WO2004016552A1 - ゼオライト成形体の製造方法及びゼオライト積層複合体の製造方法 - Google Patents
ゼオライト成形体の製造方法及びゼオライト積層複合体の製造方法 Download PDFInfo
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- WO2004016552A1 WO2004016552A1 PCT/JP2003/010373 JP0310373W WO2004016552A1 WO 2004016552 A1 WO2004016552 A1 WO 2004016552A1 JP 0310373 W JP0310373 W JP 0310373W WO 2004016552 A1 WO2004016552 A1 WO 2004016552A1
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- Prior art keywords
- zeolite
- producing
- heat treatment
- molded body
- zeolite molded
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- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 title claims abstract description 140
- 229910021536 Zeolite Inorganic materials 0.000 title claims abstract description 136
- 239000010457 zeolite Substances 0.000 title claims abstract description 136
- 238000000465 moulding Methods 0.000 title claims abstract description 11
- 239000002131 composite material Substances 0.000 title claims description 19
- 238000000034 method Methods 0.000 title abstract description 16
- 238000010438 heat treatment Methods 0.000 claims abstract description 51
- BGQMOFGZRJUORO-UHFFFAOYSA-M tetrapropylammonium bromide Chemical compound [Br-].CCC[N+](CCC)(CCC)CCC BGQMOFGZRJUORO-UHFFFAOYSA-M 0.000 claims abstract description 41
- 238000002360 preparation method Methods 0.000 claims abstract description 34
- LPSKDVINWQNWFE-UHFFFAOYSA-M tetrapropylazanium;hydroxide Chemical compound [OH-].CCC[N+](CCC)(CCC)CCC LPSKDVINWQNWFE-UHFFFAOYSA-M 0.000 claims abstract description 34
- 239000007788 liquid Substances 0.000 claims abstract description 21
- 238000001035 drying Methods 0.000 claims abstract description 16
- 238000002425 crystallisation Methods 0.000 claims abstract description 15
- 230000008025 crystallization Effects 0.000 claims abstract description 15
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000001556 precipitation Methods 0.000 claims abstract description 7
- 239000012528 membrane Substances 0.000 claims description 54
- 238000004519 manufacturing process Methods 0.000 claims description 36
- 238000004898 kneading Methods 0.000 claims description 14
- -1 tetrapropylammonium ion Chemical class 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 5
- 238000001694 spray drying Methods 0.000 claims description 3
- 239000002808 molecular sieve Substances 0.000 abstract description 12
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 abstract description 12
- 238000000926 separation method Methods 0.000 abstract description 10
- 238000005373 pervaporation Methods 0.000 abstract description 9
- 230000007423 decrease Effects 0.000 abstract description 2
- 238000005336 cracking Methods 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 33
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 24
- 239000000758 substrate Substances 0.000 description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 20
- 239000010408 film Substances 0.000 description 14
- 239000003795 chemical substances by application Substances 0.000 description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 11
- 238000003756 stirring Methods 0.000 description 11
- 239000002245 particle Substances 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 7
- 239000013078 crystal Substances 0.000 description 7
- 238000012423 maintenance Methods 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 6
- 239000002585 base Substances 0.000 description 6
- 238000002441 X-ray diffraction Methods 0.000 description 5
- 238000001354 calcination Methods 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- 229910001220 stainless steel Inorganic materials 0.000 description 5
- 239000010935 stainless steel Substances 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- FLVKFIUSROZKPN-UHFFFAOYSA-N azane;tetrapropylazanium Chemical compound N.CCC[N+](CCC)(CCC)CCC FLVKFIUSROZKPN-UHFFFAOYSA-N 0.000 description 3
- 239000012153 distilled water Substances 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 229920002313 fluoropolymer Polymers 0.000 description 3
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 3
- 239000004570 mortar (masonry) Substances 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- OSBSFAARYOCBHB-UHFFFAOYSA-N tetrapropylammonium Chemical compound CCC[N+](CCC)(CCC)CCC OSBSFAARYOCBHB-UHFFFAOYSA-N 0.000 description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000009694 cold isostatic pressing Methods 0.000 description 2
