And Silicon Containing Patents (Class 502/214)
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Patent number: 5405819Abstract: A Phillips catalyst for the polymerization of .alpha.-olefins, containing, as a catalytically active component, at least one chromium(III) compound on a silicon aluminum phosphate carrier of the general formula (I)(Si.sub.x Al.sub.y P.sub.z)O.sub.2 (I)where x is from 0.05 to 0.5 and y and z are each from 0.1 to 1.0, exhibits in particular high productivity and is preferably used for the preparation of homo- and copolymers of ethylene.Type: GrantFiled: August 23, 1993Date of Patent: April 11, 1995Assignee: BASF AktiengesellschaftInventors: Hans-Joachim Mueller, Hans-Georg Braun, Bernd L. Marczinke, Ulrich Mueller
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Patent number: 5406012Abstract: A composition comprising a crystalline aluminumphosphate material having a three-dimensional microporous crystal framework structure whose chemical composition expressed in terms of mole ratios of oxides isAl.sub.2 O.sub.3 : 1.0.+-.0.2 P.sub.2 O.sub.5 ;and which is further defined as having an x-ray powder diffraction pattern characterized by d spacings at less than about 40 degrees two-theta as measured using copper K-alpha radiation that are substantially as shown in the Table and a metal in an amount of up to about 25 percent by weight is disclosed. The composition can be prepared by impregnating the crystalline aluminumphosphate material with the metal in an amount of up to about 25 percent by weight. The resultant heterocatalyst system can be used to shape-selectively hydrogenate an unsaturated organic compound, such as, for example an olefin, aldehyde or ketone.Type: GrantFiled: May 23, 1989Date of Patent: April 11, 1995Assignee: The Dow Chemical CompanyInventor: Mark E. Davis
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Patent number: 5374411Abstract: Crystalline aluminumphosphate compositions having three-dimensional microporous crystal framework structures whose chemical composition expressed in terms of mole ratios is Al.sub.2 O.sub.3 :1.0.+-.P.sub.2 O.sub.5 are disclosed. These compositions have an X-ray diffraction pattern characterized by d spacings at less than about 40 degrees two-theta as measured using copper K-alpha radiation that are substantially as shown in Table 1. The compositions can further comprise a structure-directing agent. Preparation is by admixing an aluminum source, a phosphorus source and 10-100 moles of water per mole of Al.sub.2 O.sub.3 to form a precursor mixture, admixing the precursor mixture with the structure-directing agent to form a reaction mixture, and reacting the reaction mixture under conditions such that an aluminumphosphate composition of the given X-ray diffraction pattern is formed.Type: GrantFiled: June 15, 1988Date of Patent: December 20, 1994Assignee: The Dow Chemical CompanyInventors: Mark E. Davis, Juan M. Garces, Carlos H. Saldarriaga, Maria Del C. Montes de Correa
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Patent number: 5370851Abstract: This invention relates to novel silicoaluminophosphate molecular sieves. These sieves are represented by the empirical formula:mR:(Si.sub.x Al.sub.y P.sub.z)O.sub.2where R represents at least one organic templating agent present in the intracrystalline pore system; m is the molar amount of R per mole of (Si.sub.x Al.sub.y P.sub.z)O.sub.2 and has a value from zero to about 0.3; x is the mole fraction of silicon and varies from about 0.01 to about 0.98, y is the mole fraction of aluminum and varies from about 0.01 to about 0.60, z is the mole fraction of phosphorus and varies from about 0.01 to about 0.52 and x+y+z=1. These sieves have the structure of SAPO-36 or SAPO-56 and are useful as hydrocarbon conversion processes.Type: GrantFiled: May 27, 1993Date of Patent: December 6, 1994Assignee: UOPInventor: Stephen T. Wilson
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Patent number: 5370853Abstract: This invention relates to inorganic microporous solids having a framework structure of AX.sub.4 -tetrahedrons linked by their corners, wherein A denotes at least one electropositive element selected from the group consisting of Be, B, Al, Ga, C, Si, Ge, P, As and S, and at least 10 of the X atoms are nitrogen. The invention also relates to a process for the preparation of these solids.Type: GrantFiled: January 11, 1993Date of Patent: December 6, 1994Assignee: Bayer AGInventors: Wolfgang Schnick, Jan Lucke
