,3-PDO comprising (a) a cobalt component comprising one or more non-ligated cobalt compounds; and (b) a ruthenium component comprising in major part a ruthenium carbonyl compound ligated with a phospholanoalkane ligand, solubilized in an ether solvent, that provides potential improvements in cost and performance in one step hydroformylation/hydrogenation. For example, cobalt-ruthenium-bidentate, bis(phospholano)alkane catalyst precursors in ether solvents provide good yields of 1,3-PDO in a one step synthesis.
    Type: Grant
    Filed: May 30, 2002
    Date of Patent: June 10, 2003
    Assignee: Shell Oil Company
    Inventors: John Frederick Knifton, Talmadge Gail James, Kevin Dale Allen, Paul Richard Weider, Joseph Broun Powell, Lynn Henry Slaugh
  • Publication number: 20030060668
    Abstract: Disclosed is a new catalyst composition comprising a bimetallic Co—Ru catalyst complexed with a N-heterocylcic ligand that is effective, economical, and provides improvements in oxidative stability in the one step synthesis of 1,3-propanediol (1,3-PDO) from ethylene oxide and synthesis gas. For example, cobalt-ruthenium-2,2′-bipyrimidine, 2,2′-dipyridyl, or 2,4,6-tripridyl-s-triazine catalyst precursors in cyclic ether solvents, such as 1,3-dioxolane, 1,4-dioxolane, 1,4-dioxane, and 2-ethyl-2-methyl-1,3-dioxolane, provide good yields of 1,3-PDO in a one step synthesis.
    Type: Application
    Filed: May 15, 2002
    Publication date: March 27, 2003
    Inventors: John Frederick Knifton, Talmadge Gail James, Kevin Dale Allen, Paul Richard Weider, Joseph Broun Powell, Lynn Henry Slaugh, Timothy Williams
  • Publication number: 20030055298
    Abstract: Disclosed is a novel class of modified ruthenium catalysts useful in the one step synthesis of 1,3-PDO comprising (a) a cobalt component comprising one or more non-ligated cobalt compounds; and (b) a ruthenium component comprising in major part a ruthenium carbonyl compound ligated with a phospholanoalkane ligand, solubilized in an ether solvent, that provides potential improvements in cost and performance in one step hydroformylation/hydrogenation. For example, cobalt-ruthenium-bidentate, bis(phospholano)alkane catalyst precursors in ether solvents provide good yields of 1,3-PDO in a one step synthesis.
    Type: Application
    Filed: May 30, 2002
    Publication date: March 20, 2003
    Inventors: John Frederick Knifton, Talmadge Gail James, Kevin Dale Allen, Paul Richard Weider, Joseph Broun Powell, Lynn Henry Slaugh
  • Patent number: 6518466
    Abstract: The invention provides a process for an improved oxirane hydroformylation catalyst, the improved oxirane hydroformylation catalyst, and a one step process for preparing a 1,3-diol in the presence of such a catalyst. One process for preparing the hydroformylation catalyst involves: a) forming a complex (A) by contacting a ruthenium(0) compound with a ditertiary phosphine ligand; and b) forming a complex (B) by subjecting complex (A) to a redox reaction with a cobalt(0) carbonyl compound. This catalyst is used in a one step hydroformylation process for preparing a 1,3-diol, comprising the reaction of an oxirane with syngas at hydroformylation conditions in an inert solvent in the presence of the above hydroformylation catalyst where recovery of product is preferably accomplished via phase separation of a diol rich phase from the bulk reaction liquor.
    Type: Grant
    Filed: September 20, 2001
    Date of Patent: February 11, 2003
    Assignee: Shell Oil Company
    Inventors: John Frederick Knifton, Lynn Henry Slaugh, Paul Richard Weider, Talmadge Gail James, Joseph Broun Powell, Kevin Dale Allen, Timothy Scott Williams
  • Publication number: 20030027717
    Abstract: Disclosed is a new catalyst composition comprising a bimetallic Co—Fe catalyst, optionally complexed with a ligand selected from a N-heterocycle, phosphine, or porphorine ligand, that provides a lower cost alternative for the one step synthesis of 1,3-propanediol (1,3-PDO) from ethylene oxide and synthesis gas. For example, a catalyst containing cobalt carbonyl: iron carbonyl with no ligand, or a catalyst containing a cobalt carbonyl: octaethylporphine iron acetate provide moderate yields of 1,3-PDO in a one step synthesis under mild conditions.
