Patents Assigned to Mobil Oil Corp.
  • Oligomerization of ethylene with a supported nickel catalyst
    Patent number: 5321190
    Abstract: There is provided a catalyst comprising nickel supported on a pillared (e.g., silica pillared) vacancy titanate material. There is also provided a method for preparing this catalyst. This method may involve impregnating a pillared vacancy titanate material with a nickel nitrate solution. There is further provided a process for oligomerizing ethylene using this catalyst.
    Type: Grant
    Filed: October 4, 1993
    Date of Patent: June 14, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Brent A. Aufdembrink, Margaret M. Wu
  • Process for the regioselective conversion of aromatics to para-disubstituted benzenes
    Patent number: 5321183
    Abstract: Processes for converting a wide variety of aromatic hydrocarbons, such as polyalkylaromatics, into commercially useful para-substituted aromatics such as para-xylene are disclosed. The aromatic hydrocarbon feed stream is first partially converted into toluene which is then subjected to a highly para-selective methylation process. The present invention therefore provides novel processes and catalysts for increasing the para-selectivity in the selective production of para-substituted aromatic compounds. From the description provided herein, those skilled in the art will appreciate that the catalysts and processes of the present invention provide greater para-selectivity at conversion rates unattained by previously known methods.
    Type: Grant
    Filed: September 2, 1992
    Date of Patent: June 14, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Clarence D. Chang, Paul G. Rodewald
  • Synthesis of zeolite films bonded to substrates, structures and uses thereof
    Patent number: 5310714
    Abstract: A method for synthesizing a zeolite bonded to a substrate utilizes a reaction mixture having a H.sub.2 O/YO.sub.2 molar ratio of at least 25 and Y is a tetravalent element, particularly silicon.A structure made according to this method includes a film of interconnected zeolite crystals bonded to a substrate and the structure is characterized by a value r representing the mg of zeolite/cm.sup.2 of substrate surface and a value e representing the coating efficiency as mg of bonded zeolite/mg of YO.sub.2 initially in the synthesis mixture; wherein r is at least 0.5 and e is at least 0.05.Processes are provided for separation, sorption, organic feedstock conversion and NO.sub.x conversion over the structure.
    Type: Grant
    Filed: July 8, 1992
    Date of Patent: May 10, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Robert K. Grasselli, Rudolph M. Lago, Richard F. Socha, John G. Tsikoyiannis
  • Method for preparing a pillared layered oxide material
    Patent number: 5310715
    Abstract: There is provided a method for preparing a pillared layered material, designated MCM-36, with a characteristic X-ray diffraction pattern. Upon calcination of the swollen, non-pillared form of this material, the layers collapse and condense upon one another in a somewhat disordered fashion to form a non-swellable material. However, when the swollen layered material is intercalated with polymeric oxide pillars, the layer separation is maintained, even after calcination. A quaternary ammonium silicate, such as tetramethylammonium silicate, is used as a pillaring agent for treating the swollen material.
    Type: Grant
    Filed: May 8, 1992
    Date of Patent: May 10, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Charles T. Kresge, Wieslaw J. Roth
  • Non-carcinogenic asphalts and asphalt blending stocks
    Patent number: 5308470
    Abstract: Non-carcinogenic asphalts and asphalt blending stocks are produced from reduced hydrocarbon feedstocks. Such non-carcinogenic products are produced by establishing a functional relationship between mutagenicity index and a physical property correlative of hydrocarbon type for the asphalt or asphalt blending stock and determining a critical physical property level which, when achieved, results in a product having a mutagenicity index of less than about 1.0. Process conditions are established so that a product stream achieving the desired physical property level can be produced. Non-carcinogenic asphalts and asphalt blending stocks are then processed utilizing the conditions so established.
    Type: Grant
    Filed: December 23, 1992
    Date of Patent: May 3, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Gary R. Blackburn, Carl R. Mackerer, Timothy A. Roy
  • Synthesis of crystalline ultra-large pore oxide materials
    Patent number: 5308602
    Abstract: There is provided a method for preparing crystalline ultra-large pore oxide materials. The materials are formed from reaction mixtures comprising an amphiphilic compound, such as a cetyltrimethylammonium compound, a source of at least one oxide, such as silica, and water. The concentration of amphiphilic compounds in these reaction mixtures is rather low. The addition of an inorganic salt, such as sodium bromide, to the reaction mixture may result in the increased thermal stability of the as-synthesized form of the crystalline material and may also alter the crystalline phase of the product.
