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EP2462060A2 - Famille uzm-29 de compositions zéolithiques cristallines et procédé de préparation des compositions - Google Patents

Famille uzm-29 de compositions zéolithiques cristallines et procédé de préparation des compositions

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Publication number
EP2462060A2
EP2462060A2 EP10806940A EP10806940A EP2462060A2 EP 2462060 A2 EP2462060 A2 EP 2462060A2 EP 10806940 A EP10806940 A EP 10806940A EP 10806940 A EP10806940 A EP 10806940A EP 2462060 A2 EP2462060 A2 EP 2462060A2
Authority
EP
European Patent Office
Prior art keywords
value
group
ammonium
mole ratio
mixtures
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP10806940A
Other languages
German (de)
English (en)
Inventor
Susan C. Koster
Jaime G. Moscoso
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honeywell UOP LLC
Original Assignee
UOP LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US12/535,248 external-priority patent/US8017824B2/en
Priority claimed from US12/535,254 external-priority patent/US8268290B2/en
Application filed by UOP LLC filed Critical UOP LLC
Publication of EP2462060A2 publication Critical patent/EP2462060A2/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/70—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B39/00—Compounds having molecular sieve and base-exchange properties, e.g. crystalline zeolites; Their preparation; After-treatment, e.g. ion-exchange or dealumination
    • C01B39/02—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof; Direct preparation thereof; Preparation thereof starting from a reaction mixture containing a crystalline zeolite of another type, or from preformed reactants; After-treatment thereof
    • C01B39/06—Preparation of isomorphous zeolites characterised by measures to replace the aluminium or silicon atoms in the lattice framework by atoms of other elements, i.e. by direct or secondary synthesis
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B39/00—Compounds having molecular sieve and base-exchange properties, e.g. crystalline zeolites; Their preparation; After-treatment, e.g. ion-exchange or dealumination
    • C01B39/02—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof; Direct preparation thereof; Preparation thereof starting from a reaction mixture containing a crystalline zeolite of another type, or from preformed reactants; After-treatment thereof
    • C01B39/46—Other types characterised by their X-ray diffraction pattern and their defined composition
    • C01B39/48—Other types characterised by their X-ray diffraction pattern and their defined composition using at least one organic template directing agent
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C1/00—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon
    • C07C1/20—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only oxygen atoms as heteroatoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
    • C07C5/22—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by isomerisation
    • C07C5/27—Rearrangement of carbon atoms in the hydrocarbon skeleton
    • C07C5/2767—Changing the number of side-chains
    • C07C5/277—Catalytic processes
    • C07C5/2775—Catalytic processes with crystalline alumino-silicates, e.g. molecular sieves
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G29/00—Refining of hydrocarbon oils, in the absence of hydrogen, with other chemicals
    • C10G29/20—Organic compounds not containing metal atoms
    • C10G29/205—Organic compounds not containing metal atoms by reaction with hydrocarbons added to the hydrocarbon oil
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G3/00—Production of liquid hydrocarbon mixtures from oxygen-containing organic materials, e.g. fatty oils, fatty acids
    • C10G3/42—Catalytic treatment
    • C10G3/44—Catalytic treatment characterised by the catalyst used
    • C10G3/48—Catalytic treatment characterised by the catalyst used further characterised by the catalyst support
    • C10G3/49—Catalytic treatment characterised by the catalyst used further characterised by the catalyst support containing crystalline aluminosilicates, e.g. molecular sieves
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G45/00—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds
    • C10G45/58—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to change the structural skeleton of some of the hydrocarbon content without cracking the other hydrocarbons present, e.g. lowering pour point; Selective hydrocracking of normal paraffins
    • C10G45/60—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to change the structural skeleton of some of the hydrocarbon content without cracking the other hydrocarbons present, e.g. lowering pour point; Selective hydrocracking of normal paraffins characterised by the catalyst used
    • C10G45/64—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to change the structural skeleton of some of the hydrocarbon content without cracking the other hydrocarbons present, e.g. lowering pour point; Selective hydrocracking of normal paraffins characterised by the catalyst used containing crystalline alumino-silicates, e.g. molecular sieves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2229/00—Aspects of molecular sieve catalysts not covered by B01J29/00
    • B01J2229/30—After treatment, characterised by the means used
    • B01J2229/37—Acid treatment
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G2400/00—Products obtained by processes covered by groups C10G9/00 - C10G69/14
    • C10G2400/20—C2-C4 olefins

