Patents Represented by Attorney Cortlan R. Schupbach, Jr.
  • Patent number: 4176171
    Abstract: An improved method for increasing alumina pore volumes said alumina being produced by the hydrolysis of aluminum alkoxides, the improvement comprising diluting the aluminum alkoxide, prior to entering the hydrolysis reactor, with an alkanol containing from 2 to 8 carbon atoms and injecting the dilute solution into the reactor at high velocities.
    Type: Grant
    Filed: August 14, 1978
    Date of Patent: November 27, 1979
    Assignee: Continental Oil Company
    Inventors: Larry L. Bendig, John F. Scamehorn, Donald E. Stowell
  • Patent number: 4175040
    Abstract: A centrifugal oil-water separator comprising an inner spinning bowl having openings near the lower outer periphery for passage of water therefrom into an outer bowl which remains stationary. The oil-water mixture is passed to the upper center of the spinning bowl with separation of the oil and water therein, concentrating the oil near the top of the inner bowl and disposable water is removed from the outer bowl.
    Type: Grant
    Filed: August 28, 1978
    Date of Patent: November 20, 1979
    Assignee: Continental Oil Company
    Inventors: John K. Sammons, Charles H. Fox, Jr.
  • Patent number: 4168746
    Abstract: Data useful for evaluating the effectiveness of or designing an enhanced recovery process said process involving mobilizing and moving hydrocarbons through a hydrocarbon bearing subterranean formation from an injection well to a production well by injecting a mobilizing fluid into the injection well, comprising(a) determining hydrocarbon saturation in a volume in the formation near a well bore penetrating formation,(b) injecting sufficient mobilizing fluid to mobilize and move hydrocarbons from a volume in the formation near the well bore, and(c) determining the hydrocarbon saturation in a volume including at least a part of the volume of (b) by an improved single well surfactant method comprising injecting 2 or more slugs of water containing the primary tracer separated by water slugs containing no primary tracer.
    Type: Grant
    Filed: March 2, 1978
    Date of Patent: September 25, 1979
    Assignee: Continental Oil Company
    Inventor: Clyde Q. Sheely
  • Patent number: 4165257
    Abstract: In an enhanced recovery process involving flooding of subterranean formations with aqueous mixtures of biopolymers, filterability of the biopolymer is synergistically enhanced by treatment with ESPERASE.RTM. enzyme at a pH range of 12.5 to 13.0. The range is narrow and exclusive since pHs as high as 12.1 give poor results. The biopolymer can be any one containing debris which must be reduced by the enzyme.
    Type: Grant
    Filed: March 13, 1978
    Date of Patent: August 21, 1979
    Assignee: Continental Oil Company
    Inventor: Olaf M. Stokke
  • Patent number: 4160060
    Abstract: A means is provided for protecting off-shore platforms from damage to interior portions by inadvertantly dropped heavy objects such as drill collars. The invention comprises a crash barrier having a penetration resistant mat overlying a foamed thermoplastic or rubber shock absorbant. The invention has several advantages over previously used wooden boards such as reduced weight for equivalent protection. The foamed thermoplastic or rubber is provided with flame resistant materials such that combustion is not supported in the event of a fire.
    Type: Grant
    Filed: January 23, 1978
    Date of Patent: July 3, 1979
    Assignee: Continental Oil Company
    Inventor: Douglas Bynum, Jr.
  • Patent number: 4147625
    Abstract: Trimethylhydroquinone (TMHQ) which is discolored in organic solution because of air oxidation can be made nearly colorless by addition of small amounts of alkali metal borohydride to the discolored solution. Products remaining in the TMHQ solution after discoloration removal can be extracted by water wash. This technique represents a very simple and efficient method for removing discoloration which has proved troublesome in the prior art.
    Type: Grant
    Filed: April 26, 1978
    Date of Patent: April 3, 1979
    Assignee: Continental Oil Company
    Inventor: John R. Dodd
  • Patent number: 4145496
    Abstract: Polymer buildup in polymerization reactions during vinyl chloride polymerizations is greatly reduced by applying a water dispersion of alumina and oxalyl bis(benzylidenehydrazide) (OABH) to the reactor surfaces exposed to the polymerization medium prior to carrying out the polymerization. Long term effects of the buildup preventor can be obtained by applying a caustic wash to the reactor walls, prior to applying the oxalyl bis(benzylidenehydrazide) and alumina dispersion. The effect of the OABH/alumina and caustic is synergistic since the preventative effect is greater than either material used alone.
