Patents by Inventor James L. Jezl
James L. Jezl 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).
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Patent number: 5080872Abstract: A reactor apparatus and method useful in regulating temperature in a heterogeneous reaction system is provided. The apparatus includes an elongated tube reactor packed with a bed of solid particles through which a reactant fluid phase is passed. A plurality of heat transfer medium passage tubes are disposed in the bed of solid particles with adjacent tubes spaced relative to each other about the longitudinal axis of the reactor and with the tubes being substantially transverse to reactant flow through the reactor. The temperature in the system may, in turn, be regulated by effecting flow of a heat transfer medium through the passage tubes.Type: GrantFiled: January 9, 1989Date of Patent: January 14, 1992Assignee: Amoco CorporationInventors: James L. Jezl, Robert F. Blanks, Michael A. Stasi
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Patent number: 4968655Abstract: Catalysts containing a reducible compound on a silica-containing support are provided for the conversion of a lower molecular weight alkane to more valuable, higher molecular weight hydrocarbons.Type: GrantFiled: February 23, 1987Date of Patent: November 6, 1990Assignee: Amoco CorporationInventors: James L. Jezl, Glenn O. Michaels, Michael J. Spangler, Mark L Winzenburg
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Patent number: 4814539Abstract: The catalyzed oxidative coupling of a lower molecular weight alkane to more valuable, higher molecular weight hydrocarbons and oxidative coupling catalysts for use therein are disclosed.Type: GrantFiled: February 28, 1985Date of Patent: March 21, 1989Assignee: Amoco CorporationInventors: James L. Jezl, Glenn O. Michaels, Michael J. Spangler, Mark L. Winzenburg
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Patent number: 4778826Abstract: A method for converting a lower molecular weight alkane to synthesis gas to higher molecular weight materials in the presence of a Fischer-Tropsch catalyst is disclosed.Type: GrantFiled: February 26, 1987Date of Patent: October 18, 1988Assignee: Amoco CorporationInventors: James L. Jezl, Robert F. Blanks, Michael A. Stasi, Imre Puskas
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Patent number: 4754093Abstract: The catalyzed oxidative coupling of a lower molecular weight alkane to move valuable, higher molecular weight hydrocarbons is disclosed.Type: GrantFiled: February 28, 1985Date of Patent: June 28, 1988Assignee: Amoco CorporationInventors: James L. Jezl, Glenn O. Michaels, Michael J. Spangler
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Patent number: 4754091Abstract: The catalyzed oxidative coupling of a lower molecular weight alkane to higher molecular weight hydrocarbons which are then oligomerized to form aromatic hydrocarbons is disclosed.Type: GrantFiled: February 28, 1985Date of Patent: June 28, 1988Assignee: Amoco CorporationInventors: James L. Jezl, Glenn O. Michaels, Michael J. Spangler
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Patent number: 4751336Abstract: The catalyzed oxidative coupling of a lower molecular weight alkane to higher molecular weight hydrocarbons which are then oxidatively dehydrogenated to form unsaturated aliphatic hydrocarbons is disclosed.Type: GrantFiled: February 28, 1985Date of Patent: June 14, 1988Assignee: Amoco CorporationInventors: James L. Jezl, Glenn O. Michaels, Michael J. Spangler
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Patent number: 4654458Abstract: A method for converting a lower molecular weight alkane to synthesis gas to higher molecular weight materials comprising (a) passing a reaction mixture comprising the alkane and air at a pressure of from about 1 to about 50 pounds per square inch gauge through an elongated first reactor packed with a bed of refractory particles having three zones: (1) an upstream zone for heating the mixture, (2) a middle zone wherein alkane and oxygen react exothermically to produce hot CO, H.sub.2, and N.sub.2 and (3) a downstream zone for cooling the hot CO, H.sub.2, and N.sub.2 ; and (b) passing cooled CO, H.sub.2, and N.sub.2 to a reactor packed with Fischer-Tropsch catalyst to form higher molecular weight materials.Type: GrantFiled: September 26, 1985Date of Patent: March 31, 1987Assignee: Amoco CorporationInventors: James L. Jezl, Robert F. Blanks, Michael A. Stasi, Imre Puskas
