Patents Represented by Attorney Carl G. Ries

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  • Catalytic conversion of allyl formate to carboxylic acids
    Patent number: 4831191
    Abstract: Allyl formate is substantially selectively converted to isobutyric acid, n-butyric acid and/or glutaric acid by bringing the alyl formate into contact with activated carbon in the presence of carbon monoxide, water and formic acid and a halide promoted group VIII soluble metal catalyst optionally in the presence of a solvent. Isobutyric and n-butyric acids are preferentially formed in the presence of relatively low concentrations of water and formic acid whereas glutaric acid is preferentially formed in the presence of relatively higher concentrations of water and formic acid.
    Type: Grant
    Filed: May 23, 1986
    Date of Patent: May 16, 1989
    Assignee: Texaco Inc.
    Inventor: John M. Larkin
  • Melamine-diamine condensates and the cure of 1,2-epoxide resins therewith
    Patent number: 4826930
    Abstract: Novel melamine-poly(oxyethylene or oxypropylene) diamine condensates are prepared which have the formula: ##STR1## Wherein: R represents H or--NH--CHR'--(CH.sub.2).sub.x --[--O--CH.sub.2 --CHR"--].sub.n --O--(CH.sub.2).sub.x --CHR'--NH.sub.2R' represents H or --CH.sub.3,R" represents H or -CH.sub.3 or CH.sub.2 CH.sub.3,x represents an integer having a value of 1 or 2, andn is a number having an average value of about 1 to about 2.The melamine-poly(oxyethylene or oxypropylene) diamine condensates have utility as curing agents for epoxy resins.
    Type: Grant
    Filed: April 22, 1988
    Date of Patent: May 2, 1989
    Assignee: Texaco Chemical Company
    Inventors: Robert L. Zimmerman, Harold G. Waddill, George P. Speranza
  • Method for making pelleted phosphated catalysts derived from group IVB transition metal oxides and catalysts thus prepared
    Patent number: 4806517
    Abstract: This invention is directed to novel catalyst compositions based on a pelleted group IVb transition metal oxide to which about 0.5 to about 7 wt. % of phosphorus is thermally chemically bonded by a novel process wherein the pellets are impregnated with a liquid water-soluble phosphorus compound containing phosphorus-oxygen bonds, thermally treated after removal of unabsorbed liquid for 0.5 to 5 hours at 100.degree.-150.degree. C. to chemically bond the recited amount of phosphorus to the pellets followed by calcination at 200.degree. to 900.degree. C. to stabilize the pellets. Also disclosed is a regenerative process for preparing predominantly linear polyethylenepolyamines from ethylenediamine and monoethanolamine using the novel catalyst compositions.
    Type: Grant
    Filed: March 12, 1987
    Date of Patent: February 21, 1989
    Assignee: Texaco Inc.
    Inventors: Steven H. Vanderpool, Lewis W. Watts, Jr., John M. Larkin, Terry L. Renken
  • Removal of acid gases from gas streams
    Patent number: 4775519
    Abstract: Improvement are provided in accordance with the present invention by a continuous process for the treating of a gas stream containing acid gas components wherein the gas stream is counter currently contacted in an absorption zone with an aqueous solution of a mixture of N-methyldiethanolamine with imidazole or a methyl substituted imidazole to thereby provide for acid gas (e.g., CO.sub.2) absorption.
    Type: Grant
    Filed: October 31, 1985
    Date of Patent: October 4, 1988
    Assignee: Texaco Inc.
