Patents by Inventor Charles T. Kresge
Charles T. Kresge 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: 5229341Abstract: There is provided a pillared, layered crystalline oxide material and a method for making this material. This material may be prepared by intercepting a swellable layered oxide before calcination. The intercepted material is swollen and pillared. If the material is not intercepted in this manner, it is transformed into a zeolite by calcination. The pillared material may have a large degree of catalytic activity, and it may have rather porous layers.Type: GrantFiled: December 20, 1991Date of Patent: July 20, 1993Assignee: Mobil Oil Corp.Inventors: Charles T. Kresge, Wieslaw J. Roth, Kenneth G. Simmons, James C. Vartuli
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Patent number: 5215737Abstract: There is provided a method for synthesizing a new synthetic composition of ultra-large pore crystalline material which can be used as a sorbent or catalyst component for conversion of organic and inorganic compounds. The crystalline material product of this method exhibits unusually large sorption capacity demonstrated by its benzene adsorption capacity of greater than about 15 grams benzene/100 grams at 50 torr and 25.degree. C. This material may have a hexagonal electron diffraction pattern that can be indexed with a d.sub.100 value greater than about 18 Angstrom Units and a hexagonal arrangement of uniformly sized pores with a maximum perpendicular cross section of a least about 13 Angstrom units. The reaction mixture for preparing this material contains silica-alumina hydrogel.Type: GrantFiled: February 27, 1992Date of Patent: June 1, 1993Assignee: Mobil Oil Corp.Inventors: Cynthia T. Chu, Charles T. Kresge, Kenneth G. Simmons
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Patent number: 5211934Abstract: There is provided a method for synthesizing a new synthetic composition of ultra-large pore crystalline material which can be used as a sorbent or catalyst component for conversion of organic and inorganic compounds. The crystalline material product of this method exhibits unusually large sorption capacity demonstrated by its benzene adsorption capacity of greater than about 15 grams benzene/100 grams at 50 torr and 25.degree. C. This material may have a hexagonal electron diffraction pattern that can be indexed with a d.sub.100 value greater than about 18 Angstom Units and a hexagonal arrangement of uniformly sized pores with a maximum perpendicular cross section of at least about 13 Angstrom Units. The reaction mixture for preparing this material contains a hydrolyzable source of alumina such as aluminum (isopropoxide).sub.2 acetoacetic ester chelate, and a hydrolyzable source of silica, such as tetraethylorthosilicate.Type: GrantFiled: February 12, 1992Date of Patent: May 18, 1993Assignee: Mobil Oil Corp.Inventors: Charles T. Kresge, Michael E. Leonowicz, Wieslaw J. Roth, James C. Vartuli
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Patent number: 5198203Abstract: This invention relates to a new synthetic composition of porous crystalline material and use thereof as sorbent and in catalytic conversion of organic and inorganic compounds. The new crystalline material exhibits a large sorption capacity demonstrated by its benzene adsorption capacity of greater than about 10 grams benzene/100 grams at 50 torr and 25.degree. C. and a particular, unique X-ray diffraction pattern.Type: GrantFiled: July 24, 1991Date of Patent: March 30, 1993Assignee: Mobil Oil Corp.Inventors: Charles T. Kresge, Michael E. Leonowicz, Wieslaw J. Roth, Kirk D. Schmitt, James C. Vartuli
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Patent number: 5196633Abstract: A process is provided for effecting catalytic conversion of an organic compound-containing feedstock to conversion product which comprises contacting said feedstock under catalytic conversion conditions with a catalyst comprising an active form of an inorganic, porous crystalline phase exhibiting, after calcination, a hexagonal arrangement of uniformly-sized pores having diameters of at least about 13, e.g., at least about 15, Angstrom Units and exhibiting a hexagonal electron diffraction pattern that can be indexed with a d.sub.100 value greater than about 18 Angstrom Units.Type: GrantFiled: March 18, 1992Date of Patent: March 23, 1993Assignee: Mobil Oil Corp.Inventors: Charles T. Kresge, Michael E. Leonowicz, Wieslaw J. Roth, James C. Vartuli
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Patent number: 5183561Abstract: There is provided a process for demetallizing hydrocarbon feedstocks, such as resids or shale oil. The process uses a catalyst comprising at least one hydrogenation metal, such as nickel and molybdenum, and an ultra-large pore oxide material. This ultra-large pore oxide material may have uniformly large pores, e.g., having a size of about 40 Angstroms in diameter.Type: GrantFiled: July 24, 1991Date of Patent: February 2, 1993Assignee: Mobil Oil Corp.Inventors: Charles T. Kresge, Michael E. Leonowicz, Wieslaw J. Roth, James C. Vartuli, Kathleen M. Keville, Stuart S. Shih, Thomas F. Degnan, Francis G. Dwyer, Michael E. Landis