    Type: Grant
    Filed: October 13, 1992
    Date of Patent: May 3, 1994
    Assignee: Mobil Oil Corp.
    Inventors: David C. Calabro, John Hen
  • Porous materials
    Patent number: 5304363
    Abstract: There is provided a porous material. A process for preparing this material involves adding an amphiphilic compound to the reaction mixture for preparing a crystalline oxide. The amphiphilic compound may be a quaternary ammonium cationic surfactant. These surfactants may be in the form of lamellar liquid crystals, and may function as templates for the formation of the present mesoporous oxide materials.
    Type: Grant
    Filed: July 2, 1992
    Date of Patent: April 19, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Jeffrey S. Beck, Charles T. Kresge, Sharon B. McCullen, Wieslaw J. Roth, James C. Vartuli
  • Catalyst comprising MCM-36 and a hydrogenation/dehydrogenation component
    Patent number: 5296428
    Abstract: There is provided a catalyst comprising MCM-36 and a hydrogenation/dehydrogenation component. A particular example of such a catalyst comprises MCM-36, nickel and tungsten.
    Type: Grant
    Filed: August 12, 1992
    Date of Patent: March 22, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Thomas F. Degnan, Kathleen M. Keville, Charles T. Kresge, David O. Marler, Brenda H. Rose, Wieslaw J. Roth, Kenneth G. Simons, deceased, Hye K. C. Timken, James C. Vartuli
  • Hydrocracking process with a catalyst comprising MCM-36
    Patent number: 5294330
    Abstract: There is provided a hydrocracking process with a catalyst comprising MCM-36.
    Type: Grant
    Filed: August 12, 1992
    Date of Patent: March 15, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Thomas F. Degnan, Kathleen M. Keville, Charles T. Kresge, David O. Marler, Brenda H. Rose, Wieslaw J. Roth, Hye Kyung C. Timken
  • Supported acid catalysts, their preparation and use in organic compound conversion
    Patent number: 5294578
    Abstract: A novel method to prepare a solid acid catalyst through the reaction of a metal-alkyl halide species and the surface hydroxyl group of a solid support is disclosed. Lewis acidic metals, e.g., B, Al and Ga, etc., can then be anchored on the surface via the formation of an oxygen-metal bond. The solids containing these metals can be used as catalysts that will catalyze organic compound coversion reactions, e.g., Friedel-Crafts type reactions, olefin oligomerization, aromatic alkylation and acylation, alkane alkylation and isomerization reactions.
    Type: Grant
    Filed: December 23, 1992
    Date of Patent: March 15, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Suzzy C. Ho, margaret M. Wu
  • Catalyst comprising MCM-36
    Patent number: 5292698
    Abstract: There is provided a catalyst comprising MCM-36 and a binder material.
    Type: Grant
    Filed: August 12, 1992
    Date of Patent: March 8, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Cynthia T-W. Chu, Charles T. Kresge, Wieslaw J. Roth, Kenneth G. Simmons, deceased, James C. Vartuli
  • Para-selective butylation of phenol over fairly large-pore zeolites
    Patent number: 5288927
    Abstract: There is provided a process for reacting phenol with butene or butanol over fairly large-pore zeolites to give butylphenol with high para-selectivity. Particular zeolites for use in this reaction include ZSM-12 and zeolite beta. A particular butene or butanol reactant is isobutanol. The product of this reaction may have a high content of the mono-alkylated, tert-butyl product.
    Type: Grant
    Filed: February 1, 1993
    Date of Patent: February 22, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Clarence D. Chang, Stuart D. Hellring
  • Synthesis of ZSM-35
    Patent number: 5288475
    Abstract: This invention relates to a method for synthesizing ZSM-35 using a 1,4-dimethylpiperazine directing agent.
    Type: Grant
    Filed: October 21, 1992
    Date of Patent: February 22, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Clarence D. Chang, Stuart D. Hellring
  • Demetalization process utilizing a catalyst comprising a non-pillared, delaminated layered silicate
    Patent number: 5284577
    Abstract: There is provided a catalyst comprising at least one hydrogenation metal, such as Ni and Mo, supported on a delaminated layered silicate, such as kenyaite, which has been swollen and calcined. There is also provided a method for making this catalyst. There is further provided a process for using this catalyst to demetalize a petroleum feedstock, such as a gas oil.