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052863 mullite Inorganic materials 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- CBXCPBUEXACCNR-UHFFFAOYSA-N tetraethylammonium Chemical compound CC[N+](CC)(CC)CC CBXCPBUEXACCNR-UHFFFAOYSA-N 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- VZSRBBMJRBPUNF-UHFFFAOYSA-N 2-(2,3-dihydro-1H-inden-2-ylamino)-N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]pyrimidine-5-carboxamide Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C(=O)NCCC(N1CC2=C(CC1)NN=N2)=O VZSRBBMJRBPUNF-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 239000005388 borosilicate glass Substances 0.000 description 1
- 150000003842 bromide salts Chemical class 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052878 cordierite Inorganic materials 0.000 description 1
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 238000001027 hydrothermal synthesis Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 239000006082 mold release agent Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- WGYKZJWCGVVSQN-UHFFFAOYSA-O propan-1-aminium Chemical compound CCC[NH3+] WGYKZJWCGVVSQN-UHFFFAOYSA-O 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/22—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion
- B01D53/228—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion characterised by specific membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/10—Supported membranes; Membrane supports
- B01D69/107—Organic support material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/36—Pervaporation; Membrane distillation; Liquid permeation
- B01D61/362—Pervaporation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
- B01D67/0039—Inorganic membrane manufacture
- B01D67/0048—Inorganic membrane manufacture by sol-gel transition
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
- B01D67/0039—Inorganic membrane manufacture
- B01D67/0051—Inorganic membrane manufacture by controlled crystallisation, e,.g. hydrothermal growth
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
- B01D67/0081—After-treatment of organic or inorganic membranes
- B01D67/0095—Drying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/10—Supported membranes; Membrane supports
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/12—Composite membranes; Ultra-thin membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/02—Inorganic material
- B01D71/028—Molecular sieves
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B37/00—Compounds having molecular sieve properties but not having base-exchange properties
- C01B37/02—Crystalline silica-polymorphs, e.g. silicalites dealuminated aluminosilicate zeolites
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2323/00—Details relating to membrane preparation
- B01D2323/08—Specific temperatures applied
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2323/00—Details relating to membrane preparation
- B01D2323/08—Specific temperatures applied
- B01D2323/081—Heating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2323/00—Details relating to membrane preparation
- B01D2323/24—Use of template or surface directing agents [SDA]
Definitions
- the present invention relates to a method for producing a zeolite molded body and a method for producing a zeolite laminated composite.
- the present invention relates to a method for producing a zeolite molded article and a method for producing a zeolite laminated composite. More specifically, a zeolite membrane can be formed and maintained on it without generating cracks, and when used as a gas separation membrane such as a molecular sieve membrane or a pervaporation membrane, the pressure loss is reduced and the mechanical strength is reduced.
- TECHNICAL FIELD The present invention relates to a method for producing a zeolite molded article and a method for producing a zeolite laminated composite which can efficiently produce a zeolite molded article satisfying both of the maintenance and improvement of the above. Background technology ''
- zeolite compacts composed of zeolite particles have been widely used for catalysts, catalyst carriers, adsorbents, etc., including molecular sieve membranes (gas separation membranes, pervaporation membranes).
- a zeolite film is formed on a porous substrate, and is sometimes used as a zeolite laminated composite. Under these circumstances, various methods for producing a zeolite laminated composite have been proposed.
- the present invention also relates to a method for crystallizing zeolite on the surface of a monolithic ceramic support as a substrate, comprising 45 to 4% by mass silica, 8 to 45% by mass alumina, And a monolithic support having an oxide composition composed of 7-20% by mass magnesia has been proposed (Japanese Patent Application Laid-Open No. 11-48771). Sintered monolithic supports have been proposed.