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Patent number: 4365045Abstract: 1.Type: GrantFiled: January 11, 1965Date of Patent: December 21, 1982Assignee: Standard Oil Company (Indiana)Inventors: Abraham Schneider, Habet M. Khelghatian, Louise D. Hague, James L. Jezl
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Patent number: 4311612Abstract: High activity catalyst component for olefin polymerization comprises reaction product of Group IVB-VB metal-containing component with product prepared by reaction of components comprising magnesium alcoholate and halocarboxylic acid, provided that when such components contain less than an effective amount of halogen, reaction product is reacted with halogenating agent. Magnesium alcoholate-halocarboxylic acid reaction product can be obtained in hydrocarbon-soluble or -insoluble form such that catalyst component preparation involves a liquid-liquid or liquid-solid system as desired. Catalysts comprising the above-described component and organometallic promoter are sufficiently active to eliminate need for removal of catalyst residues from polyolefins produced in the presence thereof.Type: GrantFiled: August 25, 1980Date of Patent: January 19, 1982Assignee: Standard Oil Company (Indiana)Inventors: David E. Boone, James L. Jezl
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Patent number: 4301256Abstract: Substantially crystalline block polymers comprising a homo-polymer block of an alpha-olefin having 2-8 carbon atoms and attached thereto a copolymer block of at least 2 alpha-olefins containing 2-2 carbon atoms, one of which may be the same or different from the alpha-olefin from which the homo-polymer block is prepared. Such block polymers are prepared in the presence of a stereospecific catalyst system by contacting the aforesaid alpha-olefin with said catalyst system to form the solid, substantially crystalline homo-polymer block, and then contacting the same catalyst system with the aforesaid mixture of said alpha-olefins. In an embodiment between about 55 and 95% of the polymerization time is expended in preparing the homo-polymer block. When preparing the copolymer block, one uses at least as much of the least reactive alpha-olefin, or more of the same, as one uses of the more reactive monomers.Type: GrantFiled: March 18, 1975Date of Patent: November 17, 1981Assignee: Standard Oil Company (Indiana)Inventor: James L. Jezl
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Patent number: 4189458Abstract: Thermoplastic polymer particles are converted to pellets by depositing the powder onto a moving platform, melting the particles and transferring the melted polymer to a pelletizer.Type: GrantFiled: December 29, 1977Date of Patent: February 19, 1980Assignee: Standard Oil Company a corporation of IndianaInventor: James L. Jezl
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Patent number: 4129701Abstract: Apparatus and process is herein disclosed by which a polymerizable monomer or mixture thereof can be economically and efficiently converted to polymeric substances with a high yield catalyst and, optionally, co-catalyst by a vapor phase, essentially isobaric, polymerization process using a horizontal, stirred-bed, quench-cooled, essentially total reactor off-gas recycle reactor.Type: GrantFiled: December 19, 1975Date of Patent: December 12, 1978Assignee: Standard Oil Company (Indiana)Inventors: James L. Jezl, Edwin F. Peters
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Patent number: 4101289Abstract: Apparatus for the vapor phase polymerization of at least one polymerizable monomer comprising:(a) a horizontal, stirred reactor of substantially circular cross section containing a centrally-located drive shaft extending longitudinally through said reactor to which are attached a plurality of adjacently located paddles, which paddles cause essentially no forward or backward movement of the particulate matter contained in said reactor and extend transversely within and to a short distance from the internal surfaces of said reactor, said reactor being divided into two or more individually polymerization-temperature controllable polymerization sections by one or more barriers constructed to allow free gas mixing within said reactor and control particulate movement between said sections;(b) driving means for said drive shaft;(c) one or more outlets for removal of reactor off-gases situated along the topward part of said reactor;(d) one or more vapor recycle inlets situated along the bottomward portion of said reaType: GrantFiled: January 19, 1977Date of Patent: July 18, 1978Assignee: Standard Oil Company a corporation of IndianaInventors: James L. Jezl, Edwin F. Peters