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Patent number: 5366945Abstract: There is provided a catalyst comprising a heteropoly acid, such as phosphotungstic acid, supported on a mesoporous crystalline material, such as M41S. A particular form of this M41S support is designated as MCM-41. There is also provided a method for preparing this catalyst by impregnating the heteropoly acid on the support. There is also provided a process for using this catalyst to catalyze acid catalyzed reactions, such as the isomerization of paraffins and the alkylation of aromatics.Type: GrantFiled: December 22, 1992Date of Patent: November 22, 1994Assignee: Mobil Oil Corp.Inventors: Charles T. Kresge, David O. Marler, Gayatri S. Rav, Brenda H. Rose
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Patent number: 5360474Abstract: Colored crystalline alumophosphates and/or silicoalumophsophates of the AEL or VFI type useful as dyes, optical elements and as adsorbents have the following X-ray diffraction diagram:______________________________________ Interplanar spacing Relative intensity d(A) I/I.sub.o .times. 100 ______________________________________ 10.91 .+-. 0.1 26 .+-. 10 9.19 .+-. 0.1 41 .+-. 10 6.79 .+-. 0.05 16 .+-. 10 5.57 .+-. 0.05 52 .+-. 10 4.39 .+-. 0.05 39 .+-. 10 4.18 .+-. 0.05 71 .+-. 10 4.09 .+-. 0.05 33 .+-. 10 3.98 .+-. 0.05 57 .+-. 10 3.86 .+-. 0.05 68 .+-. 10 3.81 .+-. 0.05 100 ______________________________________and a composition described by the following formula:a quinizarin.b Al.sub.2 O.sub.3.c P.sub.2 O.sub.5.d SiO.sub.2where a is from 0.05 to 2, b and c are each from 8 to 12, and d is from 0 to 4.Type: GrantFiled: September 16, 1992Date of Patent: November 1, 1994Assignee: BASF AktiengesellschaftInventors: Guenter Lauth, Ulrich Mueller, Wolfgang Hoelderich, Stefan Brode, Gerhard Wagenblast
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Patent number: 5330953Abstract: a process for the preparation of anatase titanium dioxide having a high surface area and suitable as a catalyst support is described.The process involves forming an aqueous dispersion of titanium dioxide at a pH less than 3 and preferably less than 1 and depositing a first coating of a hydrous oxide of an element which acts as a rutilisation inhibitor and a second coating of a phosphate on the particles of titanium dioxide.The product of the process has a high surface area which is retained on heating for long periods at high temperature.A novel product is particulate anatase titanium dioxide which has been coated with a rutile inhibitor and a phosphate, has a specific surface area of at least 50 m.sup.2 /g and retains at least 80% of its surface area after heating at 800.degree. C. for 7 days.Type: GrantFiled: April 26, 1993Date of Patent: July 19, 1994Assignee: Tioxide Specialties LimitedInventor: Dominic G. Meina
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Patent number: 5324493Abstract: Aluminophosphates and silicoaluminophosphates having the AEL structure are prepared under hydrothermal crystallization conditions by a process in which 1,2-bis-( 4-pyridyl)-ethane is used for the crystallization.Type: GrantFiled: August 31, 1992Date of Patent: June 28, 1994Assignee: BASF AktiengesellschaftInventors: Ulrich Mueller, Wolfgang Hoelderich, Guenter Lauth
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Patent number: 5308813Abstract: A method for demetallating crystalline molecular sieve materials by removing a transition metal in the sieve framework with a complexing agent.Type: GrantFiled: February 1, 1993Date of Patent: May 3, 1994Assignee: Exxon Research & Engineering CompanyInventors: David E. W. Vaughan, Karl G. Strohmaier
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Patent number: 5300472Abstract: A catalyst for the selective reduction of nitrous oxide with ammonia contains, in addition to titanium oxide as component (A), at least one oxide of W, Si, B, Al, P, Zr, Ba, Y, La, Ce and at least one oxide of Y, Nb, Mo, Fe, Cu as component (B), whereby the atomic ratio between the elements of components (A) and (B) amounts to 1:0.001 up to 1. The catalyst can be obtained by kneading reactive titanium oxide with a high specific surface of predominantly anatase with the substances of component (B) or their preliminary stages, adding processing agents, winding up with a homogeneous kneaded mass, extruding the latter, drying the extrudate and calcining in air at 300.degree.-800.degree. C.Type: GrantFiled: December 31, 1992Date of Patent: April 5, 1994Assignee: Degussa AktiengesellschaftInventors: Reinhold Brand, Bernd Engler, Wolfgang Honnen, Edgar Koberstein, Johannes Ohmer
