Patents by Inventor Kitchener B. Young

Kitchener B. Young 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).

  • Demulsification of bitumen emulsions using polyureas
    Patent number: 4384951
    Abstract: A process for recovering bitumen from oil-in-water (O/W) emulsions is disclosed wherein water soluble demulsifiers are used. These demulsifiers are polyureas of average molecular weight greater than about 5,000 prepared by the reaction between a polyisocyanate and a polyoxyalkylenediamine. To resolve the bituminous petroleum emulsions, the process is carried out between 25.degree. and 160.degree. C. wherein the demulsifier of the invention is contacted with the bituminous emulsion.
    Type: Grant
    Filed: December 2, 1981
    Date of Patent: May 24, 1983
    Assignees: Texaco Canada Resources, Ltd., Texaco Inc.
    Inventors: David R. McCoy, Kitchener B. Young
  • Demulsification of bitumen emulsions using cationic polymers
    Patent number: 4382852
    Abstract: A process for recovering bitumen from oil-in-water (O/W) emulsions is disclosed wherein water soluble demulsifiers are used. These demulsifiers are cationic polymers of equal to or greater than about 2,000 molecular weight obtained by the reaction of polyalkoxydiamines with epihalohydrins. To resolve the bituminous petroleum emulsions, the process is carried out between 25.degree. and 160.degree. C. wherein the demulsifier of the invention is contacted with the bituminous emulsion.
    Type: Grant
    Filed: December 2, 1981
    Date of Patent: May 10, 1983
    Assignees: Texaco Canada Resources, Inc., Texaco Inc.
    Inventors: David R. McCoy, Kitchener B. Young
  • Demulsification of bitumen emulsions with a high molecular weight mixed alkylene oxide polyol
    Patent number: 4321146
    Abstract: A process for recovering bitumen from oil-in-water (O/W) emulsions is disclosed wherein water soluble demulsifiers are used. These demulsifiers are polyols of 2 and greater functionality containing predominantly mixed ethylene oxide and propylene oxide wherein the ethylene oxide content of the polyol (by weight) is greater than about 70% but less than about 95%. The molecular weight of these polyols is greater than about 10,000. To resolve the bituminous petroleum emulsions, the process is carried out between 25.degree. and 120.degree. C. wherein the demulsifier of the invention is contacted with the bituminous emulsion.
    Type: Grant
    Filed: May 22, 1980
    Date of Patent: March 23, 1982
    Assignees: Texaco Inc., Texaco Canada, Inc.
    Inventors: David R. McCoy, Robert M. Gipson, Kitchener B. Young
  • Demulsification of bitumen emulsions
    Patent number: 4321148
    Abstract: A process for recovering bitumen from oil-in-water (O/W) emulsions is disclosed wherein water soluble demulsifiers are used. These demulsifiers are hydrophilic polyurethanes wherein the ethylene oxide content of the polyol portion of the polyurethane is greater than about 70% by weight. To resolve the bituminous petroleum emulsions, the process is carried out between 25.degree. and 120.degree. C. wherein the demulsifier of the invention is contacted with the bituminous emulsion.
    Type: Grant
    Filed: May 22, 1980
    Date of Patent: March 23, 1982
    Assignees: Texaco Inc., Texaco Canada, Inc.
    Inventors: David R. McCoy, Robert M. Gipson, Kitchener B. Young, Colin L. LaBerge