Definitions

  • This invention relates to a new family of crystalline zeolitic compositions designated UZM-29. They are represented by the empirical formula of:
  • UZM-29 has a similar topology to phillipsite (PHI structure type) but has characteristics which differentiate it from phillipsite and phillipsite analogs.
  • Another member of the family is UZM-29HS which is a high silica version of UZM-29.
  • Zeolites are crystalline aluminosilicate compositions which are microporous and which are formed from corner sharing AlO 2 and SiO 2 tetrahedra. Numerous zeolites, both naturally occurring and synthetically prepared are used in various industrial processes.
  • Synthetic zeolites are prepared via hydrothermal synthesis employing suitable sources of Si, Al and structure directing agents such as alkali metals, alkaline earth metals, amines, or organoammonium cations.
  • the structure directing agents reside in the pores of the zeolite and are largely responsible for the particular structure that is ultimately formed. These species balance the framework charge associated with aluminum and can also serve as space fillers.
  • Zeolites are characterized by having pore openings of uniform dimensions, having a significant ion exchange capacity, and being capable of reversibly desorbing an adsorbed phase which is dispersed throughout the internal voids of the crystal without significantly displacing any atoms which make up the permanent zeolite crystal structure.
  • Zeolites can be used as catalysts for hydrocarbon conversion reactions, which can take place on outside surfaces as well as on internal surfaces within the pore.
  • UZM-29 has a three dimensional framework structure with the topology of phillipsite zeolite or the PHI structure type.
  • UZM-29 is prepared using a combination of two organic structure directing agents such as pentaethonium ammonium dihydroxide, [HEPDA(OH) 2 ] and ethyltrimethyammonioum hydroxide (ETMAOH) plus an alkali metal such as sodium using the Charge Density Mismatch Process for synthesizing zeolites as described in US Patent Application Publication No. 2005/0095195.
  • one embodiment of the invention is a microporous crystalline zeolite having a three-dimensional framework of at least SiO 2 tetrahedral units having an empirical composition in the as synthesized form and on an anhydrous basis expressed by an empirical formula of: M n TR r P+ Al 1 -x E,Si y 0 z
  • M is at least one exchangeable cation selected from the group consisting of alkali metal ions, alkaline earth metal ions, and rare earth metal ions
  • M is at least one exchangeable cation selected from the group consisting of alkali metal ions, alkaline earth metal ions, and rare earth metal ions
  • "m" is the mole ratio of M to (Al + E) and varies from greater than zero to 2
  • R is an organoammonium cation or an amine selected from the group consisting of pentaethonium ammonium dihydroxide, [HEPDA(OH) 2 ], ethyltrimethylammonio
  • DEDMA + diethyldimethylammonium
  • r is the mole ratio of R to (Al +E) and has a value of 0.05 to 5
  • n is the weighted average valence of M and has a value of 1 to 3
  • p is the weighted average valence of R and has a value of 1 to 2
  • E is an element selected from the group consisting of gallium, iron, boron and mixtures thereof
  • x is the mole fraction of E and has a value from 0 to 1.0
  • y is the mole ratio of Si to (Al + E) and varies from greater than 2 to 20
  • Another embodiment of the invention is a process for preparing the UZM-29 composition described above.
  • the process comprises forming a reaction mixture containing reactive sources of M, R, Al, Si and optionally E and heating the reaction mixture at a temperature of 100 0 C to 200 0 C for a time sufficient to form the zeolite, the reaction mixture having a composition expressed in terms of mole ratios of the oxides of: aM 2/n O : bR 2/p 0 : 1-CAl 2 O 3 : CE 2 O 3 : dSiO 2 : eH 2 O where "a” has a value from greater than zero to 5.0, "b” has a value of 1.5 to 120, “c” has a value of 0 to 1.0, “d” has a value of 2 to 10, and “e” has a value of 25 to 4000.
  • Applicants have prepared a new family of microporous crystalline zeolites having a three dimensional structure of at least SiO 2 tetrahedral units designated the UZM-29 family of zeolites which has the topological structure related to PHI as described in Atlas of Zeolites Framework Types, which is maintained by the International Zeolite Association Structure Commission at http://topaz.ethz.ch/IZA-SC/StdAtlas.htm.
