Patents Represented by Attorney Vincent J. Vasta
-
Patent number: 4758418Abstract: An improved process for converting hydrocarbons using a catalyst which is periodically regenerated to remove carbonaceous deposits, the catalyst being comprised of a mixture containing, as a major component, solid particles capable of promoting hydrocarbon conversion at hydrocarbon conversion conditions, and, as a minor component, discrete entities comprising at least one spinel, preferably alkaline earth metal-containing spinel; thereby reducing the amount of sulfur oxides exiting the catalyst regeneration zone.Improved hydrocarbon conversion catalysts are also disclosed.Type: GrantFiled: December 11, 1986Date of Patent: July 19, 1988Assignee: Union Carbide CorporationInventors: Jin S. Yoo, John A. Jaecker
-
Patent number: 4744970Abstract: Crystalline molecular sieves having three-dimensional microporous framework structures of CoO.sub.2, AlO.sub.2, SiO.sub.2, PO.sub.2 and tetrahedral units are disclosed. These molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula:mR: (Co.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 (Co.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 cobalt, aluminum, phosphorus and silicon, respectively, present as tetrahedral oxides. Their use as adsorbents catalysts, etc. is also disclosed.Type: GrantFiled: April 13, 1984Date of Patent: May 17, 1988Assignee: Union Carbide CorporationInventors: Brent M. Lok, Bonita K. Marcus, Edith M. Flanigen
-
Patent number: 4744886Abstract: Catalytic cracking catalysts, the process of their preparation and the process of their use. Cracking catalysts are disclosed for improving the octane number of gasoline products. The catalysts comprise a zeolitic aluminosilicate having a mole ratio of oxides in the dehydrated state of(0.85-1.1) M.sub.2/n O:Al.sub.2 O.sub.3 :xSiO.sub.2wherein M is a cation having a valence of "n" and "x" has a value greater than 6.0 to about 11.0; has an x-ray powder diffraction pattern having at least the d-spacings of Table A; has extraneous silicon atoms in the crystal lattice in the form of framework SiO.sub.4 tetrahedra; has between greater than zero to less than 5.0 percent by weight, expressed as the oxide, of at least one rare earth cation selected from the group consisting of cerium, lanthanum, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium and lutetium; and less than 1.2 weight percent Na.sub.Type: GrantFiled: February 5, 1986Date of Patent: May 17, 1988Assignee: Union Carbide CorporationInventors: Robert L. Chiang, Mark T. Staniulis
-
Patent number: 4741820Abstract: Reforming and dehydrocyclization catalysts and processes are disclosed wherein reforming catalysts comprise a Group VIII metal and at least one medium pore non-zeolitic molecular sieve characterized in the calcined form by an adsorption of isobutane of at least 2 percent by weight at a partial pressure of 500 torr and a termperature of 20.degree. C. and characterized by an adsorption of triethylamine less than about 5 percent by weight at a partial pressure of 2.6 torr and a temperature of 22.degree. C. In one embodiment the catalyst includes a Group VII metal on a halogenated carrier.Type: GrantFiled: March 27, 1986Date of Patent: May 3, 1988Assignee: Union Carbide CorporationInventors: Peter K. Coughlin, Regis J. Pellet
-
Patent number: 4741892Abstract: Crystalline molecular sieves having three-dimensional microporous framework structures of M'O.sub.2, M"O.sub.2, AlO.sub.2, PO.sub.2, and SiO.sub.2 tetrahedral units are disclosed. These molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula:mR:(M'.sub.u M".sub.v 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 (M'.sub.u M".sub.v Al.sub.x P.sub.y Si.sub.z)O.sub.2 ; M' and M" represent two elements capable of forming framework tetrahedral units; and "u", "v", "x", "y" and "z" represent the mole fractions of M', M", aluminum, phosphorus and silicon, respectively, present as tetrahedral oxides. Their use as adsorbents, catalysts, etc. is disclosed.Type: GrantFiled: April 13, 1984Date of Patent: May 3, 1988Assignee: Union Carbide CorporationInventors: Brent M. T. Lok, Bonita K. Marcus, Edith M. Flanigen
-
Patent number: 4735705Abstract: An improved process for converting hydrocarbons using a catalyst which is periodically regenerated to remove carbonaceous deposits, the catalyst being comprised of a mixture containing, as a major component, solid particles capable of promoting hydrocarbon conversion at hydrocarbon conversion conditions, and, as a minor component, discrete entities comprising at least one spinel, preferably alkaline earth metal-containing spinel, and a minor amount of at least one added component selected from the group consisting of alkali metal components, calcium components, barium components, strontium components, beryllium components and mixtures thereof.Type: GrantFiled: May 11, 1987Date of Patent: April 5, 1988Assignee: Katalistiks International Inc.Inventors: Emmett H. Burk, Jr., Jin S. Yoo, Cecelia A. Radlowski