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Patent number: 5294429Abstract: The present invention relates to crystalline aluminophosphates having in the as-synthesized anhydrous form an X-ray diffraction pattern containing at least the lines given in Table A.TABLE A ______________________________________ d (.ANG.) Intensity (I/I.sub.0) ______________________________________ 17.5 .+-. 0.2 vs 8.45 .+-. 0.2 s/vs 5.35 .+-. 0.1 w/m 4.62 .+-. 0.1 w/m 3.70 .+-. 0.05 m 3.52 .+-. 0.03 m 3.41 .+-. 0.03 m/s ______________________________________The invention further relates to a process for preparing the crystalline aluminophosphates, using a substituted diamine as an organic template, under specified reaction conditions.Type: GrantFiled: October 5, 1992Date of Patent: March 15, 1994Assignee: Shell Oil CompanyInventors: Bettina Kraushaar-Czarnetzki, Hermanus Jongkind, Ronald J. Dogterom
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Patent number: 5292701Abstract: Aluminum phosphate compositions are provided which are characterized simultaneously by high porosity and phosphorous-to-aluminum ratios of approximately 1.0. The high porosity of these compositions is a function of high pore volume coupled with low surface area, resulting in high average pore diameter. These materials have excellent properties as catalysts and catalyst supports. Methods of making the compositions are also provided.Type: GrantFiled: May 10, 1991Date of Patent: March 8, 1994Assignee: W. R. Grace & Co.-Conn.Inventors: Rimantas Glemza, Yves O. Parent
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Patent number: 5248647Abstract: Hydrothermal treatment of silicoaluminophosphate molecular sieves at temperatures in excess of about 700.degree. C. for periods sufficient to destroy a large proportion of their acid sites while retaining at least 80 percent of their crystallinity is found to result in a catalyst for converting methanol to lower olefins having increased catalyst life, increased selectivity for C.sub.2 -C.sub.3 olefins and decreased selectivity for paraffin production than the untreated SAPO-n starting composition.Type: GrantFiled: December 23, 1991Date of Patent: September 28, 1993Assignee: UOPInventor: Paul T. Barger
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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: 5241093Abstract: A process for preparing aluminophosphate compounds (and substituted derivatives) of the structural type VFI. This preparation process is characterized in that the speed of increase in temperature of the reaction mixture is greater than 250.degree. C./hour, the total time of heating of the reaction mixture, including the rise in temperature and the plateau heating, being less than one hour. The temperature of the plateau heating is between 100.degree. and 200.degree. C.The synthetic compounds in accordance with the invention possess(a) a general formula approximating to the following:1 Al.sub.2 O.sub.3 0.75-1.25 P.sub.2 O.sub.5 0-0.5 XO.sub.n/2 0-0.05 R y H.sub.2 OwhereX represents a heteroatom chosen from the group consisting of silicon, cobalt, magnesium and zinc;n is the degree of oxidation of the heteroatom X;y, the number of water molecules contained in the said compound, is greater than 0.Type: GrantFiled: January 21, 1992Date of Patent: August 31, 1993Assignee: Institut Francais du PetroleInventors: Jean-Francois Joly, Herve Cauffriez, Jean-Louis Guth
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Patent number: 5240889Abstract: A composition useful for catalyzing alkylation and transalkylation reactions comprises a molecular sieve having alkylation and/or transalkylation activity, an inorganic refractory oxide component and greater than 3.5 weight percent water. Such a catalyst has been found to maintain a long life when used to produce ethylbenzene in an integrated process in which benzene is alkylated with ethylene and transalkylated with diethylbenzene. The catalyst can also be used to produce cumene via an integrated process in which benzene is alkylated with propylene and transalkylated with diisopropylbenzene.Type: GrantFiled: July 12, 1991Date of Patent: August 31, 1993Assignee: Union Oil Company of CaliforniaInventors: Martin West, Suheil F. Abdo
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Patent number: 5232683Abstract: Crystalline aluminophosphates and related compounds having in the as-synthesized dried form the chemical composition expressed asaR(bP.sub.2 O.sub.5)(cAl.sub.2 O.sub.3)(dSiO.sub.2)(eMeO)(zH.sub.2 O)wherein R represents a diamine of the general formulaR.sub.2 R.sub.3 N--R.sub.1 --NR.sub.4 R.sub.5wherein R.sub.1 represents a C.sub.8 -C.sub.14 carbon chain which may contain one or more inert substituents and each of R.sub.2, R.sub.3, R.sub.4 and R.sub.5 represents a hydrogen atom or an alkyl group which may contain one or more inert substituents and Me represents a divalent metal moiety, wherein:a:b=0.5-1(c+e):b=0.5-0.9d:b=0-0.25(c+e):a=0.8-1.2 andz:b at least 0.1.Type: GrantFiled: October 25, 1991Date of Patent: August 3, 1993Assignee: Shell Oil CompanyInventors: David M. Clark, Bettina Kraushaar-Czarnetzki, Ronald J. Dogterom