    Type: Grant
    Filed: July 3, 1978
    Date of Patent: March 20, 1979
    Assignee: Continental Oil Company
    Inventors: Dean R. Weimer, Kenneth D. Freshour
  • Patent number: 4143917
    Abstract: Shale oil is recovered from a horizontal oil shale deposit having an exposed vertical surface by:(a) tunneling a horizontal sloping tunnel under a portion of the deposit, optionally using material removed from the tunnel to form a service terrace,(b) shaping and lining the floor of the tunnel to form a covered sump sloping to the tunnel mouth,(c) explosively rubblizing the roof and walls of the tunnel, and(d) fireflooding the rubblized zone to retort the kerogen which produces shale oil at the tunnel face through the sump.The fireflood is preferably by wet combustion which can be either forward or reverse combustion. Oxygen containing gas can be injected through a vertical bore from the surface or from the tunnel face. In one embodiment, the fireflood is prevented from channeling across the top of the rubblized zone by leaving segments of the roof to project downward at intervals. The vertical surface of the deposit can be naturally exposed or exposed by a large diameter bore hole or a vertical mine shaft.
    Type: Grant
    Filed: October 11, 1977
    Date of Patent: March 13, 1979
    Assignee: Continental Oil Company
    Inventor: Glenn A. Sweany
  • Patent number: 4143540
    Abstract: The integrity of corrosion prevention sheaths of corrosive-resistant metal employed to prevent member corrosion on off-shore platforms is monitored by incorporation of a pressure sensing line sealed into the zone between the sheath and the member. This apparatus allows monitoring members in the splash zone as well as stressed areas such as weld joints which are subject to corrosive environments.
    Type: Grant
    Filed: December 27, 1977
    Date of Patent: March 13, 1979
    Assignee: Continental Oil Company
    Inventors: Marvin L. Peterson, Donald H. Oertle
  • Patent number: 4141922
    Abstract: A method is provided for the removal of 2-chloroethanol from 1,2-dichloroethane (EDC) mixtures containing chloral comprising(1) placing the EDC/2-chloroethanol mixture at a pH of at least 10,(2) partially distilling said basic mixture to remove ethylene oxide from the resulting mixture of (1),(3) mixing the distillate with water in contact with a strong non-halogen acid catalyst to form an aqueous and organic phase, and(4) recovering the reaction product of (3) while separating and disposing the aqueous phase.
    Type: Grant
    Filed: February 21, 1978
    Date of Patent: February 27, 1979
    Assignee: Continental Oil Company
    Inventor: Ronald J. Convers
  • Patent number: 4140773
    Abstract: High macro-pore content spheres (>1000A) are produced by use of a rotating wheel, wherein dry alumina is dropped onto the wheel under a peptizing spray misted onto the wheel through an atomizing device. Compressive stresses normally encountered in procedures such as pelletizing are avoided, thereby preserving macro-pores. Size of spheres can be adjusted by altering, for example, the angle at which the wheel rotates.
    Type: Grant
    Filed: February 24, 1978
    Date of Patent: February 20, 1979
    Assignee: Continental Oil Company
    Inventors: Donald E. Stowell, Larry L. Bendig, John F. Scamehorn
  • Patent number: 4135386
    Abstract: This invention provides a method for monitoring early formation of cracks in permeable or porous materials which comprises affixing a frangible fluid impermeable enclosure to the permeable or porous surface to be monitored such that a crack forming in the permeable material will destroy the integrity of the frangible fluid impermeable enclosure and provide a passage for a fluid to flow between the environment and the enclosed space, then sealing a fluid passageway in fluid communication from the enclosed space to a source of pressure different than ambient at the permeable material and to a pressure sensor; then imparting a pressure different than ambient to the enclosed space through the fluid passageway and thereafter monitoring the internal pressure in the enclosed space and fluid passageway with a pressure sensor such that a crack in the permeable material will destroy the integrity of the enclosed space and allow passage of fluid between the environment and the enclosed space which is detected by the pre
    Type: Grant
    Filed: December 27, 1977
    Date of Patent: January 23, 1979
    Assignee: Continental Oil Company
    Inventors: Marvin L. Peterson, Donald H. Oertle
  • Patent number: 4126750
    Abstract: High pressure methylation of 2,6-xylenol to produce 2,3,6-trimethylphenol is accomplished by maintaining the methanol/2,6-xylenol feed at temperature and pressures sufficient to keep the feed liquid in a reactor head then forcing the feed through orifices, expanding the feed into a mixed vapor liquid phase, the feed after expansion being in the range of reaction conditions of pressure and temperature while in the presence of the catalyst where the reaction takes place. The process avoids the current problems of uneven feed mixtures and catalyst tube plugging.