-
Patent number: 4735928Abstract: Process for hydrocracking a crude oil feed, hydrocracking catalyst employed therein and the process for its preparation. The instant invention employs new aluminosilicate zeolite catalysts derived from a new zeolites denominated "LZ-210" which provide hydrocracking catalysts which demonstrate improved activity in first and/or second stage operation.Type: GrantFiled: August 12, 1985Date of Patent: April 5, 1988Assignee: Union Carbide CorporationInventors: Donald F. Best, Gary N. Long, Regis J. Pellet, Jule A. Rabo, Edward T. Wolynic
-
Patent number: 4734185Abstract: Cracking catalysts and their use in cracking processes are disclosed. The cracking catalyst are prepared using mixtures of catalytic cracking catalysts containing zeolitic aluminosilicates effective in catalytic cracking and selected silicoaluminophosphate molecular sieves of U.S. Pat. No. 4,440,871.Type: GrantFiled: September 5, 1985Date of Patent: March 29, 1988Assignee: Union Carbide CorporationInventors: Regis J. Pellet, Peter K. Coughlin, Mark T. Staniulis, Gary N. Long, Jule A. Rabo
-
Patent number: 4728635Abstract: A process for the production of an alkaline earth metal, aluminum-containing spinel composition comprises: (a) combining (1) an acidic, aluminum-containing composition in which the aluminum is present in a positively charged species, and (2) a basic, alkaline earth metal-containing composition to form a mixture; and (b) calcining the mixture to form the alkaline earth metal, aluminum-containing spinel composition. Alkaline earth metal, aluminum-containing spinels having both high surface areas and high attrition resistance, and processes for using spinel compositions, e.g., as sulfur oxide and nitrogen oxide removal agent, are also disclosed.Type: GrantFiled: April 7, 1986Date of Patent: March 1, 1988Assignee: Katalistiks International Inc.Inventors: Alakanada Bhattacharyya, William E. Cormier, Jr., Gerald M. Woltermann
-
Patent number: 4707345Abstract: Titanium-aluminum-silicon-oxide molecular sieves are disclosed having use as molecular sieves and as catalyst compositions in hydrocarbon conversion and other processes. The molecular sieves have a unit empirical formula on an anhydrous basis ofmR: (Ti.sub.x Al.sub.y Si.sub.z)O.sub.2wherein "R" represents at least one organic+emplating agent; "m" represents the moles of "R" present per mole of (Ti.sub.x Al.sub.y Si.sub.z)O.sub.2 ; and "x", "y" and "z" represent the mole fractions of titanium, aluminum and silicon, respectively, present as tetrahedral oxides.Type: GrantFiled: April 26, 1984Date of Patent: November 17, 1987Assignee: Union Carbide CorporationInventors: Brent M. T. Lok, Bonita K. Marcus, Edith M. Flanigen
-
Patent number: 4690808Abstract: A novel family of crystalline, microporous gallophosphate compositions is synthesized by hydrothermal crystallization at elevated temperatures from gallophosphate gels containing a molecular structure-forming template. The family comprises distinct species, each with a unique crystal structure. Calcination removes volatile extraneous matter from the intracrystalline void space and yields microporous crystalline adsorbents with pores, the dimensions of which vary, among the individual species, from about 3A to 10A in diameter. The compositions represent a new class of adsorbents of the molecular sieve type, and also exhibit properties somewhat analogous to zeolitic molecular sieves which render them useful as catalysts or catalyst bases in chemical reactions such as hydrocarbon conversions.Type: GrantFiled: December 20, 1985Date of Patent: September 1, 1987Assignee: Union Carbide CorporationInventors: Stephen T. Wilson, Naomi A. Woodard, Edith M. Flanigen
-
Patent number: 4687754Abstract: Catalytic cracking catalysts, the process of their preparation and the process of their use. The cracking catalyst comprises a zeolite having a mole ratio of oxides in the dehydrated state of (0.85-1.1) M.sub.2/n O:Al.sub.2 O.sub.3 :xSiO.sub.2 wherein "M" is a cation having a valence of "n", "x" has a value greater than 6.0, has a x-ray powder diffraction pattern having at least the d-spacings of Table A, has extraneous silicon atoms in the crystal lattice in the form of framework SiO.sub.4 tetrahedra and has been thermally treated and/or cation exchanged with a multivalent cation. The catalyst of the instant invention are unique in the fact that the zeolitic aluminosilicate has less than 1.2 weight percent Na.sub.2 O and such is achieved without the requirement of a pre-calcination step.Type: GrantFiled: October 3, 1984Date of Patent: August 18, 1987Assignee: Union Carbide CorporationInventors: Regis J. Pellet, Donald F. Best, Gary N. Long, Jule A. Rabo, Edward T. Wolynic
-