  • the UZM-29 has an empirical composition in the as-synthesized form and on an anhydrous basis expressed by the empirical formula:
  • M is at least one exchangeable cation and is selected from the group consisting of alkali metal ions, alkaline earth metal ions, and rare earth metal ions.
  • M cations include but are not limited to lithium, sodium, potassium, rubidium, cesium, calcium, strontium, barium, lanthanum, ytterbium and mixtures thereof, with Na being preferred.
  • R is an organoammonium cation or an amine, examples of which include but are not limited to the pentaethonium ammonium (HEPDA) "2 , ethyltrimethylammonium, diquat-4, choline cation [(CHs) 3 NCH 2 CH 2 OH] + , diethyldimethylammonium, hexamethonium ammonium,
  • HEPDA pentaethonium ammonium
  • trimethylpiOpylammonium trimethylpentylammonium, dimethyldiethanolammonium, tetraethylammonium (TEA + ), tetrapropylammonium TPA + , dimethylbutylamine,
  • diethanolamine and mixtures there of and "r” is the mole ratio of R to (Al + E) and varies from 0.25 to 2.0.
  • Pentaethonium ammonium (HEPDA) +2 is a preferred organoammonium cation.
  • the value of "p” which is the weighted average valence of R varies from 1 to 2.
  • the value of "n” which is the weighted average valence of M varies from 1 to 3 while “m” is the mole ratio of M to (Al + E) and varies from greater than zero to 2.
  • the ratio of silicon to (Al + E) is represented by "y" which varies from greater than 2 to 10.
  • E is an element which is tetrahedrally coordinated, is present in the framework and is selected from the group consisting of gallium, iron and boron.
  • M is only one metal, then the weighted average valence is the valence of that one metal, i.e. +1 or +2.
  • UZM-29 is prepared by a hydrothermal crystallization of a reaction mixture prepared by combining reactive sources of M, R, aluminum, silicon and optionally E.
  • the sources of aluminum include but are not limited to aluminum alkoxides, precipitated aluminas, aluminum metal, aluminum salts and alumina sols.
  • Specific examples of aluminum alkoxides include, but are not limited to aluminum ortho sec-butoxide and aluminum ortho isopropoxide.
  • Sources of silica include but are not limited to tetraethylorthosilicate, colloidal silica, precipitated silica and alkali silicates.
  • Sources of the E elements include but are not limited to alkali borates, boric acid, precipitated gallium oxyhydroxide, gallium sulfate, ferric sulfate, and ferric chloride.
  • Sources of the M metals include the halide salts, nitrate salts, acetate salts, and hydroxides of the respective alkali, alkaline earth, or rare earth metals.
  • R is an organoammonium cation or an amine selected from the group consisting of pentaethonium ammonium (HEPDA) +2 , ethyltrimethylammonium, hexamethonium ammonium, diquat-4, trimethylpentylammonium, choline, diethyldimethylammonium, TEA, TPA, trimethylpropylammonium,
  • HEPDA pentaethonium ammonium
  • ethyltrimethylammonium ethyltrimethylammonium
  • hexamethonium ammonium hexamethonium ammonium
  • diquat-4 trimethylpentylammonium
  • choline diethyldimethylammonium
  • TEA diethyldimethylammonium
  • TPA trimethylpropylammonium
  • dimethyldiethanolammonium, dimethylbutylamine, diethanolamine and mixtures thereof and the sources include the hydroxide, chloride, bromide, iodide and fluoride compounds.
  • specific examples include without limitation pentaethonium ammonium dihydroxide and, ethyltrimethylammonium hydroxide.
  • the reaction mixture containing reactive sources of the desired components can be described in terms of molar ratios of the oxides by the formula: aM 2/n O : bR 2/ p0 : 1 -CAl 2 O 3 : cE 2 O 3 : dSiO 2 : eH 2 O where "a” varies from greater than O to 5.0, "b” varies from 1.5 to 120, “c” varies from 0 to 1.0, “d” varies from 2 to 10, and “e” varies from 25 to 4000. If alkoxides are used, it is preferred to include a distillation or evaporative step to remove the alcohol hydrolysis products.
  • the reaction mixture is now reacted at a temperature of 100°C to 200 0 C and preferably from 125°C to 175°C for a period of 1 day to 3 weeks and preferably for a time of 3 days to 10 days in a sealed reaction vessel under autogenous pressure.
  • the solid product is isolated from the reaction mixture by means such as filtration or centrifugation, and then washed with deionized water and dried in air at ambient temperature up to 100 0 C.
  • a preferred synthetic approach to make UZM-29 utilizes the Charge Density Mismatch process disclosed in US Patent Application Publication No. US 2005/0095195 which is incorporated by reference in its entirety.