    Inventor: Edward C. Yit Nieh
  • Method of making molybdenum/alkylene glycol complexes useful as epoxidation catalysts
    Patent number: 4758681
    Abstract: An improved procedure for making molybdenum/ethylene glycol complexes useful as epoxidation catalysts wherein the cycle time necessary for catalyst preparation is significantly reduced by preparing a mixture of undiluted ethylene glycol with undiluted ammonium dimolybdate in the molar ratio of about 7 to about 20 moles of ethylene glycol per gram atom of molybdenum, heating the mixture from ambient conditions to a temperature of about 25.degree. to about 150.degree. C. over a 5 to 100 minute period while simultaneously reducing the pressure to about 5 to about 100 mm Hg and, after an appropriate holding time, if necessary, returning the mixture to ambient conditions and recovering an essentially solids free clear catalytically active solution of molybdenum/ethylene glycol complex in unreacted ethylene glycol having a molybdenum content of about 10 to 15 wt. % of molybednum.
    Type: Grant
    Filed: December 30, 1986
    Date of Patent: July 19, 1988
    Assignee: Texaco Chemical Company
    Inventors: Edward T. Marquis, Howard F. Payton
  • Catalytic method for the manufacture of triethylenediamine
    Patent number: 4757143
    Abstract: Cyclic and acyclic hydroxyethyl ethylenepolyamines are converted to triethylenediamine when using a catalyst composed of zirconia or titania to which from about 0.5 to about 7 wt. % of phosphorous has been thermally chemically bonded in the form of phosphate linkages.
    Type: Grant
    Filed: June 9, 1986
    Date of Patent: July 12, 1988
    Assignee: Texaco Inc.
    Inventors: Steven H. Vanderpool, Walter H. Brader, Jr., Ernest L. Yeakey, Edward C. Nieh, Thomas T. McConnell
  • Conjoint production of C-methyl triethylene diamine and allyl piperazine
    Patent number: 4754036
    Abstract: N-(hydroxypropyl) piperazine and/or N,N'-(dihydroxypropyl) piperazine can conjointly be converted to C-methyl-triethylenediamine and allyl piperazine with excellent conjoint yield and selectivity when using a catalyst composed of titania to which from about 0.5 to about 7 wt. % of phosphorus has been thermally chemically bonded in the form of phosphate linkages.
    Type: Grant
    Filed: June 9, 1986
    Date of Patent: June 28, 1988
    Assignee: Texaco Inc.
    Inventors: Steven H. Vanderpool, Thomas T. McConnell
  • Catalytic removal of peroxide contaminants from tertiary butyl alcohol
    Patent number: 4742179
    Abstract: Motor-fuel grade tertiary butyl alcohol contaminated with residual amounts of tertiary butyl hydroperoxide and ditertiary butyl peroxide (which is prepared, for example, by reacting propylene with tertiary butyl hydroperoxide to form propylene oxide and a motor fuel grade tertiary butyl alcohol reaction product) can be effectively catalytically treated under mild conversion conditions including a temperature of about 80.degree. to 180.degree. C. with a base-treated hydrogenation catalyst from groups VIB or VIIIB of the Periodic Table in order to substantially selectively convert the two peroxide contaminants to tertiary butyl alcohol and to thereby provide a treated tertiary butyl alcohol product substantially free from contaminating quantities of such peroxides.
    Type: Grant
    Filed: November 3, 1986
    Date of Patent: May 3, 1988
    Assignee: Texaco Inc.
    Inventors: John R. Sanderson, Robert M. Gipson, Kenneth P. Keating, Edward T. Marquis
  • Mannich condensates as epoxy curing agents
    Patent number: 4736011
    Abstract: Mannich condensates prepared from an imidazole, formaldehyde and a polyalkylene polyamine are useful as curing agents for epoxy resins.Preferably, a diamine is reacted with the imidazole and formaldehyde, as illustrated by the following formula: ##STR1## wherein: R represents hydrogen or a C.sub.1 -C.sub.
    Type: Grant
    Filed: October 2, 1986
    Date of Patent: April 5, 1988
    Assignee: Texaco Inc.
    Inventors: Harold G. Waddill, George P. Speranza
  • Method for the selective manufacture of N,N'-dimethyl piperazine
    Patent number: 4727143
    Abstract: Piperazine, in solution in methanol may be substantially selectively converted to N,N'-dimethyl piperazine when using a catalyst composed of titania to which from about 0.5 to about 7 wt. % of phosphorous has been thermally chemically bonded in the form of phosphate linkages.