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Patent number: 5227151Abstract: A method of preparing silicoaluminophosphate (SAPO) compositions from a forming mixture which comprises sources of oxides of silicon, aluminum and phosphorus and quaternary ammonium-functionalized organosiliconate directing agent wherein the oxides of silicon are provided at least in part by said directing agent, e.g., N-trimethoxysilylpropyl-N,N,N-trimethylammonium chloride.Type: GrantFiled: November 15, 1991Date of Patent: July 13, 1993Assignee: Mobil Oil CorporationInventor: David C. Calabro
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Patent number: 5198403Abstract: A catalyst for the selective reduction of nitrous oxide with ammonia contains, in addition to titanium oxide as component (A), at least one oxide of W, Si, B, Al, P, Zr, Ba, Y, La, Ce and at least one oxide of V, Nb, Mo, Fe, Cu as component (B), whereby the atomic ratio between the elements of components (A) and (B) amounts to 1:0.001 up to 1. The catalyst can be obtained by kneading reactive titanium oxide with a high specific surface of predominantly anatase with the substances of component (B) or their preliminary stages, adding processing agents, winding up with a homogeneous kneaded mass, extruding the latter, drying the extrudate and calcining in air at 300.degree.-800.degree. C.Type: GrantFiled: November 5, 1991Date of Patent: March 30, 1993Assignee: Degussa AGInventors: Reinhold Brand, Bernd Engler, Wolfgang Honnen, Edgar Koberstein, Johannes Ohmer
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Patent number: 5191141Abstract: This invention relates to an improved process for converting methanol to light olefins using an ELAPO catalyst. The catalyst comprises a metal aluminophosphate molecular sieve having the empirical formula (EL.sub.x Al.sub.y P.sub.z)O.sub.2 where EL is a metal and x,y and z are mole fractions of EL, Al and P respectively. Preferred metals are silicon, magnesium and cobalt, with silicon especially preferred. The molecular sieve catalyst is composed of particles at least 50% of which have a particle size less than 1.0 .mu.m and no more than 10% of the particles have a particle size greater than 2.0 .mu.m. It is also preferred that the metal content (x) be from about 0.005 and 0.05 mole fraction.Type: GrantFiled: April 1, 1992Date of Patent: March 2, 1993Assignee: UOPInventors: Paul T. Barger, Stephen T. Wilson, Jennifer S. Holmgren
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Patent number: 5191146Abstract: An improved process is disclosed for the isomerization of butenes, pentenes, and heavier olefins using a catalyst comprising a non-zeolitic molecular sieve. It is of particular interest to increase the proportion of olefins containing tertiary carbons in the product with low formation of undesirable by-products. Product olefins may be further processed to obtain ethers, which enjoy high current interest as components for reformulated gasoline.Type: GrantFiled: December 30, 1991Date of Patent: March 2, 1993Assignee: UOPInventors: Gregory J. Gajda, Paul T. Barger
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Patent number: 5185310Abstract: A method of activating silicoaluminophosphate (SAPO) compositions by contacting as-synthesized SAPO with hydrated alumina and water, followed by heating to at least 425.degree. C., preferably in nitrogen and then air.Type: GrantFiled: January 31, 1992Date of Patent: February 9, 1993Assignee: Mobil Oil Corp.Inventors: Thomas F. Degnan, Sharon B. McCullen, Kirk D. Schmitt, George H. Hatzikos
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Patent number: 5174976Abstract: This invention relates to a method for calcining without structural alteration crystalline [metallo]aluminophosphate compositions, e.g, those comprising pores which are formed by 18-membered rings. The method comprises contacting the dried composition with an inert gas at high flow rates while heating said composition to calcining temperature at a heating rate no greater than 10.degree. C./minute. Thereafter the composition is contacted at calcining temperature with an oxygen-containing gas at high flow rates.Type: GrantFiled: December 31, 1990Date of Patent: December 29, 1992Assignee: Mobil Oil CorporationInventors: Cynthia T. Chu, Jeffrey S. Beck
