Patents by Inventor George M. Kramer

George M. Kramer 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: 5492618
    Abstract: An improved process for recovering hard acids and soft bases used to decompose coal in which finely divided coal particles are contacted with a hard acid in the presence of a soft base at temperatures of from 0.degree. to 100.degree. C., said hard acid being characterized by a heat of reaction with dimethylsulfide of from 10 kcal/mol to 30 kcal/mol and said soft base being characterized by a heat of reaction with boron trifluoride of from 10 kcal/mol to 17 kcal/mol, followed by extracting the decomposed coal to remove said hard acid and soft base wherein the improvement comprises performing said extraction at a temperature of about 0.degree. to about 50.degree. C. using dimethylcarbonate as the extraction solvent.
    Type: Grant
    Filed: August 12, 1994
    Date of Patent: February 20, 1996
    Assignee: Exxon Research and Engineering Company
    Inventors: George M. Kramer, Edwin R. Ernst, Andres M. Fraga
  • Patent number: 5489376
    Abstract: An improved process for recovering hard acids and soft bases used to decompose coal in which finely divided coal particles are contacted with a hard acid in the presence of a soft base at temperatures of from 0.degree. to 100.degree. C., said hard acid being characterized by a heat of reaction with dimethylsulfide of from 10 kcal/mol to 30 kcal/mol and said soft base being characterized by a heat of reaction with boron trifluoride of from 10 kcal/mol to 17 kcal/mol, followed by extracting the decomposed coal to remove said hard acid and soft base wherein the improvement comprises performing said extraction at a temperature of about 0.degree. to about 50.degree. C. using dimethylsulfide as the extraction solvent, and wherein following said dimethylcarbonate extraction, said decomposed coal is extracted with water at a temperature of from about 60.degree. to 275.degree. C.
    Type: Grant
    Filed: August 12, 1994
    Date of Patent: February 6, 1996
    Assignee: Exxon Research and Engineering Company
    Inventors: George M. Kramer, Edwin R. Ernst, Andres M. Fraga
  • Patent number: 5489377
    Abstract: An improved process for recovering hard acids and soft bases used to decompose coal in which finely divided coal particles are contacted with a hard acid in the presence of a soft base at temperatures of from 0.degree. to 100.degree. C., said hard acid being characterized by a heat of reaction with dimethylsulfide of from 10 kcal/mol to 30 kcal/mol and said soft base being characterized by a heat of reaction with boron trifluoride of from 10 kcal/mol to 17 kcal/mol, followed by extracting the decomposed coal to remove said hard acid and soft base wherein the improvement comprises performing said extraction at a temperature of about 0.degree. to about 50.degree. C. using dimethylcarbonate as the extraction solvent, and wherein following said dimethylcarbonate extraction, said coal is extracted with water at a temperature of from about 60.degree. to 275.degree. C., and wherein following said water extraction, said coal is soxhlet extracted in sulfolane at a temperature of about 25.degree. to about 350.degree.
    Type: Grant
    Filed: August 12, 1994
    Date of Patent: February 6, 1996
    Assignee: Exxon Research and Engineering Company
    Inventors: George M. Kramer, Andres M. Fraga
  • Patent number: 5298157
    Abstract: A process for depolymerizing coal at low temperatures by contacting finely divided coal with a hard acid and soft base.
    Type: Grant
    Filed: August 4, 1992
    Date of Patent: March 29, 1994
    Assignee: Exxon Research and Engineering Company
    Inventors: George M. Kramer, Edwin R. Ernst, Chang S. Hsu
  • Patent number: 5296133
    Abstract: A process for preparing a low ash coal wherein coal is depolymerized at low temperature by contacting finely divided coal with a hard acid and soft base, and extracting the depolymerized coal to remove mineral contaminants.
