Patents by Inventor Michael Dubeck

Michael Dubeck 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).

  • Two stage hydrogenolysis of carbohydrate to glycols using sulfide modified ruthenium catalyst in second stage
    Patent number: 4476331
    Abstract: A process for the production of a lower polyhydric alcohol or a mixture thereof by the hydrogenation and hydrolysis of a carbohydrate. The first stage hydrogenation produces higher polyhydric alcohols, such as sorbitol. In the second stage these higher polyhydric alcohols are selectively converted under the appropriate reaction conditions to lower polyhydric alcohols, such as ethylene glycol and 1,2-propylene glycol, using a sulfide-modified ruthenium catalyst.
    Type: Grant
    Filed: September 6, 1983
    Date of Patent: October 9, 1984
    Assignee: Ethyl Corporation
    Inventors: Michael Dubeck, Gordon G. Knapp
  • Sulfide-modified ruthenium catalyst
    Patent number: 4430253
    Abstract: A process for the production of a lower polyhydric alcohol or a mixture thereof by the hydrogenation and hydrolysis of a carbohydrate. The first stage hydrogenation produces higher polyhydric alcohols, such as sorbitol. In the second stage these higher polyhydric alcohols are selectively converted under the appropriate reaction conditions to lower polyhydric alcohols, such as ethylene glycol and 1,2-propylene glycol, using a sulfide-modified ruthenium catalyst.
    Type: Grant
    Filed: February 11, 1982
    Date of Patent: February 7, 1984
    Assignee: Ethyl Corporation
    Inventors: Michael Dubeck, Gordon G. Knapp
  • Catalytic process for the selective formation of ethanol and methyl acetate from methanol and synthesis gas
    Patent number: 4415749
    Abstract: A process for the selective formation of ethanol and methyl acetate by contacting methanol, hydrogen and carbon monoxide with a catalyst comprising rhodium and iron in the reduced state deposited on a support of alumina containing a minor amount of an alkaline metal at reaction conditions correlated so as to favor the formation of a substantial proportion of ethanol and methyl acetate.
    Type: Grant
    Filed: September 15, 1981
    Date of Patent: November 15, 1983
    Assignee: Ethyl Corporation
    Inventors: Duane C. Hargis, Michael Dubeck
  • Ethanol from methanol and synthesis gas
    Patent number: 4370507
    Abstract: A process for selectively preparing ethanol by contacting methanol, hydrogen and carbon monoxide with a solid catalyst comprising rhodium and iron in the reduced state deposited on a support of alumina impregnated with a promoter amount of a heterocyclic amine at reaction conditions correlated so as to favor the formation of a substantial proportion of ethanol.
    Type: Grant
    Filed: January 8, 1982
    Date of Patent: January 25, 1983
    Assignee: Ethyl Corporation
    Inventors: Duane C. Hargis, Michael Dubeck
  • Catalyst for converting methanol and synthesis gas to ethanol
    Patent number: 4361499
    Abstract: A process for selectively preparing ethanol by contacting methanol, hydrogen and carbon monoxide with a solid catalyst comprising rhodium and iron in the reduced state deposited on a support of alumina impregnated with a promoter amount of a heterocyclic amine at reaction conditions correlated so as to favor the formation of a substantial proportion of ethanol.
    Type: Grant
    Filed: September 11, 1980
    Date of Patent: November 30, 1982
    Assignee: Ethyl Corporation
    Inventors: Duane C. Hargis, Michael Dubeck
  • Catalytic composition for the selective formation of ethanol and methyl acetate from methanol and synthesis gas
    Patent number: 4309314
    Abstract: A process for the selective formation of ethanol and methyl acetate by contacting methanol, hydrogen and carbon monoxide with a catalyst comprising rhodium and iron in the reduced state deposited on a support of alumina containing a minor amount of an alkaline metal at reaction conditions correlated so as to favor the formation of a substantial proportion of ethanol and methyl acetate.
    Type: Grant
    Filed: May 27, 1980
    Date of Patent: January 5, 1982
    Assignee: Ethyl Corporation
    Inventors: Duane C. Hargis, Michael Dubeck
  • Halogenated xylenes
    Patent number: 4107104
    Abstract: Compounds having the formula ##STR1## where X is a halogen, ester, hydroxyl, alkoxy, amine, cyanide, or isocyanate radicals. These compounds are useful as flame retardant additives for polymers, especially for polyurethane foams.
    Type: Grant
    Filed: May 25, 1973
    Date of Patent: August 15, 1978
    Assignee: Ethyl Corporation
    Inventors: Michael Dubeck, David R. Brackenridge
  • Metal extraction from sea nodules
    Patent number: 4066733
    Abstract: A process is disclosed for extracting nickel, copper, cobalt and molybdenum from a complex ore containing copper, nickel, cobalt, molybdenum, manganese and iron. The process features treatment of the ore with gaseous compound followed by leaching with an aqueous ammonia/ammonium salt solution into which is additionally introduced sulfite.
    Type: Grant
    Filed: September 30, 1976
    Date of Patent: January 3, 1978
    Assignee: Ethyl Corporation
    Inventors: Michael Dubeck, Gordon G. Knapp
  • Conversion of acetals
    Patent number: 4062898
    Abstract: Acetals can be transformed into useful products by reaction with carbon monoxide and hydrogen. For example, methylal can be converted to ethanol and .beta.-methoxyethanol. The reaction can be conducted in the presence of a catalyst system comprising cobalt, iodine and ruthenium.
    Type: Grant
    Filed: October 6, 1975
    Date of Patent: December 13, 1977
    Assignee: Ethyl Corporation
    Inventors: Michael Dubeck, Gordon G. Knapp
  • Fire retardant polystyrene
    Patent number: 4057531
    Abstract: Polystyrene and related polymers are rendered flame retardant by 2,3,5,6-tetrabromo-p-xylene-.alpha.,.alpha.'-diol. Tests of polystyrene containing the diol show a high degree of stability toward ultraviolet radiation.
    Type: Grant
    Filed: January 31, 1977
    Date of Patent: November 8, 1977
    Assignee: Ethyl Corporation
    Inventors: Michael Dubeck, David R. Brackenridge
  • Metals extraction process
    Patent number: 3994720
    Abstract: A process is disclosed for extracting nickel, copper, cobalt and molybdenum from a complex ore containing copper, nickel, cobalt, molybdenum, manganese and iron. The process features treatment of the ore with alcohol, aldehyde or mixtures thereof followed by leaching with an aqueous solution of ammonia and ammonium salt. A specific complex ore is sea nodules.
    Type: Grant
    Filed: March 28, 1975
    Date of Patent: November 30, 1976
    Assignee: Ethyl Corporation
    Inventor: Michael Dubeck
  • Leaching of low-grade nickel complex ore
    Patent number: 3984237
    Abstract: A process for extracting nickel from a low-grade nickel complex ore. The process features leaching the ore under elevated temperatures for relatively short periods of time with an aqueous ammoniacal leach solution.
    Type: Grant
    Filed: March 27, 1975
    Date of Patent: October 5, 1976
    Assignee: Ethyl Corporation
    Inventors: Michael Dubeck, Suk Joong Im