    Type: Grant
    Filed: June 9, 1986
    Date of Patent: February 23, 1988
    Assignee: Texaco Inc.
    Inventors: Steven H. Vanderpool, Peter S. Morford
  • Synthesis of vanadium/propylene glycol complexes
    Patent number: 4722919
    Abstract: Complexes made by reacting propylene glycol with a vanadium compound soluble therein at an elevated temperature. Mild stripping of the water subsequent to complex formation is preferred. The ratio of moles of propylene glycol to gram atoms of vanadium in the complex forming reaction ranges from 7:1 to 20:1.
    Type: Grant
    Filed: October 6, 1986
    Date of Patent: February 2, 1988
    Assignee: Texaco Inc.
    Inventors: Edward T. Marquis, John R. Sanderson
  • Selective recovery of carbon dioxide
    Patent number: 4710362
    Abstract: Carbon dioxide is selectively removed from an acid gas stream containing carbon dioxide and sulfur-containing components including hydrogen sulfide by counter-currently contacting the acid gas stream with an aqueous solution of a treating agent in order to selectively absorb carbon dioxide from the gas stream, the treating agent being an aqueous solution of a polyoxypropylene triamine having the formula: ##STR1## wherein R' represents a methylene group and R" represents hydrogen or methyl or ethyl and wherein the sum of x+y+z is a positive integer having a value of from about 4 to about 6.
    Type: Grant
    Filed: May 5, 1986
    Date of Patent: December 1, 1987
    Assignee: Texaco Inc.
    Inventor: Edward C. Y. Nieh
  • Catalytic decomposition of impurities in tertiary butyl alcohol
    Patent number: 4705903
    Abstract: Motor-fuel grade tertiary butyl alcohol which is prepared, for example, by reacting propylene with tertiary butyl hydroperoxide to form propylene oxide and a tertiary butyl alcohol reaction product contaminated with residual amounts of tertiary butyl hydroperoxide and ditertiary butyl peroxide can be effectively catalytically treated under mild conversion conditions including a temperature of about 80.degree. to 280.degree. C. with a catalyst composed of iron, copper, chromia and cobalt, or the oxides thereof in order to substantially selectively convert the two peroxide contaminants to tertiary butyl alcohol and to thereby provide a treated tertiary butyl alcohol product substantially free from contaminating quantities of such peroxides.
    Type: Grant
    Filed: November 20, 1986
    Date of Patent: November 10, 1987
    Assignee: Texaco Inc.
    Inventors: John R. Sanderson, John M. Larkin
  • Spinner for use in connecting pipe joints
    Patent number: 4683962
    Abstract: A spinner for rotating a pipe, such as a spinner mandrel, including a chambered frame having aligned openings through which the pipe can be inserted, drive assembly, such as a sprocket, rotatably mounted in the chamber, endless flexible spinning member, such as a multistrand roller chain, normally slackly encircling the pipe and the drive assembly, and clutch assembly, such as an idler sprocket in engagement with the multistrand roller chain and a hydraulically actuatable piston for laterally moving the idler sprocket, for decreasing the slack sufficiently to force the endless spinning member into frictional rotational driving engagement with the pipe. The preferred embodiment comprises a kelly spinner for use on an oil rig for independently spinning the kelly in order to more safely connect and disconnect drill pipe joints with the kelly during drilling operations.
    Type: Grant
    Filed: October 6, 1983
    Date of Patent: August 4, 1987
    Inventor: Martin E. True
  • Catalytic process for the preparation of linear polyethylenepolyamines with tungstophosphoric acid-or molybdophosphoric acid-on-titania catalysts
    Patent number: 4683335
    Abstract: This invention is directed to novel catalyst compositions based on titania pellets on which a minor amount of tungstophosphoric acid or molybdophosphoric acid is deposited. Also, the invention is directed to a process for preparing predominantly linear polyethylenepolyamines from ethylenediamine and monoethanolamine using the novel catalyst compositions.