- the present invention relates to a method for producing an A-type or faujasite-type zeolite film, and a method using a substrate composed of a substance containing silicon oxide as a main component has been proposed.
- the purpose of this method is to improve the problem of poor adhesion of the zeolite film to the substrate.
- the raw material of the zeolite film is used as the substrate itself, and the substrate surface is made into a zeolite film due to its configuration. Therefore, the synthesis and the attachment can proceed simultaneously, and the process can be simplified.
- a substrate made of borosilicate glass, quartz glass, silica alumina, mullite, or the like has been proposed.
- zeolite has a very complicated behavior, with a very small coefficient of thermal expansion up to about 200 ° C, but showing a negative coefficient at high temperatures thereafter. For this reason, when the zeolite film is used at a temperature exceeding 200 ° C., the difference in thermal expansion between the zeolite film and a substrate, for example, an alumina substrate, becomes extremely large, and cracks are generated in the zeolite film due to thermal stress. Will be squeezed.
- zeolite membrane depending on the type of zeolite membrane, it may be necessary to add a type III agent or a crystallization accelerator during synthesis.
- the zeolite membrane containing the mold agent is calcined at about 500 ° C. to remove the mold agent, but as shown in the thermal expansion curve of the MFI zeolite in FIG. 3, the zeolite membrane containing the mold agent is removed.
- the thermal expansion behavior (thermal expansion curve before calcination in Fig. 3) is extremely different from the thermal expansion behavior of the zeolite membrane without the type III agent (thermal expansion curve after calcination in Fig. 3).
- a zeolite composite membrane (International Publication No. WO 00/23378) has been proposed which removes the type III agent from the membrane and the substrate at the same time. These membranes and structures are excellent in that the size of the pores can be accurately adjusted and the generation of cracks can be effectively prevented.
- the method for producing a zeolite molded article thus configured can form and maintain a zeolite membrane thereon without generating cracks, and when used as a gas separation membrane such as a molecular sieve membrane or a pervaporation membrane, It is possible to produce a zeolite compact that satisfies both the reduction of pressure loss and the maintenance and improvement of mechanical strength.
- the particle size of the zeolite compact can be reduced by increasing the ratio of the tetrapropylammonium hydroxide (TPAOH) solution to the total amount of tetrapropylammonium ion (TPA).
- the present invention further improves the above-described method for producing a zeolite molded article, and reduces the proportion of a relatively expensive tetrapropylammonium hydroxide (TPAOH) solution with respect to the total amount of tetrapropylammonium ion (TPA). Even in this case, the particle size can be reduced, and a zeolite membrane can be formed and maintained thereon without generating cracks, and it can be used as a gas separation membrane such as a molecular sieve membrane or a pervaporation membrane.
- TPAOH tetrapropylammonium hydroxide
- Zeolite compact that satisfies both reduction of pressure loss and maintenance and improvement of mechanical strength It is an object of the present invention to provide a method for producing a zeolite molded body and a method for producing a zeolite laminated composite, which can efficiently produce a zeolite.
- a method for producing a zeolite molded article of the present invention comprises the steps of: adding a tetrapropylammonium hydroxide (TPAOH) solution and tetrapropylammonium bromide (TPABr) to silica sol; The proportion of each of tetrapropylammonium hydroxide mouth oxide (TPAOH) and tetrapropylammonium bromide (TPABr) relative to the total amount of tetrapropylammonium ion (TPA) [TPAOHZ (TPAOH + TPABr), And TP AB r / (TP AOH + TP AB r)] 0-99 mol% and 100-; Mole %, And heat-treated the prepared solution in a closed container under conditions that do not cause crystallization and / or precipitation in the prepared solution. And drying the obtained dried gel, and subjecting the formed dried gel to a crystallization treatment in steam.
- TPAOH tetra
- the relationship between the heat treatment temperature and the heat treatment time in the heat treatment is preferably represented by the following formula (2).