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Patent number: 5169614Abstract: This invention relates to a new crystalline silicoaluminophosphate composition, to a new and useful improvement in synthesizing said crystalline composition and to use of said crystalline composition prepared in accordance herewith as a catalyst component for organic compound, e.g. hydrocarbon compound, conversion.Type: GrantFiled: April 8, 1988Date of Patent: December 8, 1992Assignee: Mobil Oil CorporationInventors: Clarence D. Chang, John D. Lutner
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Patent number: 5147626Abstract: This invention relates to a new crystalline aluminophosphate composition, to a new and useful improvement in synthesizing said crystalline composition and to use of said crystalline composition prepared in accordance herewith as a catalyst component for organic compound, e.g. hydrocarbon compound, conversion.Type: GrantFiled: April 8, 1988Date of Patent: September 15, 1992Assignee: Mobil Oil CorporationInventors: Clarence D. Chang, John D. Lutner
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Patent number: 5147627Abstract: This invention relates to a new crystalline silicoaluminophosphate composition, to a new and useful improvement in synthesizing said crystalline composition and to use of said crystalline composition prepared in accordance herewith as a catalyst component for organic compound, e.g. hydrocarbon compound, conversion.Type: GrantFiled: April 8, 1988Date of Patent: September 15, 1992Assignee: Mobil Oil CorporationInventors: Clarence D. Chang, John D. Lutner
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Patent number: 5141728Abstract: This invention relates to a new crystalline aluminophosphate composition, to a new and useful improvement in synthesizing said crystalline composition and to use of said crystalline composition prepared in accordance herewith as a catalyst component for organic compound, e.g. hydrocarbon compound, conversion.Type: GrantFiled: April 8, 1988Date of Patent: August 25, 1992Assignee: Mobil Oil CorporationInventors: Clarence D. Chang, John D. Lutner
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Patent number: 5141729Abstract: This invention relates to a new crystalline metalloaluminophosphate composition, to a new and useful improvement in synthesizing said crystalline composition and to use of said crystalline composition prepared in accordance herewith as a catalyst component for organic compound, e.g. hydrocarbon compound, conversion.Type: GrantFiled: April 8, 1988Date of Patent: August 25, 1992Assignee: Mobil Oil CorporationInventors: Clarence D. Chang, John D. Lutner
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Patent number: 5139989Abstract: This invention relates to a catalytic composite which is an amorphous solid solution of phosphorus, silicon and aluminum oxides. The composite is characterized in that it contains from about 5 to about 50 weight percent Al.sub.2 O.sub.3, from about 10 to about 90 weight percent SiO.sub.2 and from about 5 to about 40 weight percent P.sub.2 O.sub.5 and has pores whose average diameters range from about 30 to about 200 Angstroms. The composite is further characterized in that it has a pore volume of about 0.35 to about 0.75 cc/g and a surface area of about 200 to about 420 m.sup.2 /g. The composite may be prepared by forming a mixture of sols of alumina and silica and a phosphorus compound, gelling the mixture to form particles and then calcining the particles to provide the amorphous solid solution.Type: GrantFiled: August 28, 1991Date of Patent: August 18, 1992Assignee: UOPInventors: Tai-Hsiang Chao, Michael W. Schoonover
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Patent number: 5126308Abstract: This invention relates to an improved process for converting methanol to light olefins and to a catalyst for carrying out the process. The catalyst comprises a metal aluminophosphate molecular sieve having the empirical formula (EL.sub.x Al.sub.y P.sub.z)O.sub.2 where EL is a metal and x, y and z are mole fractions of EL, Al and P respectively. Preferred metals are silicon, magnesium and cobalt, with silicon especially preferred. The molecular sieve catalyst is composed of particles at least 50% of which have a particle size less than 1.0 .mu.m and no more than 10% of the particles have a particle size greater than 2.0 .mu.m. It is also preferred that the metal content (x) be from about 0.005 and 0.05 mole fraction.Type: GrantFiled: November 13, 1991Date of Patent: June 30, 1992Assignee: UOPInventors: Paul T. Barger, Stephen T. Wilson, Jennifer S. Holmgren