    Type: Application
    Filed: May 15, 2002
    Publication date: February 6, 2003
    Inventors: John Frederick Knifton, Talmadge Gail James, Lynn Henry Weider, Kevin Dale Allen, Paul Richard Weider, Joseph Broun Powell
  • Publication number: 20020161251
    Abstract: The invention provides a process for an improved oxirane hydroformylation catalyst, the improved oxirane hydroformylation catalyst, and a one step process for preparing a 1,3-diol in the presence of such a catalyst.
    Type: Application
    Filed: April 23, 2002
    Publication date: October 31, 2002
    Inventors: John Frederick Knifton, Lynn Henry Slaugh, Paul Richard Weider, Talmadge Gail James, Joseph Broun Powell, Kevin Dale Allen, Timothy Scott Williams
  • Patent number: 6469222
    Abstract: The invention provides a process for an improved oxirane hydroformylation catalyst, the improved oxirane hydroformylation catalyst, and a one step process for preparing a 1,3-diol in the presence of such a catalyst. One process for preparing the hydroformylation catalyst involves: a) forming a complex (A) by contacting a ruthenium(0) compound with a ditertiary phosphine ligand; and b) forming a complex (B) by subjecting complex (A) to a redox reaction with a cobalt(0) carbonyl compound. This catalyst is used in a one step hydroformylation process for preparing a 1,3-diol, comprising the reaction of an oxirane with syngas at hydroformylation conditions in an inert solvent in the presence of the above hydroformylation catalyst where recovery of product is preferably accomplished via phase separation of a diol rich phase from the bulk reaction liquor.
    Type: Grant
    Filed: March 15, 2001
    Date of Patent: October 22, 2002
    Assignee: Shell Oil Company
    Inventors: John Frederick Knifton, Lynn Henry Slaugh, Paul Richard Weider, Talmadge Gail James, Joseph Broun Powell, Kevin Dale Allen, Timothy Scott Williams
  • Patent number: 6468940
    Abstract: The invention provides a process for an improved oxirane hydroformylation catalyst, the improved oxirane hydroformylation catalyst, and a one step process for preparing a 1,3-diol in the presence of such a catalyst. One process for preparing the hydroformylation catalyst involves: a) forming a complex (A) by contacting a ruthenium(0) compound with a ditertiary phosphine ligand; and b) forming a complex (B) by subjecting complex (A) to a redox reaction with a cobalt(0) carbonyl compound. This catalyst is used in a one step hydroformylation process for preparing a 1,3-diol, comprising the reaction of an oxirane with syngas at hydroformylation conditions in an inert solvent in the presence of the above hydroformylation catalyst where recovery of product is preferably accomplished via phase separation of a diol rich phase from the bulk reaction liquor.
    Type: Grant
    Filed: September 20, 2001
    Date of Patent: October 22, 2002
    Assignee: Shell Oil Company
    Inventors: John Frederick Knifton, Lynn Henry Slaugh, Paul Richard Weider, Talmadge Gail James, Joseph Broun Powell, Kevin Dale Allen, Timothy Scott Williams
  • Publication number: 20020111516
    Abstract: The invention provides a process for an improved oxirane hydroformylation catalyst, the improved oxirane hydroformylation catalyst, and a one step process for preparing a 1,3-diol in the presence of such a catalyst.
    Type: Application
    Filed: September 20, 2001
    Publication date: August 15, 2002
    Inventors: John Frederick Knifton, Lynn Henry Slaugh, Paul Richard Weider, Talmadge Gail James, Joseph Broun Powell, Kevin Dale Allen, Timothy Scott Williams
  • Publication number: 20020004617
    Abstract: The invention provides a process for an improved oxirane hydroformylation catalyst, the improved oxirane hydroformylation catalyst, and a one step process for preparing a 1,3-diol in the presence of such a catalyst.
    Type: Application
    Filed: March 16, 2001
    Publication date: January 10, 2002
    Inventors: John Frederick Knifton, Lynn Henry Slaugh, Paul Richard Weider, Talmadge Gail James, Joseph Broun Powell, Kevin Dale Allen, Timothy Scott Williams