    Type: Grant
    Filed: August 4, 1992
    Date of Patent: March 22, 1994
    Assignee: Exxon Research and Engineering Company
    Inventors: George M. Kramer, Daniel P. Leta, William A. Lamberti, Mark M. Disko, Sutinder K. Behal, Edwin R. Ernst
  • Patent number: 5294349
    Abstract: A process for hydroprocessing coal to hydrocarbon oils wherein coal is depolymerized at low temperatures by contacting finely divided coal with a hard acid and soft base. The depolymerized coal is then hydroprocessed to hydrocarbon oils by forming a mixture with a coal conversion catalyst or precursor thereof, and hydroprocessing the mixture at temperatures of from 250.degree. to 550.degree. C. and hydrogen partial pressures of from 2100 to 35000 kPa.
    Type: Grant
    Filed: August 4, 1992
    Date of Patent: March 15, 1994
    Assignee: Exxon Research and Enginnering Company
    Inventors: George M. Kramer, Edwin R. Ernst, Chang S. Hsu, Gopal H. Singhal, Peter S. Maa
  • Patent number: 5157199
    Abstract: A process for isomerizing a paraffin feed comprising contacting the feed with a strong, solid acid catalyst comprising a sulfated Group IVB metal oxide and at least one Group VIII metal in the presence of hydrogen and an adamantane compound.
    Type: Grant
    Filed: April 1, 1991
    Date of Patent: October 20, 1992
    Assignee: Exxon Research and Engineering Co.
    Inventors: Stuart L. Soled, Enrique Iglesia, George M. Kramer, William E. Gates, Richard H. Ernst
  • Patent number: 4560825
    Abstract: Disclosed is an alkylation process comprising the step of contacting a paraffinic compound, capable of forming a carbonium ion under strong acid conditions, with an olefin in the presence of a strong acid system comprised of an acid component and a mixture comprised of: (a) one or more adamantane derivatives containing at least one unsubstituted bridgehead position and which is capable of being protonated, or hydrogen bonded to, or dissociated by an acid; and (b) one or more surfactants capable of stabilizing the one or more adamantane derivatives of (a) above at a hydrocarbon-acid interface.
    Type: Grant
    Filed: December 18, 1984
    Date of Patent: December 24, 1985
    Assignee: Exxon Research & Engineering Company
    Inventors: George M. Kramer, Edwin R. Ernst
  • Patent number: 4518798
    Abstract: Esters or carboxylic acids are prepared from olefins containing at least two carbon atoms by reacting the olefin with carbon monoxide in the presence of:(i) a first complex of a selected Lewis acid with the ester or carboxylic acid, whichever is the reaction product recovered;(ii) a second complex of the Lewis acid with an alcohol, if an ester is being prepared, or with water, if a carboxylic acid is being prepared; and(iii) a metal carbonyl compound containing a Group IB transition metal in the first oxidation state; andby recovering the reaction product(s).The preferred olefin is propylene, the preferred ester to be prepared is methylisobutyrate, the preferred metal is copper and the preferred Lewis acid is boron trifluoride.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: May 21, 1985
    Assignee: Exxon Research & Engineering Co.
    Inventors: George M. Kramer, Walter Weissman, Herbert C. Brown, Rowland Pettit, deceased
  • Patent number: 4426545
    Abstract: A process is described for paraffin-olefin alkylation under strong acid conditions in which an adamantylalkyl carboxylic acid or sulfonic acid is used to substantially improve the efficiency of reaction.
    Type: Grant
    Filed: March 15, 1983
    Date of Patent: January 17, 1984
    Assignee: Exxon Research and Engineering Co.
    Inventor: George M. Kramer
  • Patent number: 4424387
    Abstract: A process is described for paraffin isomerization under strong acid conditions in which an adamantyl carboxylic acid or sulfonic acid is used to substantially increase the reaction rate of the isomerization.
    Type: Grant
    Filed: March 15, 1983
    Date of Patent: January 3, 1984
    Assignee: Exxon Research and Engineering Co.
    Inventor: George M. Kramer
  • Patent number: 4362669
    Abstract: Novel compositions of matter are disclosed having the general formula UO.sub.2 AA'L.sub.n, in which A and A' are anions whose conjugate acids have boiling points less than about 200.degree. C. and pK.sub.a values of 4.8 or less, L is a neutral ligand (1) having a boiling point of greater than about 200.degree. C. and an equilibrium constant for its exchange reaction with complexed tetrahydrofuran of greater than about 10.sup.-3, or (2) having an equilibrium constant for its exchange reaction with complexed tetrahydrofuran of greater than about 10.sup.3, and n is an integer of from 1 to 4.