    Type: Grant
    Filed: February 22, 1993
    Date of Patent: February 8, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Stuart S. Shih, James C. Vartuli
  • Process for the selective hydrocracking of distillates to produce naphta range high octane isoparaffins
    Patent number: 5284985
    Abstract: The present invention provides a two-stage process for production of high-octane naphtha range isoparaffins from a feed rich in normal and/or slightly branched paraffins. In the first stage, the normal and/or slightly branched paraffins are selectively converted to multi-branched paraffins and then cracked in a second stage to yield naphtha range isoparaffins which can be blended into a high-octane gasoline pool.
    Type: Grant
    Filed: October 5, 1992
    Date of Patent: February 8, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Michael J. Girgis, Ying-Yen P. Tsao
  • Gallium-containing zeolite MCM-22
    Patent number: 5284643
    Abstract: There is provided a gallium-containing MCM-22 zeolite. There are also provided methods for making this zeolite and processes for using this zeolite as a catalyst for the conversion of organic molecules. Particular conversions are reforming and the dehydrogenation of methylcyclohexane to form toluene.
    Type: Grant
    Filed: December 10, 1992
    Date of Patent: February 8, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Roger A. Morrison, Mae K. Rubin
  • Direct crystallization of organic-swelled layered silicates and preparation of layered silicates containing interlayer polymeric chalcogenides therefrom
    Patent number: 5283043
    Abstract: There is provided a method for preparing organic-swelled layered silicate by direct crystallization from an alkaline reaction mixture containing a source of silicon oxide and organic onium compound, e.g., a cetyltrimethylammonium salt. Layered silicates containing interlayer polymeric chalcogenide are prepared by contacting the organic-swelled layered silicate with a source of polymeric chalcogenide, e.g., tetraethylorthosilicate.
    Type: Grant
    Filed: April 16, 1992
    Date of Patent: February 1, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Ivy D. Johnson, Michael E. Landis
  • Method for preparing a pillared layered oxide material
    Patent number: 5278116
    Abstract: There is provided a method for preparing a pillared layered material, designated MCM-36, with a characteristic X-ray diffraction pattern. Upon calcination of the swollen, non-pillared form of this material, the layers collapse and condense upon one another in a somewhat disordered fashion to form a non-swellable material. However, when the swollen layered material is intercalated with polymeric oxide pillars, the layer separation is maintained, even after calcination. Cerium-containing aluminum phosphate gel particles are used to pillar the layered material.
    Type: Grant
    Filed: May 4, 1992
    Date of Patent: January 11, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Charles T. Kresge, Wieslaw J. Roth
  • Method for preparing a pillared layered oxide material
    Patent number: 5278115
    Abstract: There is provided a method for preparing a pillared layered material, designated MCM-36, with a characteristic X-ray diffraction pattern. Upon calcination of the swollen, non-pillared form of this material, the layers collapse and condense upon one another in a somewhat disordered fashion to form a non-swellable material. However, when the swollen layered material is intercalated with polymeric oxide pillars, the layer separation is maintained, even after calcination. A combination of tetraethylorthosilicate and zirconium alkoxide is used as a pillaring agent for treating the swollen material.
    Type: Grant
    Filed: May 4, 1992
    Date of Patent: January 11, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Charles T. Kresge, Wieslaw J. Roth
  • High VI synthetic lubricants from thermally cracked slack wax
    Patent number: 5276229
    Abstract: A process for the production of synthetic lubricants having high viscosity index by oligomerizing a mixture of alpha-olefins produced from the thermal cracking of slack wax or recycled slack wax. The oligomerization is carried out with a reduced metal oxide catalyst, preferably a carbon monoxide reduced chromium oxide on a silica support. The olefin product from the thermal cracking step is purified, preferably by hydrotreating prior to the oligomerization step.
    Type: Grant
    Filed: June 24, 1992
    Date of Patent: January 4, 1994
    Assignee: Mobil Oil Corp.
    Inventors: J. Scott Buchanan, Margaret M. Wu