- the tetrapropyl ammonium ion (TPA) source may be composed of only TPABr.
- the drying method of the preparation liquid is stationary drying, drying while kneading, or direct spray drying.
- the zeolite constituting the obtained zeolite molded body is preferably an MFI type, and the bending strength of the zeolite molded body is preferably 1.5 MPa or more. .
- a method for producing a zeolite laminated composite of the present invention is characterized in that a zeolite molded article is produced by the above-described method for producing a zeolite molded article, and a zeolite membrane is laminated on the obtained zeolite molded article.
- FIG. 1 is a graph showing the relationship between the heating temperature and the heating time in the heat treatment step in the method for producing a zeolite molded article of the present invention.
- FIG. 2 is a graph showing a thermal expansion curve of MF type I zeolite.
- FIG. 3 is a graph showing the thermal expansion curves of MF type I zeolite (before and after calcination) and alumina.
- a method for producing a zeolite molded body includes: adding a tetrapropylammonium hydroxide (TPAOH) solution and tetrapropylammonium bromide (TPABr) to a silica sol; ⁇ beam mixing ratio of ions (TPA) and the silica sol (TPA / S i 0 2) so that a predetermined molar ratio, and tetrapropylammonium ammonium Niu beam to the total amount of these tetrapropyl ammonium Niu-ion (TPA)
- the respective mixing ratios of hydroxide (TPAOH) and tetrapropylammonium bromide (TPABr) [TPAOH / (TPAOH + TPABr) and TPABr / (TPAOH + TPABr)] are 0
- the prepared solution is adjusted to be about 99 mol% and 100 to 1 mol%, and the resulting preparation is heat-treated
- obtaining a preparation liquid flexural strength is adjusted to TP AZ 3 1_Rei 2 molar ratio 0.04 to be the maximum.
- the propyl ammonium ion (TPA) source may be composed of only TP ABr.
- preparation is, those containing sodium hydroxide of It may be.
- the pH of the preparation liquid can be adjusted.
- an alkali source such as a hydration power lime may be added.
- the prepared solution is placed in a container made of a material that does not react with the prepared solution, for example, a container made of a fluororesin or the like, and the container made of the fluororesin containing the prepared solution is placed in a closed container and tightly closed.
- a pressure-resistant container can be preferably used because the internal pressure may increase in a heat treatment described later. Further, in the present embodiment, it is sufficient that the prepared liquid is kept in a sealed state. For example, the prepared liquid may be directly put in a closed container and sealed.
- the prepared solution in the closed container is subjected to a heat treatment under conditions that do not cause crystallization and / or precipitation in the prepared solution.
- a heat treatment means a drier, a thermostat, or the like can be preferably used because it is easy to control the prepared solution to a predetermined temperature. Further, heat treatment may be performed using a heating means such as a hot water bath.
- the conditions of the heat treatment performed in the present embodiment are not particularly limited as long as crystallization and Z or precipitation do not occur in the preparation solution, but are different as shown in FIG.
- the zeolite compact was manufactured under the conditions, and the heat treatment conditions were calculated from the results of evaluation of the obtained zeolite compact.
- the conditions under which crystallization and no or precipitation did not occur in the preparation solution were heating
- the relationship between the heat treatment temperature and the heat treatment time in the treatment is preferably represented by the following formula (3).
- the heat treatment time (y) is less than 10 ( — ⁇ / 26 + 3 ⁇ 47 ⁇ ) , the effect of atomization by the heat treatment may not be obtained. If the treatment time (y) is 1 o " / m3'w ) or more, zeolite may be crystallized in the preparation liquid during the heat treatment.
- the heating temperature was 60 ° C. and the heating time was 68 hours.
- the heat treatment After the heat treatment, remove the prepared solution together with the sealed container from the dryer, and cool the prepared solution to room temperature. At the time of cooling, it may be in a state of being sealed in an airtight container or in a state of being taken out of the airtight container.