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Patent number: 5124302Abstract: A monolithic ceramic structure, useful as a support for catalytic material or as a fluid filter, has a high surface area phase which consists essentially of a porous metal oxide material, at least 50% by weight of which is alumina, titania, and/or zirconia, and phosphate dispersed substantially throughout the porous metal oxide material. The presence of the phosphate stabilizes the porous metal oxide material against thermal degradation during sintering or exposure to elevated temperatures encountered in catalytic service and thereby aids in the retention of higher overall surface area in the monolithic structure.Type: GrantFiled: April 9, 1991Date of Patent: June 23, 1992Assignee: Corning IncorporatedInventors: Irwin M. Lachman, Jimmie L. Williams, Kenneth E. Zaun
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Patent number: 5124136Abstract: Crystalline metalloaluminophosphate compositions having pore windows formed by 18 tetrahedral members are prepared from a forming mixture containing sources of aluminum, phosphorus and a non-aluminum, non-phosphorus element, e.g. boron or boron and silicon. The forming mixture further contains a directing agent comprising a mixture of quaternary nitrogen compound and amine in a molar ratio of 0.01 to 0.025.Type: GrantFiled: June 26, 1990Date of Patent: June 23, 1992Assignee: Mobil Oil CorporationInventor: Mark E. Davis
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Patent number: 5112790Abstract: A catalyst used for purifying exhaust gases resulting from the combustion of a lean fuel-air mixture mixture comprises a porous support material having a framework formed by MO.sub.2, where M is silicon or a metal, AlO.sub.2 and PO.sub.2, and at least one base metal and at least one metal of the platinum group which are carried on ion exchange sites of the support material a coexistent state. The catalyst exhibits a high level of NO.sub.x conversion for a long time even at a high temperature owing to the high heat resistance and durability of the support material, and the cooperative action of the two kinds of metals, i.e. the promotion of the catalytic action of the base metal (e.g. copper) by the metal of the platinum group (e.g. palladium) serving as cocatalyst.Type: GrantFiled: April 27, 1990Date of Patent: May 12, 1992Assignees: Kabushiki Kaisha Toyota Chuo Kenkyusho, Toyota Jidosha Kabushiki KaishaInventors: Yoshihide Watanabe, Mareo Kimura, Shinichi Matsumoto
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Patent number: 5110776Abstract: A process for preparing a zeolite containing catalyst which has improved attrition resistance, and causes improved octane with no appreciable change in dry gas and coke make when used during catalytic cracking processes is disclosed. The catalyst is prepared by modifying the zeolite with a phosphate containing solution. The zeolite preferably includes an REY large pore zeolite. Treatment of the zeolite is best accomplished in an aqueous solution, at a pH range from about 2 to about 6, containing a water soluble phosphate compound. The phosphate treatment of the zeolite is carried out by deagglomerating the zeolite in an aqueous mixture in the presence of an aqueous phosphate containing solution, such as an aqueous solution of ammonium monohydrogen phosphate. The aqueous mixture containing phosphate modified zeolite is then combined with matrix precursors to form a slurry. The slurry is preferably spray dried to form the catalyst having a diameter less than 200 microns.Type: GrantFiled: March 12, 1991Date of Patent: May 5, 1992Assignee: Mobil Oil Corp.Inventors: Girish K. Chitnis, Joseph A. Herbst
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Patent number: 5102849Abstract: Alkylene oxide adducts of organic compounds having active hydrogen atoms are prepared by a process which comprises contacting and reacting an alkylene oxide reactant comprising one or more vicinal alkylene oxides with an active hydrogen containing reactant comprising one or more compounds having active hydrogen atoms in the presence of a catalyst which comprises one or more compounds comprising a rare earth element and phosphorus supported on an inert porous support. The product alkoxylates are known to be useful, for instance, as nonionic surfactants, wetting and emulsifying agents, solvents, and chemical intermediates.Type: GrantFiled: July 31, 1991Date of Patent: April 7, 1992Assignee: Shell Oil CompanyInventors: Richard A. Kemp, Paul R. Weider