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Patent number: 5174888Abstract: A process is provided for effecting catalytic conversion of an organic compound-containing feedstock to conversion product which comprises contacting said feedstock under catalytic conversion conditions with a catalyst comprising an active form of an inorganic, non-pillared crystalline phase exhibiting, after calcination, an X-ray diffraction pattern with at least one peak at a position greater than about 18 Angstrom Units d-spacing with a relative intensity of 100, and a benzene adsorption capacity of greater than about 15 grams benzene per 100 grams crystal at 50 torr and 25.degree. C.Type: GrantFiled: October 28, 1991Date of Patent: December 29, 1992Assignee: Mobil Oil Corp.Inventors: Charles T. Kresge, Michael E. Leonowicz, Wieslaw J. Roth, James C. Vartuli
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Patent number: 5108725Abstract: This invention relates to a method for synthesizing a new synthetic composition of ultra-large pore crystalline material which can be used as a sorbent or catalyst component for conversion of organic and inorganic compounds. The crystalline material product of this method exhibits unusually large sorption capacity demonstrated by its benzene adsorption capacity of greater than about 15 grams benzene/100 grams at 50 torr and 25.degree. C., a hexagonal electron diffraction pattern that can be indexed with a d.sub.100 value greater than about 18 Angstrom Units and a hexagonal arrangement of uniformly sized pores with a maximum perpendicular cross section of at least about 13 Angstrom units.Type: GrantFiled: December 10, 1990Date of Patent: April 28, 1992Assignee: Mobil Oil Corp.Inventors: Jeffrey S. Beck, Cynthia T. Chu, Ivy D. Johnson, Charles T. Kresge, Michael E. Leonowicz, Wieslaw J. Roth, James C. Vartuli
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Patent number: 5105042Abstract: There is provided a sulfated layered titanium oxide catalyst. Relatively long chain alkyl aromatic compounds are prepared by alkylating an alkylatable aromatic compound with a relatively long chain alkylating agent under alkylation reaction conditions in the presence of this sulfated layered material as alkylation catalyst. The layered material contains titanium oxide in the layers and oxide pillars separating the layers. The alkylation activity of the catalyst is increased by including sulfate ions in the layered material. This increased alkylation activity may be obtained by contacting the layered material with an aqueous solution of a sulfate compound such as sulfuric acid.Type: GrantFiled: November 21, 1990Date of Patent: April 14, 1992Assignee: Mobil Oil Corp.Inventors: Brent A. Aufdembrink, Charles T. Kresge, Quang N. Le, Joosup Shim, Stephen S. Wong
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Patent number: 5104515Abstract: A method is described for purifying an ultra-large pore crystalline material by contact with an aqueous solution having a hydroxyl concentration sufficient to solubilize an impurity phase but not the crystalline material. The purified crystalline material is also described, as is a hydrocarbon conversion process over the purified crystalline material.Type: GrantFiled: June 24, 1991Date of Patent: April 14, 1992Assignee: Mobil Oil Corp.Inventors: Cynthia T-W. Chu, Charles T. Kresge
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Patent number: 5102643Abstract: This invention relates to a new synthetic composition of ultra-large pore crystalline material, a method for its preparation and use thereof as sorbent and in catalytic conversion of organic compounds. The new crystalline material exhibits unusually large sorption capacity demonstrated by its benzene adsorption capacity of greater than about 15 grams benzene/100 grams anhydrous crystal at 50 torr and 25.degree. C.Type: GrantFiled: January 25, 1990Date of Patent: April 7, 1992Assignee: Mobil Oil Corp.Inventors: Charles T. Kresge, Michael E. Leonowicz, Wieslaw J. Roth, James C. Vartuli
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Patent number: 5098684Abstract: This invention relates to a new synthetic composition of ultra-large pore crystalline material and use thereof as sorbent and in catalytic conversion of organic and inorganic compounds. The new crystalline material exhibits unusually large sorption capacity demonstrated by its benzene adsorption capacity of greater than about 15 grams benzene/100 grams at 50 torr and 25.degree. C., a hexagonal electron diffraction pattern that can be indexed with a d.sub.100 value greater than about 18 Angstrom Units and a hexagonal arrangement of uniformly sized pores with a maximum perpendicular cross section of at least about 13 Angstrom units.Type: GrantFiled: December 10, 1990Date of Patent: March 24, 1992Assignee: Mobil Oil Corp.Inventors: Charles T. Kresge, Michael E. Leonowicz, Wieslaw J. Roth, James C. Vartuli
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Patent number: 5043508Abstract: Relatively long chain alkyl aromatic compounds are prepared by alkylating an alkylatable aromatic compound with a relatively long chain alkylating agent under alkylation reaction conditions in the presence of a layered material as an alkylation catalyst. The layered material contains titanate in the layers and oxide pillars separating the layers. The layers also contain vacancies and/or metals incorporated therein. The degree of alkylation is a function of the interplanar d-spacing of the pillared material, which is, in turn a function of the chain length of the swelling agent used to prepare the layered material.Type: GrantFiled: February 23, 1990Date of Patent: August 27, 1991Assignee: Mobil Oil CorporationInventors: Brent A. Aufdembrink, Charles T. Kresge, Quang N. Le, Joosup Shim, Stephen S. Wong