Patent number: 4686092Abstract: Crystalline molecular sieves having three-dimensional microporous framework structures of MnO.sub.2, AlO.sub.2, SiO.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:(Mn.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 (Mn.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 manganese, aluminum, phosphorus and silicon, respectively, present as tetrahedral oxides. Their use as adsorbents, catalysts, etc. is also disclosed.Type: GrantFiled: April 13, 1984Date of Patent: August 11, 1987Assignee: Union Carbide CorporationInventors: Brent M. T. Lok, Bonita K. Marcus, Edith M. Flanigen
-
Patent number: 4686029Abstract: Dewaxing processes for hydrocarbon feedstocks are disclosed using novel catalysts comprising titanoaluminosilicates. The products of the instant dewaxing processes are characterized by lower pour points than the hydrocarbon feedstock.Type: GrantFiled: December 6, 1985Date of Patent: August 11, 1987Assignee: Union Carbide CorporationInventors: Regis J. Pellet, Frank P. Gortsema, Gary N. Long, Jule A. Rabo
-
Patent number: 4686093Abstract: Crystalline molecular sieves having three-dimensional microporous framework structure of MO.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 are expressed by the formula:mR:(M.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 (M.sub.x Al.sub.y P.sub.z)O.sub.2 ; "M" represents at least two elements capable of forming framework tetrahedral oxides and selected from the group consisting of arsenic, beryllium, boron, chromium, gallium, germanium, lithium and vanadium; and "x", "y" and 37 z" represent the mole fractions of "M", aluminum and phosphorus, respectively, present as tetrahedral oxides. Their use as adsorbents, catalysts, etc. is disclosed.Type: GrantFiled: April 13, 1984Date of Patent: August 11, 1987Assignee: Union Carbide CorporationInventors: Edith M. Flanigen, Brent M. T. Lok, Robert L. Patton, Stephen T. Wilson
-
Patent number: 4684511Abstract: A process for treating crystalline aluminophosphates to provide aluminophosphates having modified catalytic properties. The crystalline aluminophosphates are contacted with a halogen-derived compound at an effective temperature and for an effective time to alter the surface characteristics of the aluminophosphates with resulting modification of catalytic properties.Type: GrantFiled: August 29, 1984Date of Patent: August 4, 1987Assignee: Union Carbide CorporationInventors: Frank P. Gortsema, Brent M. T. Lok
-
Patent number: 4684617Abstract: Crystalline molecular sieves having three-dimensional microporous framework structures of TiO.sub.2, AlO.sub.2, SiO.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:(Ti.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 (Ti.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 titanium, aluminum, phosphorus and silicon, respectively, present as tetrahedral oxides. Their use as adsorbents, catalysts, etc. is also disclosed.Type: GrantFiled: April 13, 1984Date of Patent: August 4, 1987Assignee: Union Carbide CorporationInventors: Brent M. T. Lok, Bonita K. Marcus, Edith M. Flanigen
-
Patent number: 4683217Abstract: A novel class of iron-aluminum-phosphorus-silicon-oxide molecular sieves is disclosed which contain as framework constituents FeO.sub.2.sup.-, and/or FeO.sub.2.sup.-2, AlO.sub.2.sup.-, PO.sub.2.sup.+ and SiO.sub.2 tetrahedral oxide units. These compositions are prepared hydrothermally, preferably using organic templating agents and are suitably employed as adsorbents and catalysts.Type: GrantFiled: April 13, 1984Date of Patent: July 28, 1987Assignee: Union Carbide CorporationInventors: Brent M. Lok, Lawrence D. Vail, Edith M. Flanigen
-
Patent number: 4678765Abstract: Catalytic cracking catalysts, the process of their preparation and the process of their use. Cracking catalysts are disclosed for improving the octane number of gasoline products. The catalysts comprise a zeolitic aluminosilicate having a mole ratio of oxides in the dehydrated state of(0.85-1.1) M.sub.2/n O: Al.sub.2 O.sub.3 : xSiO.sub.2wherein M is a cation having a valence of "n" and "x" has a value greater than 6.0 to about 11.0; has an x-ray powder diffraction pattern having at least the d-spacings of Table A; has extraneous silicon atoms in the crystal lattice in the form of framework SiO.sub.4 tetrahedra; has between greater than zero to less than 5.0 percent by weight, expressed as the oxide, of at least one rare earth cation selected from the group consisting of cerium, lanthanum, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium and lutetium; and less than 1.2 weight percent Na.sub.Type: GrantFiled: October 3, 1984Date of Patent: July 7, 1987Assignee: Union Carbide CorporationInventors: Robert L. Chiang, Mark T. Staniulis
-
Patent number: 4677242Abstract: The process for the production of light olefins from a feedstock comprising at least an aliphatic hetero compound comprising contacting said feedstock in the presence of an aromatic diluent with a silicoaluminophosphate molecular sieve at effective process conditions to produce light olefins.Type: GrantFiled: February 11, 1985Date of Patent: June 30, 1987Assignee: Union Carbide CorporationInventor: Steven W. Kaiser