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Patent number: 4099335Abstract: A process for drying polymer slurry produced in slurry or bulk phase polymerization comprising removing, in a gas stream which contains polymerizable monomer, easily vaporizable liquid components from a stirred drying zone containing a large, in comparison with the volume of slurry from said polymerization added to said zone, amount of solid polymer particulate to form substantially dry polymer particulate using in essential part polymerization heat generated in said zone by carrying out therein a fraction of the overall amount of polymerization. The resulting polymer can be finished conventionally or by transferring said particulate to a melting zone in which an easily transferable polymer melt is formed, said melting accomplished in substantial part using polymerization heat generated in said melting zone by a fraction of the overall amount of polymerization.Type: GrantFiled: November 19, 1976Date of Patent: July 11, 1978Assignee: Standard Oil Company (Indiana)Inventors: James L. Jezl, Edwin F. Peters
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Patent number: 3979370Abstract: Simultaneous precise addition of a plurality of non-compatible substances to a mixing zone is achieved by forming a dispersion containing the non-compatible substances and subsequently injecting the dispersion into such zone.Type: GrantFiled: April 16, 1975Date of Patent: September 7, 1976Assignee: Standard Oil Company (Indiana)Inventors: Edwin F. Peters, James L. Jezl
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Patent number: 3971768Abstract: An essentially total reactor off-gas recycle process essentially isobaric in nature is herein disclosed for use in polymerizations wherein a polymerizable monomer or a mixture thereof is polymerized in a vapor state polymerization process using a stirred-bed, quench-cooled, horizontal reactor.Type: GrantFiled: December 16, 1974Date of Patent: July 27, 1976Assignee: Standard Oil Company (Indiana)Inventors: Edwin F. Peters, Michael J. Spangler, Glenn O. Michaels, James L. Jezl
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Patent number: 3970611Abstract: A melt finish process is disclosed herein for working up solid, particulate polymer from a vapor state polymerization reactor, which reactor employs high yield catalysts, whereby the polymer is moved out of the reactor and into a post polymerization zone characterized by essentially adiabatic polymerization and the heat of such polymerization is used in raising the temperature of and melting said solid, particulate polymer to form molten polymer for further processing.Type: GrantFiled: December 16, 1974Date of Patent: July 20, 1976Assignee: Standard Oil CompanyInventors: James L. Jezl, Edwin F. Peters
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Patent number: 3965083Abstract: A method is herein disclosed by which a polymerizable monomer or a mixture thereof can be economically and efficiently converted to polymeric substances with a high yield catalyst in a vapor phase polymerization process using a stirred-bed, quench-cooled, horizontaL reactor together with essentially total reactor off-gas recycle and melt finishing. The method is further characterized by being essentially isobaric at least up to the polymer finishing steps.Type: GrantFiled: December 16, 1974Date of Patent: June 22, 1976Assignee: Standard Oil CompanyInventors: James L. Jezl, Edwin F. Peters, Robert D. Hall, John W. Shepard
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Patent number: RE30148Abstract: A melt finish process is disclosed herein for working up solid, particulate polymer from a vapor state polymerization reactor, which reactor employs high yield catalysts, whereby the polymer is moved out of the reactor and into a post polymerization zone characterized by essentially adiabatic polymerization and the heat of such polymerization is used in raising the temperature of and melting said solid, particulate polymer to form molten polymer for further processing.Type: GrantFiled: July 17, 1978Date of Patent: November 13, 1979Assignee: Standard Oil Company (Indiana)Inventors: James L. Jezl, Edwin F. Peters