- the cooled preparation is dried to obtain a dried gel.
- the method for drying the preparation is not particularly limited as long as it can remove moisture from the preparation satisfactorily. Specific drying methods include, for example, standing drying, direct spray drying of the sol using a spray dryer or the like, or drying with stirring and kneading.
- Drying with stirring and kneading is performed by placing the prepared solution in a fluoroplastic beaker, stirring with a magnetic mixer, and then using a fluoroplastic rod while heating in a thermostat set at a predetermined temperature.
- a preferred example is a method of evaporating water by continuously stirring and kneading manually. The stirring and kneading at this time may be performed by a heating kneader or the like. If the preparation is gelled, it may be manually stirred and kneaded from the beginning. Next, the obtained dried gel is shaped into a predetermined shape by uniaxial press molding (total pressure: 196 MPa), and then cold isostatic pressing is performed to obtain a dried gel molded body. At this time, the pressure of the cold isostatic pressing is preferably adjusted in the range of 68 to 6886 MPa so as to obtain a desired dry gel molded body density.
- the dried gel molded body obtained as described above is placed in a stainless steel pressure-resistant container with a fluorine resin inner cylinder filled with distilled water of the same weight as the molded body so as to prevent contact with water.
- a fluorine resin inner cylinder filled with distilled water of the same weight as the molded body so as to prevent contact with water.
- the reaction temperature and time are not particularly limited as long as the crystallization proceeds at 130 ° C. or more and 2 hours or more. Further, the washing and drying steps performed after the crystallization treatment may be omitted.
- the zeolite constituting the zeolite molded body is of the MFI type.
- the zeolite molded article manufactured according to the present embodiment can be suitably used as a porous substrate for supporting a zeolite membrane. You.
- the method for producing a zeolite laminate composite of the present embodiment is characterized in that a zeolite molded article is produced by the above-described method for producing a zeolite molded article, and a zeolite membrane is laminated on the obtained zeolite molded article.
- a zeolite molded body obtained by the above-described production method is immersed in a solution having the same or similar composition as the preparation liquid, and hydrothermally synthesized.
- a zeolite film containing a molding agent is formed on the zeolite molded body to form a laminated body of the zeolite molded body and the zeolite film containing the molding agent, and the laminate is calcined.
- a preferred example is a method of simultaneously removing the mold release agent. It is preferable that the zeolite compact and the zeolite membrane are composed of the same or similar zeolite.
- the zeolite constituting the zeolite film used in the present embodiment is not particularly limited, but, for example, MFI, AFI, DDR, BEA, FAU, LTA and the like are preferable. Appropriately used.
- the type III agent may be, for example, tetrapropylammonium hydroxide (TPAOH) to be contained in a zeolite membrane composed of MFI.
- TPAOH tetrapropylammonium hydroxide
- Preferred examples include tetrapropylammonium bromide (TPABr) and hydroxides and bromides of tetraethylammonium (TEA) contained in a zeolite membrane composed of BEA.
- the fluororesin container containing the obtained preparation was placed in a small stainless steel pressure vessel and sealed. Next, this pressure vessel was placed in a pre-heated drier and heat-treated. Table 1 shows the heating temperature and heating time.
- Example 1 60 68 Amorphous good 5.2
- Example 2 806 Amorphous good 4.1
- Example 3 80 20 Amorphous good 4.8
- Example 4 80 68 Amorphous good 3.5
- Example 5 80 164 Amorphous good 1.6
- Example 6 100 1 Non-good good 7.9
- Example 7 100 6
- Example 8 100 68 Amorphous good 1.9
- Example 9 120 3 Amorphous good 3.3
- Example 10 120 20 Amorphous good 2.8
- Example 1 140 3 Amorphous good 4.3 Comparative example 1 Amorphous good 12 Comparative example 2 80 236 MF I fragile
- This dried gel was ground in an agate mortar for about 3 hours, and the resulting powder was formed into a disk with a diameter of about 20 mm and a thickness of about 2 mm by die-shaft press molding (total pressure of 196 MPa).
