Patents by Inventor Robert L. Patton
Robert L. Patton 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: 5516957Abstract: This invention presents a novel MgAPSO molecular sieve, containing a critical range of magnesium in the sieve framework and having a small crystallite size, which is particularly active for hydrocarbon conversion. The sieve advantageously is incorporated, along with a platinum-group metal, into a catalyst formulation which is useful for isomerization. When utilized in a process for isomerizing a non-equilibrium mixture of xylenes containing ethylbenzene, a greater yield of para-xylene is obtained compared to prior-art processes.Type: GrantFiled: May 17, 1995Date of Patent: May 14, 1996Assignee: UOPInventors: Hermant W. Dandekar, David A. Lesch, Thomas M. Reynolds, Robert L. Patton, Stephen T. Wilson, Gregory J. Gajda
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Patent number: 5478787Abstract: This invention presents a novel MgAPSO molecular sieve, containing a critical range of magnesium: in the sieve framework and having a small crystallite size, which is particularly active for hydrocarbon conversion. The sieve advantageously is incorporated, along with a platinum-group metal, into a catalyst formulation which is useful for isomerization. When utilized in a process for isomerizing a non-equilibrium mixture of xylenes containing ethylbenzene, a greater yield of para-xylene is obtained compared to prior-art processes.Type: GrantFiled: February 28, 1994Date of Patent: December 26, 1995Assignee: UOPInventors: Hemant W. Dandekar, David A. Lesch, Thomas M. Reynolds, Robert L. Patton, Stephen T. Wilson, Gregory J. Gajda
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Patent number: 5434326Abstract: This invention presents a novel MgAPSO molecular sieve, containing a critical range of magnesium in the sieve framework and having a small crystallite size, which is particularly active for hydrocarbon conversion. The sieve advantageously is incorporated, along with a refractory inorganic oxide, into a catalyst formulation which is useful for alkylation. When utilized in a process for alkylating an aromatic with an olefin, for example in the production of cumene or ethylbenzene, the sieve catalyst shows favorable selectivity.Type: GrantFiled: December 30, 1993Date of Patent: July 18, 1995Assignee: UOPInventors: Gregory J. Gajda, Robert L. Patton, Stephen T. Wilson
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Patent number: 5276236Abstract: This invention presents a novel MgAPSO molecular sieve, containing a critical range of magnesium in the sieve framework, which is particularly active for hydrocarbon conversion. The sieve advantageously is incorporated, along with a platinum-group metal, into a catalyst formulation which is useful for isomerization. When utilized in a process for isomerizing a non-equilibrium mixture of xylenes containing ethylbenzene, a greater yield of para-xylene is obtained compared to prior-art processes.Type: GrantFiled: February 16, 1993Date of Patent: January 4, 1994Assignee: UOPInventors: Robert L. Patton, Stephen T. Wilson, Gregory J. Gajda
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Patent number: 5240891Abstract: This invention presents a novel MgAPSO molecular sieve, containing a critical range of magnesium in the sieve framework, which is particularly active for hydrocarbon conversion. The sieve advantageously is incorporated, along with a platinum-group metal, into a catalyst formulation which is useful for isomerization. When utilized in a process for isomerizing a non-equilibrium mixture of xylenes containing ethylbenzene, a greater yield of para-xylene is obtained compared to prior-art processes.Type: GrantFiled: December 26, 1991Date of Patent: August 31, 1993Inventors: Robert L. Patton, Stephen T. Wilson, Gregory J. Gajda
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Patent number: 5114563Abstract: The catalytic conversion of hydrocarbon feedstocks is affected under effective conversion process conditions in the presence of silicoaluminophosphate-based catalyst compositions.Type: GrantFiled: November 27, 1990Date of Patent: May 19, 1992Assignee: UOPInventors: Brent M. Lok, Celeste A. Messina, Robert L. Patton, Richard T. Gajek, Thomas R. Cannan, Edith M. Flanigen