    Type: Grant
    Filed: December 5, 1977
    Date of Patent: November 21, 1978
    Assignee: Continental Oil Company
    Inventors: Ronald L. Poe, John F. Scamehorn, Cortlan R. Schupbach
  • Patent number: 4126568
    Abstract: Flexible polyvinyl chloride insulation for wire is made conductive at elevated temperatures activating a sensing conductor and eliminating thermostatic controls. Conduction through the insulation is imparted by adding compounds such as nonylphenoxy poly (ethyleneoxy) ethanol, certain metallic salts of alcohol sulfates, mixed ortho, parasulfonamides, and liquid crystal compounds.
    Type: Grant
    Filed: May 13, 1977
    Date of Patent: November 21, 1978
    Assignee: Continental Oil Company
    Inventor: Charles H. Rogers
  • Patent number: 4126749
    Abstract: Aluminas derived from aluminum alkoxide hydrolysis are calcined at 1150.degree.-1800.degree. F for a period of time ranging 0.5 to about 12 hours to develop specific pore volume and pore diameter characteristics prior to use as a catalyst in the vapor phase and liquid phase methylation of phenol, monosubstituted, and di-substituted phenols. The calcining at higher temperatures gives increased catalyst life, lower isomerization and disproportionation, and higher orthomethylation activity.
    Type: Grant
    Filed: July 20, 1977
    Date of Patent: November 21, 1978
    Assignee: Continental Oil Company
    Inventor: Bruce E. Leach
  • Patent number: 4125736
    Abstract: This invention provides an improved process for the disproportionation of highly alkylated phenols with phenol using an improved magnesium oxide catalyst promoted with tungsten oxide, silica sol, and sodium silicate. The method provides a catalyst having a high reactivity, high surface area, and high crush strength compared to known magnesium oxide, tungsten oxide catalysts. The catalyst is useful in phenol methylation and disproportionation. The effect of silica sol and sodium silicate is synergistic since these materials alone will not catalyze these reactions. Surprisingly, the catalyst will not disproportionate olefins.
    Type: Grant
    Filed: November 17, 1977
    Date of Patent: November 14, 1978
    Assignee: Continental Oil Company
    Inventor: Bruce E. Leach
  • Patent number: 4120881
    Abstract: Predominantly aliphatic lower hydrocarbon materials may be obtained from carbonaceous solids by a sequence of steps comprising gasifying the carbonaceous solids, combining the gasification product stream with first and second internal recycle streams, separating certain impurities from the combined stream followed by cooling to liquefy and separate the hydrocarbon materials, directly reacting the remaining carbon monoxide and hydrogen in the presence of a catalyst to produce a first internal recycle stream, fractionating the separated hydrocarbon materials to separate and recover the predominantly aliphatic lower hydrocarbon materials from the higher hydrocarbon materials, subjecting the higher hydrocarbon materials to steam cracking to produce a second internal recycle stream, and recycling the internal recycle streams for combination with the gasification product stream as noted above.
    Type: Grant
    Filed: January 9, 1975
    Date of Patent: October 17, 1978
    Assignee: Continental Oil Company
    Inventors: Charles M. Starks, Robert G. Jackson, David V. Porchey, Dennis J. Royer
  • Patent number: 4118623
    Abstract: A method is provided for determining the shale content of mined coal by monitoring the thorium content of the coal. Thorium content and ash content are shown to be related whereby a direct reading of the thorium will be indicative of the shale content of the coal and the ash content of the coal. The method utilizes the natural radiation of thorium to provide the continuous or selective control of mined coals.
    Type: Grant
    Filed: March 31, 1977
    Date of Patent: October 3, 1978
    Assignee: Continental Oil Company
    Inventors: Walter H. Fertl, Preston L. Gant
  • Patent number: 4116882
    Abstract: Alumina spheres are formed by peptizing alumina slurries, centrifugates, and filtercakes, aging and dropping the peptized material through a hydrocarbon filled column. The improved method avoids the drying and reslurrying of alumina powders currently used and provides a method whereby harmful ions such as chloride and sulfates can be excluded from the alumina.
    Type: Grant
    Filed: December 14, 1977
    Date of Patent: September 26, 1978
    Assignee: Continental Oil Company
    Inventors: Larry L. Bendig, Cathy S. Siemsen, Donald E. Stowell
  • Patent number: 4117106
    Abstract: Aluminum alkoxides are hydrolyzed at low temperatures using high injection velocities and are then vacuum stripped at or below 80.degree. C to produce .beta.-alumina trihydrates in large proportion. The .beta.-alumina trihydrate can then be converted to eta alumina.
    Type: Grant
    Filed: August 1, 1977
    Date of Patent: September 26, 1978
    Assignee: Continental Oil Company
    Inventors: Larry L. Bendig, John F. Scamehorn