- total pressure 196 MPa
- a molded product was obtained.
- This molded product is placed in a 10 Oml fluororesin container filled with about 1.5 times (weight) of ion-exchanged water by weight of the molded product so as not to come in contact with water.
- This prepared solution was placed in a warm bath heated to 80 ° C. and heated and stirred by a magnetic stirrer.
- the dried gel is ground in an agate mortar for about 3 hours, and the resulting powder is formed into a disk with a diameter of about 20 mm and a thickness of about 2 mm by die-shaft press molding (total pressure of 196 MPa).
- a molded article was obtained.
- This molded body is placed in a 100 ml fluororesin container containing about 1.5 times (weight) ion exchange water of the molded body so as not to come in contact with water, and the fluororesin container is made of stainless steel. After being placed in a small pressure vessel and hermetically sealed, the reaction was carried out in a dryer at 180 ° C for 18 hours under autogenous steam pressure.
- the zeolite molded body produced in Comparative Example 1 had good mechanical strength without causing shape collapse and the like, but the particle size after steam treatment was as large as 12 ⁇ m and the mechanical strength was low. It has been difficult to use it as a substrate for zeolite composites and the like.
- the fluororesin container containing the obtained preparation was placed in a small stainless steel pressure vessel and sealed. Next, this pressure vessel was placed in a pre-heated drier and heat-treated. Table 1 shows the heating temperature and heating time.
- the pressure vessel was taken out of the dryer and cooled until the prepared solution reached room temperature. At this time, crystallization of the preparation liquid occurred.
- This prepared solution was transferred to a 200 ml fluororesin container, the fluororesin container was placed in a water bath heated to 80 ° C., and stirring and kneading were continued manually using a fluororesin stirring rod. When no change in weight due to evaporation of water was observed, the heating and kneading was terminated, and a white dry gel was obtained. When the crystal structure of the obtained dried gel was examined by X-ray diffraction, it was found to be MF type I zeolite.
- a zeolite membrane thereon without generating cracks, and to reduce pressure loss when used as a gas separation membrane such as a molecular sieve membrane or a pervaporation membrane. It is also possible to provide a method for producing a zeolite molded body and a method for producing a zeolite laminated composite, which can efficiently produce a zeolite molded body that satisfies both maintenance and improvement of mechanical strength.
Abstract
Description
Claims
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2003255046A AU2003255046A1 (en) | 2002-08-16 | 2003-08-15 | Process for producing zeolite molding and process for producing zeolite laminate composite |
BRPI0313531-4A BR0313531B1 (pt) | 2002-08-16 | 2003-08-15 | mÉtodo de produÇço de corpo modelado de zeàlito e mÉtodo de produÇço de compàsito em camadas de zeàlito. |
EP03788122A EP1544170B1 (en) | 2002-08-16 | 2003-08-15 | Production method for zeolite shaped body and production for zeolite layered composite |