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Patent number: 5057295Abstract: Molecular sieve compositions having three-dimensional microporous framework structures of BO.sub.2, AlO.sub.2, PO.sub.2 and SiO.sub.2 tetrahedral oxide units are disclosed. These molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula:mR:(B.sub.w Al.sub.x P.sub.y Si.sub.z)O.sub.2wherein "R" represents at least one organic templating agent present in the intracrystalline port system; "m" represents the molar amount of "R" present per mole of (B.sub.w Al.sub.x P.sub.y Si.sub.z)O.sub.2 ; and "w", "x", "y" and "z" represent the mole fraction of boron, aluminum, phosphorus and silicon, respectively, present as tetrahedral oxides. Their use as adsorbents, catalysts, etc. is also disclosed.Type: GrantFiled: March 28, 1986Date of Patent: October 15, 1991Assignee: UOPInventors: Edith M. Flanigen, Richard T. Gajek, Brent M. T. Lok, Robert L. Patton, Stephen T. Wilson
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Patent number: 5032368Abstract: Molecular sieve compositions having three-dimensional microporous framework structures of GaO.sub.2, AlO.sub.2 and PO.sub.2 tetrahedral oxide units are disclosed. These molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula:mR:(Ga.sub.x Al.sub.y P.sub.z)O.sub.2wherein "R" represents at least one organic templating agent present in the intracrystalline pore system; "m" represents the molar amount of "R" present per mole of (Ga.sub.x Al.sub.y P.sub.z)O.sub.2 ; and "x", "y" and "z" represent the mole fractions of gallium, aluminum and phosphorus, respectively, present as tetrahedral oxides. Their use as adsorbents, catalysts, etc. is also disclosed.Type: GrantFiled: February 19, 1986Date of Patent: July 16, 1991Assignee: UOPInventors: Edith M. Flanigen, Brent M. T. Lok, Robert L. Patton, Stephen T. Wilson
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Patent number: 5013535Abstract: Aluminophosphate-based molecular sieve compositions having the crystal structure of AlPO.sub.4 -54 are stabilized against framework collapse or conversion to other crystal structures by treatment in their hydrated state with boric acid or salts thereof. The stabiized products are characterized, in addition to their essential AlPO.sub.4 -54 structure, by the presence of at least 6 ppm of extraneous boron.Type: GrantFiled: April 20, 1989Date of Patent: May 7, 1991Assignee: UOPInventors: Robert L. Bedard, Robert L. Patton, Stephen T. Wilson
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Patent number: 4992250Abstract: Molecular sieve compositions having three-dimensional microporous framework structures of GeO.sub.2, AlO.sub.2, PO.sub.2 and SiO.sub.2 tetrahedral oxide units are disclosed. These molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula:mR:(Ge.sub.w Al.sub.x P.sub.y Si.sub.z)O.sub.2wherein "R" represents at least one organic templating agent present in the intracrystalline pore system; "m" represents the molar amount of "R" represent per mole of (Ge.sub.w Al.sub.x P.sub.y Si.sub.z)O.sub.2 ; and "w", "x", "y" and "z" present the mole fractions of germanium, aluminum, phosphorus and silicon, respectively, present as tetrahedral oxides. Their use as absorbents, catalysts, etc. is also disclosed.Type: GrantFiled: April 15, 1986Date of Patent: February 12, 1991Assignee: UOPInventors: Edith M. Flanigen, Brent M. T. Lok, Robert L. Patton, Stephen T. Wilson
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Patent number: 4985151Abstract: Crystalline molecular sieves having three-dimensional microporous framework structures of ELO.sub.2, SiO.sub.2 and PO.sub.2 framework oxide units are disclosed. The molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula:mR: (EL.sub.w Al.sub.x P.sub.y Si.sub.z)O.sub.2wherein "R" represents at least one organic templating agent present in the intracrystalline pore system; "m" represents the molar amount of "R" present per mole of (EL.sub.w Al.sub.x P.sub.y Si.sub.z)O.sub.2 ; "EL" represents at least one element capable of forming a framework oxide unit; and "w", "x", "y" and "z" represent the mole fractions of elements(s) "EL", aluminum, phosphorus and silicon, respectively, present as framework oxides. Their use as adsorbents, catalysts, etc. is also disclosed.Type: GrantFiled: September 19, 1989Date of Patent: January 15, 1991Assignee: UOPInventors: Brent M. T. Lok, Bonita K. Marcus, Lawrence D. Vail, Edith M. Flanigen, Robert L. Patton, Stephen T. Wilson