  • the charge density mismatch process allows multiple structure directing agents to cooperate to crystallize a single structure.
  • the method employs appropriate quaternary ammonium hydroxides to solubilize aluminosilicate species, creating a reaction mixture which has difficulty crystallizing and condensing to form a solid under synthesis conditions.
  • UZM-29 pentaethonium ammonium (HEPDA) "2 dihydroxide as the charge density mismatch template and sodium as the crystallization inducing agent.
  • HEPDA pentaethonium ammonium
  • the UZM-29 crystalline microporous zeolite having at least SiO 2 tetrahedral units which is obtained from the above-described process, is characterized by an x-ray diffraction pattern having at least the d-spacings and relative intensities set forth in Table A below.
  • the microporous UZM-29 composition will contain some of the exchangeable or charge balancing cations in its pores. These exchangeable cations can be exchanged for other cations.
  • the UZM-29 zeolite may be modified in many ways to tailor it for use in a particular application. Modifications include calcination, ion-exchange, steaming, various acid extractions, ammonium hexafluorosilicate treatment, or any combination thereof, as outlined for the case of UZM-4 in US 6,776,975 Bl which is incorporated by reference in its entirety.
  • Properties that can be modified include porosity, adsorption, Si/ Al ratio, acidity, thermal stability, etc.
  • UZM-29HS The UZM-29 composition which is modified by one or more techniques described in the '975 patent (herein UZM-29HS) is described by the empirical formula on an anhydrous basis of:
  • a zeolite is virtually pure silica when y' has a value of at least 3,000, preferably 10,000 and most preferably 20,000.
  • ranges for y' are from 15 to 3,000 preferably greater than 30 to 3,000; 15 to 10,000 preferably greater than 30 to 10,000 and 15 to 20,000 preferably greater than 30 to 20,000.
  • anhydrous state of the zeolite will be intended unless otherwise stated.
  • the term “anhydrous state” is employed herein to refer to a zeolite substantially devoid of both physically adsorbed and chemically adsorbed water.
  • the crystalline UZM-29 zeolite of this invention can be used for separating mixtures of molecular species, removing contaminants through ion exchange and catalyzing various hydrocarbon conversion processes. Separation of molecular species can be based either on the molecular size (kinetic diameter) or on the degree of polarity of the molecular species.
  • the UZM-29 zeolite of this invention can also be used as a catalyst or catalyst support in various hydrocarbon conversion processes.
  • Hydrocarbon conversion processes are well known in the art and include cracking, hydrocracking, alkylation of both aromatics and isoparaffin, isomerization, polymerization, reforming, hydrogenation, dehydrogenation, transalkylation, dealkylation, hydration, dehydration, hydrotreating, hydrodenitrogenation, hydrodesulfurization, methanation and syngas shift process.
  • Specific reaction conditions and the types of feeds which can be used in these processes are set forth in US 4,310,440 and US
  • hydrocarbon conversion processes are those in which hydrogen is a component such as hydrotreating or hydrof ⁇ ning,
  • Hydrocracking conditions typically include a temperature in the range of 400° to 1200°F (204-649 0 C), preferably between 600° and 950 0 F (316-51O 0 C).
  • Reaction pressures are in the range of atmospheric to 3,500 psig (24,132 kPa g), preferably between 200 and 3000 psig (1379 - 20,685 kPa g).
  • Contact times usually correspond to liquid hourly space velocities (LHSV) in the range of 0.1 hr "1 to 15 hr "1 , preferably between 0.2 and 3 hr '1 .
  • Hydrogen circulation rates are in the range of 1,000 to 50,000 standard cubic feet (scf) per barrel of charge (178-8,888 std.
  • Suitable hydrotreating conditions are generally within the broad ranges of hydrocracking conditions set out above.
  • reaction zone effluent is normally removed from the catalyst bed, subjected to partial condensation and vapor-liquid separation and then fractionated to recover the various components thereof.
  • the hydrogen, and if desired some or all of the unconverted heavier materials, are recycled to the reactor.
  • a two-stage flow may be employed with the unconverted material being passed into a second reactor.
  • Catalysts of the subject invention may be used in just one stage of such a process or may be used in both reactor stages.