    Type: Grant
    Filed: September 18, 1986
    Date of Patent: July 28, 1987
    Assignee: Texaco Inc.
    Inventors: John F. Knifton, Neal J. Grice
  • Preparation of N-substituted acrylamides
    Patent number: 4675441
    Abstract: This invention is directed to novel catalysts characterized as compounds of tin or zinc containing a direct metal-nitrogen bond. The novel catalysts are derived from a primary or secondary amine such as an alkyl amine, a heterocyclic amine, an aromatic amine, etc. The amine is reacted with a tin compound such as a tin chloride, a tin bromide, a tin oxide, or a tin alkoxide. Alternatively, the amine may be reacted with a zinc halide, a zinc alkoxide or an organozinc compound.In another aspect of the present invention, the novel catalysts are used to catalyze the reaction of an acrylate or methacrylate ester with an amine in order to prepare N-substituted acrylamides or methacrylamides in good yield and with high selectivity.
    Type: Grant
    Filed: March 6, 1986
    Date of Patent: June 23, 1987
    Assignee: Texaco Inc.
    Inventors: Edward E. McEntire, Kathy B. Sellstrom
  • Mud pump degassing and supercharging apparatus
    Patent number: 4668251
    Abstract: A modified drilling mud degasser is used to simultaneously degas drilling mud delivered thereto from a mud tank and to supercharge a mud pump to which the degassed mud is delivered. This is accomplished through the provision of a drilling mud degasser and supercharger comprising power driven degassing means for removing gas from drilling mud delivered thereto and pump means for delivering degassed drilling mud therefrom to said mud pump at a predetermined pump supercharging pressure, and means for recirculating drilling mud from the drilling mud degasser and supercharger to the mud tank when the mud pump is not operating.
    Type: Grant
    Filed: November 21, 1985
    Date of Patent: May 26, 1987
    Assignee: Burgess & Associates Mfg., Inc.
    Inventor: Harry L. Burgess
  • Catalyst composition
    Patent number: 4642303
    Abstract: The present invention is directed to catalyst compositions containing nickel, copper, chromium and iron which are useful for promoting reductive amination reactions, such as the conversion of feedstocks containing one or more hydroxyl groups to corresponding amine compounds including acyclic, cyclic and heterocyclic amines. For example, the catalyst compositions of the present invention may be utilized to convert monoethanolamine to ethylenediamine and piperazine, for the conversion of diethylene glycol to morpholine and diglycolamine, etc.
    Type: Grant
    Filed: December 27, 1985
    Date of Patent: February 10, 1987
    Assignee: Texaco Inc.
    Inventor: Terry L. Renken
  • Multi stage water deoxygenator
    Patent number: 4609385
    Abstract: A plural stage subatmospheric water deoxygenator of the type wherein oxygen-containing water charged through a water feedline is sprayed into a vacuum chamber for the removal of oxygen therefrom which also includes first stage vacuum chamber means including first stage scheduling means for simultaneously and continuously:1. Spraying charged pressured feedwater into the first stage vacuum chamber to initiate the removal of oxygen therefrom and2.
    Type: Grant
    Filed: May 6, 1985
    Date of Patent: September 2, 1986
    Assignee: Burgess & Associates Mfg., Inc.
    Inventor: Harry L. Burgess
  • Process for treating gasoline or gasohol by contact with KF or K.sub.2 CO.sub.3
    Patent number: 4539013
    Abstract: A water-containing fuel boiling in the gasoline boiling range, such as gasoline or gasohol, is contacted with a substantially saturated aqueous solution of potassium fluoride (or carbonate) plus solid potassium fluoride (or carbonate) and dry fuel is recovered.
    Type: Grant
    Filed: October 7, 1981
    Date of Patent: September 3, 1985
    Assignee: Texaco Inc.
    Inventor: William M. Sweeney