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Patent number: 4973460Abstract: Molecular sieve compositions having three-dimensional microporous framework structures of LiO.sub.2, AlO.sub.2, PO.sub.2 and SiO.sub.2 tetrahedral oxide units are disclosed. These molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula:mR: (Li.sub.w Al.sub.x P.sub.y Si.sub.z)O.sub.2wherein "R" represents at least one organic templating agent present in the intracrystalline pore system; "m" represents the molar amount of "R" present per mole of (Li.sub.w Al.sub.x P.sub.y Si.sub.z)O.sub.2 ; and "w", "x", "y" and "z" represent the mole fractions of lithium, aluminum, phosphorus and silicon, respectively, present as tetrahedral oxides. Their use as adsorbents, catalysts, etc. is also disclosed.Type: GrantFiled: July 6, 1988Date of Patent: November 27, 1990Assignee: UOPInventors: Edith M. Flanigen, Brent M. T. Lok, Robert L. Patton, Stephen T. Wilson, David A. Lesch
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Patent number: 4973785Abstract: Crystalline molecular sieves having three-dimensional microporous framework structures of ELO.sub.2, AlO.sub.2, SiO.sub.2 and PO.sub.2 framework oxide units are disclosed. The molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula:mR: (EL.sub.w Al.sub.x P.sub.y Si.sub.z)O.sub.2wherein "R" represents at least one organic templating agent present in the intracrystalline pore system; "m" represents the molar amount of "R" present per mole of (EL.sub.w Al.sub.x P.sub.y Si.sub.z)O.sub.2 ; "EL" represents at least one element capable of forming a framework oxide unit; and "w", "x", "y" and "z" represent the mole fractions of element(s) "EL", aluminum, phosphorus and silicon, respectively, present as framework oxides. Their use as adsorbents, catalysts, etc. is also disclosed.Type: GrantFiled: April 18, 1988Date of Patent: November 27, 1990Assignee: UOPInventors: Brent M. T. Lok, Bonita K. Marcus, Lawrence D. Vail, Edith M. Flanigen, Robert L. Patton, Stephen T. Wilson
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Patent number: 4952383Abstract: Molecular sieves having three-dimensional microporous framework structures of BO.sub.2, AlO.sub.2 and PO.sub.2 tetrahedral units are disclosed. These molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula:mR: (B.sub.x Al.sub.y P.sub.z)O.sub.2wherein "R" represents at least one organic templating agent present in the intracrystalline pore system; "m" represents the molar amount of "R" present per mole of (B.sub.x Al.sub.y P.sub.z)O.sub.2 ; and "x", "y" and "z" represent the mole fractions of boron, aluminum and phosphorus, respectively, present as tetrahedral oxides. The use of these molecular sieves as adsorbents, catalysts etc. is also disclosed.Type: GrantFiled: March 24, 1987Date of Patent: August 28, 1990Assignee: UOPInventors: Edith M. Flanigen, Brent M. T. Lok, Robert L. Patton, Stephen T. Wilson, Richard T. Gajek
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Patent number: 4940570Abstract: Molecular sieve compositions having three-dimensional microporous framework structures of BeO.sub.2, AlO.sub.2 and PO.sub.2 tetrahedral oxide units are disclosed. These molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula:mR:(Be.sub.x Al.sub.y P.sub.z)O.sub.2wherein "R" represents at least one organic templating agent present in the intracrystalline pore system; "m" represents the molar amount of "R" present per mole of (Be.sub.x Al.sub.y P.sub.z)O.sub.2 ; and "x", "y" and "z" represent the mole fractions of beryllium, aluminum and phosphorus, respectively, present as tetrahedral oxides. Their use as adsorbents, catalysts, etc. is also disclosed.Type: GrantFiled: March 3, 1986Date of Patent: July 10, 1990Assignee: UOPInventors: Edith M. Flanigen, Brent M. Lok, Robert L. Patton, Stephen T. Wilson