  • Catalytic cracking processes are preferably carried out with the UZM-29 composition using feedstocks such as gas oils, heavy naphthas, deasphalted crude oil residua, etc. with gasoline being the principal desired product.
  • feedstocks such as gas oils, heavy naphthas, deasphalted crude oil residua, etc.
  • gasoline being the principal desired product.
  • Temperature conditions of 850° to 1100 0 F, LHSV values of 0.5 to 10 and pressure conditions of from 0 to 50 psig are suitable.
  • Alkylation of aromatics usually involves reacting an aromatic (C 2 to Ci 2 ), especially benzene, with a monoolefin to produce a linear alkyl substituted aromatic.
  • the process is carried out at an aromatic: olefin (e.g., benzene :olefm) ratio of between 5:1 and 30:1, a LHSV of 0.3 to 6 hr "1 , a temperature of 100° to 250 0 C and pressures of 200 to 1000 psig.
  • an aromatic: olefin e.g., benzene :olefm
  • Alkylation of isoparaffins with olefins to produce alkylates suitable as motor fuel components is carried out at temperatures of -30° to 4O 0 C, pressures from atmospheric to 6,894 kPa (1,000 psig) and a weight hourly space velocity (WHSV) of 0.1 to 120. Details on paraffin alkylation may be found in US 5,157,196 and US 5,157,197, which are incorporated by reference. [0023] The following examples are presented in illustration of this invention and are not intended as undue limitations on the generally broad scope of the invention as set out in the appended claims.
  • the structures of the UZM-29 family of zeolite compositions of this invention were determined by x-ray analysis.
  • the x-ray patterns presented in the following examples were obtained using standard x-ray powder diffraction techniques.
  • the radiation source was a high- intensity, x-ray tube operated at 45 kV and 35 ma.
  • the diffraction pattern from the copper K-alpha radiation was obtained by appropriate computer based techniques.
  • Flat compressed powder samples were continuously scanned at 2° to 70° (2 ⁇ ).
  • Interplanar spacings (d) in Angstrom units were obtained from the position of the diffraction peaks expressed as ⁇ where ⁇ is the Bragg angle as observed from digitized data.
  • Intensities were determined from the integrated area of diffraction peaks after subtracting background, "I 0 " being the intensity of the strongest line or peak, and "I" being the intensity of each of the other peaks.
  • the purity of a synthesized product may be assessed with reference to its x-ray powder diffraction pattern.
  • a sample is stated to be pure, it is intended only that the x-ray pattern of the sample is free of lines attributable to crystalline impurities, not that there are no amorphous materials present.
  • peaks are identified with special identifiers as follows: very broad (vbr); broad (br); and shoulder (sh).
  • EXAMPLE IA [0029] In one container 4.02g of NaCl were dissolved in 15g of deionized water. The
  • An aluminosilicate reaction solution was prepared by mixing in a container 72.77g of aluminum sec-butoxide and 761.18g of pentaethonium ammonium hydroxide, and 150.7Og of ethyltrimethyarnmonioum hydroxide (20% solution), while stirring vigorously. After thorough mixing, 215.31g of LudoxTM AS-40 (SiO 2 , 40%) was added. The reaction mixture was homogenized for 30 minutes, sealed in a TeflonTM bottle and placed in an oven for 18 hours at 100 0 C to react the mixture and then cooled to provide an aluminosilicate solution.
  • An aluminosilicate reaction solution was prepared by mixing in a container 12.11 g of aluminum sec-butoxide and 761.18g of pentaethonium ammonium hydroxide, and 150.7Og of ethyltrimethyammonioum hydroxide (20% solution), while stirring vigorously. After thorough mixing, 215.3 Ig of LudoxTM AS-40 (SiO 2 , 40%) was added. The reaction mixture was homogenized for 30 minutes, sealed in a TeflonTM bottle and placed in a oven for 18 hours at IOOC to react the mixture and then cooled to provide an aluminosilicate solution.
  • Table B compares d-spacing for UZM-29 with examples from the literature as reported in: "A New Addition to the Phillipsite Family of Molecular Sieves: A Divalent Metal-Ion- Framework Substituted Microporous Aluminophosphate (DAF-8)", Solid State Science 2006 ,8, 337-341 Barrett, PA., Sankar, G., Catlow, C.R.A., Thomas, J.M., Jones, R.H., and Teat, SJ. Table B
  • Table B shows that UZM-29 has a different x-ray diffraction pattern to that of phillipsite.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)