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Patent number: 5102642Abstract: Crystalline aluminophosphates and related compounds having in the as-synthesized anhydrous form the chemical composition mR(X.sub.n Al.sub.q P.sub.x)O.sub.2, wherein R represents 1,4-diaminobutane as defined hereinbefore, X represents one or more elements which can be substituted for Al and/or P, whereinm=0-0.33n=0-0.40q=0.30-0.60x=0.30-0.60and wherein n+q+x=1 and having an X-ray diffraction pattern containing at least the lines as given in Table A, B, C, D, E or F.The compounds can be prepared from a forming solution or gel comprising a source of alumina, a source of phosphorus, 1,4-diaminobutane and optionally a source of at least one component X wherein the various sources are present in certain specified molar ratios, by keeping the solution or gel at elevated temperature for a time sufficient to produce crystalline aluminophosphates or related compounds.Type: GrantFiled: March 29, 1991Date of Patent: April 7, 1992Assignee: Shell Oil CompanyInventors: David M. Clark, Ronald J. Dogterom, Bettina Kraushaar-Czarnetzki
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Patent number: 5098877Abstract: 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 temperature 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: December 10, 1990Date of Patent: March 24, 1992Assignee: UOPInventors: Peter K. Coughlin, Regis J. Pellet
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Patent number: 5094990Abstract: An iron-antimony-phosphorus-containing metal oxide catalyst for the catalytic oxidation, comprising a crystalline iron antimonate, the catalyst being represented by the following empirical formula:Fe.sub.a Sb.sub.b P.sub.c X.sub.d Q.sub.e R.sub.f O.sub.g (SiO.sub.2).sub.Type: GrantFiled: June 20, 1990Date of Patent: March 10, 1992Assignee: Nitto Chemical Industry Co., Ltd.Inventors: Yutaka Sasaki, Masato Otani, Hiroshi Utsumi, Kazuo Morishita
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Patent number: 5087347Abstract: A silicoaluminophosphate molecular sieve is disclosed and is characterized in that the P.sub.2 O.sub.5 to alumina mole ratio at the surface is about 0.80 or less, the P.sub.2 O.sub.5 to alumina mole ratio of the bulk is 0.96 or greater and the silicon content at the surface is greater than that of the bulk. Also described is the use of the silicoaluminophosphate molecular sieve in hydrocarbon conversion processes.Type: GrantFiled: July 11, 1990Date of Patent: February 11, 1992Assignee: Chevron Research CompanyInventor: Stephen J. Miller
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Patent number: 5081086Abstract: A novel solid phosphoric acid catalyst composition is disclosed. The composite comprises solid phosphoric acid and a refractory oxide binder. The composite is characterized in that 25.0 volume percent or less of the total catalyst pore volume consists of pores having a diameter of 10,000 .ANG. or greater. An improvement in catalyst activity and stability is observed when such a catalyst is utilized in a hydrocarbon conversion process.Type: GrantFiled: December 18, 1989Date of Patent: January 14, 1992Assignee: UOPInventors: Fiona P. Wilcher, Tai-Hsiang Chao
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Patent number: 5070061Abstract: Catalysts containing molybdenum, vanadium, phosphorus, and oxygen, optionally together with one or more metal ions, as their active constituents, are preferably disposed on an inert carrier for the oxidative dehydrogenation of isobutyric acid or its lower esters to methacrylic acid or its lower esters.Type: GrantFiled: December 7, 1990Date of Patent: December 3, 1991Assignee: Rohm GmbHInventor: Klaus Langerbeins
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Patent number: 5061672Abstract: The active mass is produced by first forming a contact mass of particulate silicon metal and particulate copper catalyst and then heating the contact mass at a temperature of between 250.degree.-335.degree. C. in the presence of methylchloride to form the active mass. Zinc can be added to the contact mass.Type: GrantFiled: January 30, 1990Date of Patent: October 29, 1991Assignee: Elkem Metals CompanyInventor: Azza A. Elattar
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Patent number: 5051386Abstract: Catalysts containing a dispersion of silica-alumina in alumina, either alone or with phosphorus components supported thereon, are employed to promote hydrocarbon conversion reactions, particularly oligomerization reactions. The dispersion preferably contains a silica-alumina cogel or copolymer dispersed in an alumina matrix. Such catalysts have strong integrity and are easily unloaded from reactor vessels.Type: GrantFiled: May 23, 1990Date of Patent: September 24, 1991Assignee: Union Oil Company of CaliforniaInventors: John W. Ward, Dennis D. Delaney