    Type: Grant
    Filed: February 25, 1980
    Date of Patent: December 7, 1982
    Assignee: Exxon Research and Engineering Co.
    Inventors: George M. Kramer, Donald M. Cox, Martin B. Dines, Edward T. Maas, Jr.
  • Patent number: 4357484
    Abstract: A process is described for non-cyclic paraffin isomerization under strong acid conditions in which an adamantane hydrocarbon is used to substantially increase the reaction rate of the isomerization.
    Type: Grant
    Filed: August 31, 1981
    Date of Patent: November 2, 1982
    Assignee: Exxon Research and Engineering Co.
    Inventor: George M. Kramer
  • Patent number: 4357483
    Abstract: A process is described for paraffin isomerization under strong acid conditions in which in aminoalkyladamantane is used to substantially increase the reaction rate of the isomerization.
    Type: Grant
    Filed: August 31, 1981
    Date of Patent: November 2, 1982
    Assignee: Exxon Research and Engineering Co.
    Inventor: George M. Kramer
  • Patent number: 4357481
    Abstract: A process is described for paraffin-olefin alkylation under strong acid conditions in which an adamantane hydrocarbon is used to substantially increase the reaction rate of the alkylation.
    Type: Grant
    Filed: August 31, 1981
    Date of Patent: November 2, 1982
    Assignee: Exxon Research and Engineering Co.
    Inventor: George M. Kramer
  • Patent number: 4357482
    Abstract: A process is described for paraffin-olefin alkylation under strong acid conditions in which an aminoalkyladamantane hydrocarbon is used to substantially improve the reaction.
    Type: Grant
    Filed: August 31, 1981
    Date of Patent: November 2, 1982
    Assignee: Exxon Research and Engineering Co.
    Inventor: George M. Kramer
  • Patent number: 4243597
    Abstract: Novel compositions of matter are disclosed having the formula UO.sub.2 AA'L.sub.n, wherein n is 0 or 1, and in which A and A' are anions whose conjugate acids have boiling points less than about 200.degree. C. and pK.sub.a values of 4.8 or less, L is a neutral ligand having a boiling point less than about 190.degree. C. and having an equilibrium constant for the exchange reaction with tetrahydrofuran of between about 10.sup.-3 and 10.sup.3, and the combination of A, A' and L satisfy five or six coordination sites of the central uranium atom.
    Type: Grant
    Filed: November 16, 1978
    Date of Patent: January 6, 1981
    Assignee: Exxon Research & Engineering Co.
    Inventors: Richard B. Hall, Andrew Kaldor, George M. Kramer, Martin B. Dines
  • Patent number: 4229611
    Abstract: Novel acid systems are disclosed which are characterized as being capable of stabilizing high concentrations of tertiary cations, e.g., t-butyl cation, and further characterized as capable of forming carbonium ion salts containing both dimeric and monomeric anions. The ions undergo hydride and halide exchange with other alkanes and halides. The hydride transfer reaction renders them useful in isomerization and alkylation reactions.
    Type: Grant
    Filed: April 11, 1979
    Date of Patent: October 21, 1980
    Assignee: Exxon Research & Engineering Co.
    Inventor: George M. Kramer
  • Patent number: RE33080
    Abstract: A process is described for non-cyclic paraffin isomerization under strong acid conditions in which an adamantane hydrocarbon is used to substantially increase the reaction rate of the isomerization.
    Type: Grant
    Filed: August 14, 1986
    Date of Patent: October 3, 1989
    Assignee: Exxon Research and Engineering Company
    Inventor: George M. Kramer
  • Patent number: D366302
    Type: Grant
    Filed: November 14, 1994
    Date of Patent: January 16, 1996
    Inventors: Richard O. Marsh, George M. Kramer, Kenneth T. Ockey