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Patent number: 4938937Abstract: A novel crystalline aluminophosphate of the molecular sieve type, denominated AlPO.sub.4 -34, is prepared by hydrothermal synthesis from reactive sources of aluminum and phosphorus and an organic templating agent.Type: GrantFiled: June 4, 1987Date of Patent: July 3, 1990Assignee: UOPInventors: David A. Lesch, Naomi Woodard, Robert L. Patton
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Patent number: 4913888Abstract: Molecular sieve compositions having three-dimensional microporous framework structures of AsO.sub.2, AlO.sub.2 and PO.sub.2 tetrahedral oxide units are disclosed. These molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula:mR: (As.sub.x Al.sub.y P.sub.z)O.sub.2wherein "R" represents at least one organic templating agent present in the intracrystalline pore system; "m" represents the molar amount of "R" present per mole of (As.sub.x Al.sub.y P.sub.z)O.sub.2 ; and "x", "y" and "z" represent the mole fractions of arsenic, aluminum and phosphorus, respectively, present as tetrahedral oxides. Their use as adsorbents, catalysts, etc. is also disclosed.Type: GrantFiled: February 19, 1986Date of Patent: April 3, 1990Assignee: UOPInventors: Edith M. Flanigen, Brent M. T. Lok, Robert L. Patton, Stephen T. Wilson
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Patent number: 4894213Abstract: Molecular sieve compositions having three-dimensional microporous framework structures of AsO.sub.2, AlO.sub.2, PO.sub.2 and SiO.sub.2 tetrahedral oxide units are disclosed. These molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula:mR: (As.sub.w Al.sub.x P.sub.y Si.sub.z)O.sub.2wherein "R" represents at least one organic templating agent present in the intracrystalline pore system; "m" represents the molar amount of "R" present per mole of (As.sub.w Al.sub.x P.sub.y Si.sub.z)O.sub.2 ; and "w", "x", "y" and "z" represent the mole fractions of arsenic, aluminum, phosphorus and silicon, respectively, present as tetrahedral oxides. Their use as adsorbents, catalysts, etc. is also disclosed.Type: GrantFiled: March 31, 1986Date of Patent: January 16, 1990Assignee: UOPInventors: Edith M. Flanigen, Brent M. T. Lok, Robert L. Patton, Stephen T. Wilson
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Patent number: 4888167Abstract: Molecular sieve compositions having three-dimensional microporous framework structures of GeO.sub.2, AlO.sub.2 and PO.sub.2 tetrahedral oxide units are disclosed. These molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula:mR: (Ge.sub.x Al.sub.y P.sub.z)O.sub.2wherein "R" represents at least one organic templating agent present in the intracrystalline pore system; "m" represents the molar amount of "R" present per mole of (Ge.sub.x Al.sub.y P.sub.z)O.sub.2 ; and "x", "y" and "z" represent the mole fractions of germanium, aluminum and phosphorus, respectively, present as tetrahedral oxides. Their use as adsorbents, catalysts, etc. is also disclosed.Type: GrantFiled: March 20, 1986Date of Patent: December 19, 1989Assignee: UOPInventors: Edith M. Flanigen, Brent M. T. Lok, Robert L. Patton, Stephen T. Wilson
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Patent number: 4851106Abstract: Molecular sieve compositions having three-dimensional microporous framework structures of CrO.sub.2, AlO.sub.2 and PO.sub.2 tetrahedral oxide units are disclosed. These molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula:mR: (Cr.sub.x Al.sub.Y P.sub.z)O.sub.2wherein "R" represents at least one organic templating agent present in the intracrystalline pore system; "m" represents the molar amount of "R" present per mole of (Cr.sub.x Al.sub.y P.sub.z)O.sub.2 ; and "x", "y" and "z" represents the mole fractions of chromium, aluminum and phosphorus, respectively, present as tetrahedral oxides. Their use as adsorbents, catalysts, etc. is also disclosed.Type: GrantFiled: March 31, 1988Date of Patent: July 25, 1989Assignee: UOPInventors: Edith M. Flanigen, Brent M. T. Lok, Robert L. Patton, Stephen T. Wilson