CA002494990A CA2494990C (en) | 2002-08-16 | 2003-08-15 | Production method for zeolite shaped body and production method for zeolite layered composite |
NZ538140A NZ538140A (en) | 2002-08-16 | 2003-08-15 | Process for producing zeolite molding and process for producing zeolite laminate composite |
JP2004528887A JP4313307B2 (ja) | 2002-08-16 | 2003-08-15 | ゼオライト成形体の製造方法及びゼオライト積層複合体の製造方法 |
MXPA05001848A MXPA05001848A (es) | 2002-08-16 | 2003-08-15 | Metodo de produccion para cuerpo formado de zeolita y metodo de produccion para composicion estratificada de zeolita. |
DE60333571T DE60333571D1 (de) | 2002-08-16 | 2003-08-15 | Verfahren zur herstellung von zeolithformk rpern und verfahren zur herstellung von zeolith-schichtverbund |
US11/052,694 US7442367B2 (en) | 2002-08-16 | 2005-02-07 | Production method for zeolite shaped body and production method for zeolite layered composite |
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JP2002-237692 | 2002-08-16 | ||
JP2002237692 | 2002-08-16 |
Related Child Applications (1)
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US11/052,694 Continuation US7442367B2 (en) | 2002-08-16 | 2005-02-07 | Production method for zeolite shaped body and production method for zeolite layered composite |
Publications (1)
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WO2004016552A1 true WO2004016552A1 (ja) | 2004-02-26 |
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PCT/JP2003/010373 WO2004016552A1 (ja) | 2002-08-16 | 2003-08-15 | ゼオライト成形体の製造方法及びゼオライト積層複合体の製造方法 |
Country Status (11)
Country | Link |
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EP (1) | EP1544170B1 (ja) |
JP (1) | JP4313307B2 (ja) |
CN (1) | CN1307096C (ja) |
AU (1) | AU2003255046A1 (ja) |
BR (1) | BR0313531B1 (ja) |
CA (1) | CA2494990C (ja) |
DE (1) | DE60333571D1 (ja) |
MX (1) | MXPA05001848A (ja) |
NZ (1) | NZ538140A (ja) |
WO (1) | WO2004016552A1 (ja) |
ZA (1) | ZA200501262B (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006104028A (ja) * | 2004-10-07 | 2006-04-20 | Ngk Insulators Ltd | ゼオライト成形体の製造方法 |
CN100408476C (zh) * | 2005-09-07 | 2008-08-06 | 中国石油化工股份有限公司 | 无粘结剂zsm型分子筛的制备方法 |
JP2015189586A (ja) * | 2014-03-27 | 2015-11-02 | 株式会社タカギ | ゼオライト成形体およびその製造方法 |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107303506B (zh) * | 2016-04-21 | 2019-10-15 | 中国石油化工股份有限公司 | 一种石蜡烃择型异构化催化剂的预处理方法 |
CN109422273A (zh) * | 2017-08-31 | 2019-03-05 | 中国科学院大连化学物理研究所 | 一种合成具有ato结构杂原子金属磷酸铝分子筛的方法 |
CN109422280A (zh) * | 2017-08-31 | 2019-03-05 | 中国科学院大连化学物理研究所 | 一种合成具有afi结构磷酸铝分子筛的方法 |
CN109422272A (zh) * | 2017-08-31 | 2019-03-05 | 中国科学院大连化学物理研究所 | 一种合成具有afi结构杂原子金属磷酸铝分子筛的方法 |
CN110898684B (zh) * | 2019-11-22 | 2023-01-24 | 上海绿强新材料有限公司 | 一种emt分子筛膜的制备方法 |
CN116371463A (zh) * | 2023-03-13 | 2023-07-04 | 中触媒新材料股份有限公司 | 一种低磨损率sapo-34分子筛催化剂及其制备方法和应用 |
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US5164169A (en) * | 1991-06-14 | 1992-11-17 | Mobil Oil Corporation | Zeolite Beta |
US5675050A (en) * | 1994-01-31 | 1997-10-07 | Elf Aquitaine | Crystalline microporous solids consisting of aluminophosphates substituted by a metal and optionally by silicon and belonging to the FAU structure type, their synthesis and applications |