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Patent number: 5049366Abstract: Crystalline aluminophosphates and related compounds having in the as-synthesized anhydrous form the chemical composition:m'R(X.sub.n Al.sub.q P.sub.x)O.sub.2, wherein R represents ethylenediamine, X represents one or more elements which can be substituted for Al and/or P, whereinm'=0.01-0.33n=0-0.50q=0.30-0.60x=0.30-0.60and wherein n+q+x=1.The compounds can be prepared from a forming solution or gel comprising a source of aluminum, a source of phosphorus, ethylenediamine and optionally a source of at least one component X, which mixture is kept at elevated temperature for a period of time sufficient to produce a crystalline aluminophosphate or related compound followed by separating off the crystalline product obtained and drying, and which may subsequently be calcined.Type: GrantFiled: January 22, 1990Date of Patent: September 17, 1991Assignee: Shell Oil CompanyInventors: David M. Clark, Ronald J. Dogterom
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Patent number: 5039644Abstract: A monolithic ceramic structure, useful as a support for catalytic material or as a fluid filter, has a high surface area phase which consists essentially of a porous metal oxide material, at least 50% by weight of which is alumina, titania, and/or zirconia, and phosphate dispersed substantially througout the porous metal oxide material. The presence of the phosphate stabilizes the porous metal oxide material against thermal degradation during sintering or exposure to elevated temperatures encountered in catalytic service and thereby aids in the retention of higher overall surface area in the monolithic structure.Type: GrantFiled: January 10, 1989Date of Patent: August 13, 1991Assignee: Corning IncorporatedInventors: Irwin M. Lachman, Jimmie L. Williams, Kenneth E. Zaun
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Patent number: 5037790Abstract: Disclosed is a solid catalyst functionalized with sulfonic groups, containing from 20 to 99% by weight of silica, with the residual percentage being definable by means of the formula:(ZrP.sub.2 O.sub.7).sub.1-x {(Zr(HPO.sub.4).sub.2-y.[O.sub.3 P-R(SO.sub.3 H).sub.n ].sub.y }.sub.xwherein:R is an either linear or branched linear hydrocarbon radical containing from 1 to 10 carbon atoms, or an aryl radical;x is a numeral higher than 0 and of up to 1;y is a numeral higher than 0 and of up to 2;n is either 1 or 2;with said catalyst furthermore showing silicon-oxygen-phosphorus bonds on N.M.R. examination and being amorphous or substantially amorphous when examined under X rays.The catalyst is useful in the acidic catalysis, for example in reactions of hydrocarbon conversion, such as alkylation, isomerization and oligomerization. The product according to the present invention is furthermore useful as an ion exchange agent.Type: GrantFiled: March 5, 1990Date of Patent: August 6, 1991Assignee: Eniricerche S.p.A.Inventors: Mario G. Clerici, Giulio Alberti, Marinella Malentacchi, Giuseppe Bellussi, Aldo Prevedello, Carlo Corno
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Patent number: 5035870Abstract: Crystalline aluminophosphates and related compounds having in the as-synthesized anhydrous form the chemical composition: m'R(X.sub.n Al.sub.q P.sub.x)O.sub.2, wherein R is derived from a 2,2'-bipyridyl moiety, X represents one or more elements which can be substituted for Al and/or P, whereinm'=0.01-0.33n=0-0.40q=0.30-0.60x=0.30-0.60and wherein n+q+x=1.Type: GrantFiled: May 15, 1990Date of Patent: July 30, 1991Assignee: Shell Oil CompanyInventors: David M. Clark, Ronald J. Dogterom
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Patent number: 5023224Abstract: Alkylene oxide adducts of organic compounds having active hydrogen atoms are prepared by a process which comprises contacting and reacting an alkylene oxide reactant comprising one or more vicinal alkylene oxides with an active hydrogen containing reactant comprising one or more compounds having active hydrogen atoms in the presence of a catalytically effective amount of one or more lanthanum compounds comprising silicate, metasilicate and mixtures thereof. The product alkoxylates are known to be useful, for instance, as nonionic surfactants, wetting and emulsifying agents, solvents, and chemical intermediates.Type: GrantFiled: April 16, 1990Date of Patent: June 11, 1991Assignee: Shell Oil CompanyInventor: Richard A. Kemp
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Patent number: 4983276Abstract: The catalytic cracking of a hydrocarbon oil to provide a product of increased octane number and increased C.sub.5 + gasoline content is carried out employing a cracking catalyst composition containing both a large pore crystalline zeolite component and an MCM-22 zeolite component.Type: GrantFiled: January 29, 1990Date of Patent: January 8, 1991Assignee: Mobil Oil Corp.Inventors: Robert P. L. Absil, Philip J. Angevine, Robert G. Bundens, Joseph A. Herbst