Abstract

Cette invention concerne une nouvelle famille de zéolithes microporeuses cristallines désignée par famille UZM-29. Ces zéolithes sont représentées par la formule empirique : Mm n+R+rAll-x ExSiyOz. UZM-29 a la topologie de type structure PHI, mais est thermiquement stable jusqu'à une température d'au moins 350 °C. La famille UMZ-29 de zéolithes peut être utilisée dans divers procédés de conversion d'hydrocarbures, comme l'isomérisation du butane.
EP10806940A 2009-08-04 2010-07-29 Famille uzm-29 de compositions zéolithiques cristallines et procédé de préparation des compositions Withdrawn EP2462060A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US12/535,248 US8017824B2 (en) 2009-08-04 2009-08-04 Hydrocarbon conversion processes using UZM-29 and UZM-29HS crystalline zeolitic compositions
US12/535,254 US8268290B2 (en) 2009-08-04 2009-08-04 UZM-29 family of crystalline zeolitic compositions and a method of preparing the compositions
PCT/US2010/043630 WO2011017183A2 (fr) 2009-08-04 2010-07-29 Famille uzm-29 de compositions zéolithiques cristallines et procédé de préparation des compositions

Publications (1)

Publication Number Publication Date
EP2462060A2 true EP2462060A2 (fr) 2012-06-13

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US8609920B1 (en) * 2012-12-12 2013-12-17 Uop Llc UZM-44 aluminosilicate zeolite

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US6890511B2 (en) * 2003-03-21 2005-05-10 Uop Llc Crystalline aluminosilicate zeolitic composition: UZM-15
CN100575458C (zh) * 2003-09-23 2009-12-30 环球油品公司 结晶硅铝酸盐:uzm-13、uzm-17、uzm-19和uzm-25
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US7744850B2 (en) * 2006-08-03 2010-06-29 Uop Llc UZM-22 aluminosilicate zeolite, method of preparation and processes using UZM-22

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