EP1061046A1 (en) * | 1999-06-18 | 2000-12-20 | Nippon Shokubai Co., Ltd. | Molding of binderless zeolite, method for its production and its use |
JP2001114511A (ja) * | 1999-10-18 | 2001-04-24 | Masahiko Matsukata | βゼオライトおよびその製造方法 |
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JPS59213615A (ja) * | 1983-05-13 | 1984-12-03 | Toa Nenryo Kogyo Kk | 膜状合成ゼオライト及びその製造方法 |
JP3763598B2 (ja) * | 1995-09-11 | 2006-04-05 | 旭電化工業株式会社 | トラネキサム酸の製造方法 |
JP4209085B2 (ja) * | 1998-10-20 | 2009-01-14 | 日本碍子株式会社 | ゼオライト複合膜及びその製造方法 |
BR0104781A (pt) * | 2000-03-02 | 2002-02-13 | Ngk Insulators Ltd | Corpo modelado por zeólito, corpo intermediário de zeólito, compósito em camadas de zeólito e método para produção dos mesmos |
-
2003
- 2003-08-15 BR BRPI0313531-4A patent/BR0313531B1/pt not_active IP Right Cessation
- 2003-08-15 MX MXPA05001848A patent/MXPA05001848A/es active IP Right Grant
- 2003-08-15 CA CA002494990A patent/CA2494990C/en not_active Expired - Fee Related
- 2003-08-15 AU AU2003255046A patent/AU2003255046A1/en not_active Abandoned
- 2003-08-15 ZA ZA200501262A patent/ZA200501262B/en unknown
- 2003-08-15 WO PCT/JP2003/010373 patent/WO2004016552A1/ja active Application Filing
- 2003-08-15 CN CNB038240912A patent/CN1307096C/zh not_active Expired - Fee Related
- 2003-08-15 EP EP03788122A patent/EP1544170B1/en not_active Expired - Fee Related
- 2003-08-15 NZ NZ538140A patent/NZ538140A/en unknown
- 2003-08-15 JP JP2004528887A patent/JP4313307B2/ja not_active Expired - Fee Related
- 2003-08-15 DE DE60333571T patent/DE60333571D1/de not_active Expired - Lifetime
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US5164169A (en) * | 1991-06-14 | 1992-11-17 | Mobil Oil Corporation | Zeolite Beta |
US5675050A (en) * | 1994-01-31 | 1997-10-07 | Elf Aquitaine | Crystalline microporous solids consisting of aluminophosphates substituted by a metal and optionally by silicon and belonging to the FAU structure type, their synthesis and applications |
EP1061046A1 (en) * | 1999-06-18 | 2000-12-20 | Nippon Shokubai Co., Ltd. | Molding of binderless zeolite, method for its production and its use |
JP2001114511A (ja) * | 1999-10-18 | 2001-04-24 | Masahiko Matsukata | βゼオライトおよびその製造方法 |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006104028A (ja) * | 2004-10-07 | 2006-04-20 | Ngk Insulators Ltd | ゼオライト成形体の製造方法 |
JP4589073B2 (ja) * | 2004-10-07 | 2010-12-01 | 日本碍子株式会社 | ゼオライト成形体の製造方法 |
CN100408476C (zh) * | 2005-09-07 | 2008-08-06 | 中国石油化工股份有限公司 | 无粘结剂zsm型分子筛的制备方法 |
JP2015189586A (ja) * | 2014-03-27 | 2015-11-02 | 株式会社タカギ | ゼオライト成形体およびその製造方法 |
Also Published As
Publication number | Publication date |
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NZ538140A (en) | 2006-04-28 |
CN1688510A (zh) | 2005-10-26 |
AU2003255046A1 (en) | 2004-03-03 |
MXPA05001848A (es) | 2005-06-03 |
EP1544170A4 (en) | 2006-10-11 |
DE60333571D1 (de) | 2010-09-09 |
JP4313307B2 (ja) | 2009-08-12 |
BR0313531B1 (pt) | 2013-01-22 |
EP1544170A1 (en) | 2005-06-22 |
BR0313531A (pt) | 2005-07-12 |
JPWO2004016552A1 (ja) | 2005-12-02 |
CN1307096C (zh) | 2007-03-28 |
ZA200501262B (en) | 2006-10-25 |
CA2494990A1 (en) | 2004-02-26 |
EP1544170B1 (en) | 2010-07-28 |
CA2494990C (en) | 2008-07-29 |
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