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Patent number: 5008481Abstract: There is provided a process for the aromatization of non-aromatic hydrocarbons having at least six carbon atoms. The non-aromatic feed is contacted with a catalyst which includes a base metal or noble metal which is incorporated into or onto a pillared layered silicate. A preferred pillared layered silicate is kenyaite containing interspathic silica, and a preferred base metal or noble metal is chromium.Type: GrantFiled: December 29, 1989Date of Patent: April 16, 1991Assignee: Mobil Oil CorporationInventors: Ivy D. Johnson, Pochen Chu, Charles T. Kresge
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Patent number: 4956517Abstract: There is provided a process for the dehydrogenation of saturated hydrocarbons having from 2 to 5 carbon atoms. The feed is contacted with a catalyst which includes a base metal or noble metal which is incorporated into or onto a pillared layered silicate. A preferred pillared layered silicate is kenyaite containing interspathic silica, and a preferred base metal or noble metal is chromium.Type: GrantFiled: December 29, 1989Date of Patent: September 11, 1990Assignee: Mobil Oil CorporationInventors: Ivy D. Johnson, Pochen Chu, Charles T. Kresge
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Patent number: 4912277Abstract: Relatively long chain alkyl aromatic compounds are prepared by alkylating an alkylatable aromatic compound with a relatively long chain alkylating agent under alkylation reaction conditions in the pressure of a layered material as an alkylation catalyst. The layered material contains titanate in the layers and oxide pillars separating the layers. The layers also contain vacancies and/or metals incorporated therein.Type: GrantFiled: May 30, 1989Date of Patent: March 27, 1990Assignee: Mobil Oil CorporationInventors: Brent A. Aufdembrink, Charles T. Kresge, Quang N. Le, Joosup Shim, Stephen S. Wong
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Patent number: 4899011Abstract: A new xylene isomerization process which is capable of converting ethylbenzene and non-aromatic exhaustively while selectively converting xylenes to thermal equilibrium in mixed EB/xylene feeds is proposed. The new process employs a two component catalyst system; each of the components contains a strong hydrogenation metal and a zeolite. The zeolite of each of the two components differs from the other in its selectivity for xylene isomerization and its capacity to deethylete ethylbenzene. That selectivity for xylene isomerization is described by xylene diffusion properties of the zeolite.Type: GrantFiled: January 15, 1986Date of Patent: February 6, 1990Assignee: Mobil Oil CorporationInventors: Yung F. Chu, Charles T. Kresge, Rene B. LaPierre
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Patent number: 4895638Abstract: A process for the catalytic cracking of heavy petroleum fractions into lower hydrocarbons, such as fuel products. The process comprises contacting the petroleum fractions at an elevated temperature with a cracking catalyst comprising (a) a layered metal oxide of the titanometallate type intercalated with an interspathic polymeric chalcogenide, e.g., polymeric silica and, optionally (b) a porous crystalline silicate component such as a large pore zeolite material.Type: GrantFiled: April 17, 1989Date of Patent: January 23, 1990Assignee: Mobil Oil CorporationInventors: Brent A. Aufdembrink, Thomas F. Degnan, Charles T. Kresge
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Patent number: 4889615Abstract: A catalytic cracking process especially useful for the catalytic cracking of high metals content feeds including resids in which the feed is cracked in the presence of a catalyst additive comprising a dehydrated magnesium-aluminum hydrotalcite which acts as a trap for vanadium as well as an agent for reducing the content of sulfur oxides in the regenerator flue gas. The additive is used in the form of a separate additive from the cracking catalyst particles in order to keep the vanadium away from the cracking catalyst and so preserve the activity of the catalyst.Type: GrantFiled: December 6, 1988Date of Patent: December 26, 1989Assignee: Mobil Oil CorporationInventors: Arthur A. Chin, Ivy D. Johnson, Charles T. Kresge, Michael S. Sarli
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Patent number: 4599475Abstract: An improved process is disclosed for the isomerization of xylenes over a zeolite which may contain a platinum group metal. The improvement resides in the use of ZSM-23 zeolite which exhibits enhanced selectivity which inhibits the production of undesired C.sub.9.sup.+ aromatic transalkylation by-products. ZSM-23 having pores substantially unobstructed by silica, such as that made from a forming mixture containing amorphous precipitated silica as a silica source, has been found to be particularly useful in the process of the present invention.Type: GrantFiled: June 19, 1985Date of Patent: July 8, 1986Assignee: Mobil Oil CorporationInventors: Charles T. Kresge, James C. Vartuli, Michael P. Nicoletti