JP7489372B2 - 粒子均一度に優れたモルデナイトゼオライト及びその製造方法 - Google Patents
粒子均一度に優れたモルデナイトゼオライト及びその製造方法 Download PDFInfo
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- JP7489372B2 JP7489372B2 JP2021504211A JP2021504211A JP7489372B2 JP 7489372 B2 JP7489372 B2 JP 7489372B2 JP 2021504211 A JP2021504211 A JP 2021504211A JP 2021504211 A JP2021504211 A JP 2021504211A JP 7489372 B2 JP7489372 B2 JP 7489372B2
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- mordenite zeolite
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- 239000010457 zeolite Substances 0.000 title claims description 113
- 229910021536 Zeolite Inorganic materials 0.000 title claims description 105
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 title claims description 105
- 229910052680 mordenite Inorganic materials 0.000 title claims description 83
- 238000004519 manufacturing process Methods 0.000 title claims description 33
- 239000002245 particle Substances 0.000 title description 65
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 202
- 239000000377 silicon dioxide Substances 0.000 claims description 99
- 239000002243 precursor Substances 0.000 claims description 74
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 70
- 239000007864 aqueous solution Substances 0.000 claims description 67
- 238000003756 stirring Methods 0.000 claims description 61
- 239000000126 substance Substances 0.000 claims description 51
- 239000004094 surface-active agent Substances 0.000 claims description 43
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 42
- 239000000243 solution Substances 0.000 claims description 40
- 230000001939 inductive effect Effects 0.000 claims description 32
- 239000000203 mixture Substances 0.000 claims description 26
- 230000015572 biosynthetic process Effects 0.000 claims description 22
- 238000002425 crystallisation Methods 0.000 claims description 22
- 230000008025 crystallization Effects 0.000 claims description 22
- 238000003786 synthesis reaction Methods 0.000 claims description 21
- 239000000411 inducer Substances 0.000 claims description 16
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 14
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 claims description 9
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 9
- 229910052782 aluminium Inorganic materials 0.000 claims description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 9
- WOWHHFRSBJGXCM-UHFFFAOYSA-M cetyltrimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCC[N+](C)(C)C WOWHHFRSBJGXCM-UHFFFAOYSA-M 0.000 claims description 6
- CPRMKOQKXYSDML-UHFFFAOYSA-M rubidium hydroxide Chemical compound [OH-].[Rb+] CPRMKOQKXYSDML-UHFFFAOYSA-M 0.000 claims description 6
- HWCKGOZZJDHMNC-UHFFFAOYSA-M tetraethylammonium bromide Chemical compound [Br-].CC[N+](CC)(CC)CC HWCKGOZZJDHMNC-UHFFFAOYSA-M 0.000 claims description 6
- WGTYBPLFGIVFAS-UHFFFAOYSA-M tetramethylammonium hydroxide Chemical compound [OH-].C[N+](C)(C)C WGTYBPLFGIVFAS-UHFFFAOYSA-M 0.000 claims description 6
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 claims description 5
- 229910001388 sodium aluminate Inorganic materials 0.000 claims description 5
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 4
- MFGOFGRYDNHJTA-UHFFFAOYSA-N 2-amino-1-(2-fluorophenyl)ethanol Chemical compound NCC(O)C1=CC=CC=C1F MFGOFGRYDNHJTA-UHFFFAOYSA-N 0.000 claims description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 3
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 3
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 claims description 3
- OKIZCWYLBDKLSU-UHFFFAOYSA-M N,N,N-Trimethylmethanaminium chloride Chemical compound [Cl-].C[N+](C)(C)C OKIZCWYLBDKLSU-UHFFFAOYSA-M 0.000 claims description 3
- 239000004115 Sodium Silicate Substances 0.000 claims description 3
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims description 3
- 239000000908 ammonium hydroxide Substances 0.000 claims description 3
- HUCVOHYBFXVBRW-UHFFFAOYSA-M caesium hydroxide Inorganic materials [OH-].[Cs+] HUCVOHYBFXVBRW-UHFFFAOYSA-M 0.000 claims description 3
- 229960001927 cetylpyridinium chloride Drugs 0.000 claims description 3
- YMKDRGPMQRFJGP-UHFFFAOYSA-M cetylpyridinium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCC[N+]1=CC=CC=C1 YMKDRGPMQRFJGP-UHFFFAOYSA-M 0.000 claims description 3
- 239000008119 colloidal silica Substances 0.000 claims description 3
- 229940104869 fluorosilicate Drugs 0.000 claims description 3
- 239000003517 fume Substances 0.000 claims description 3
- BPLYVSYSBPLDOA-GYOJGHLZSA-N n-[(2r,3r)-1,3-dihydroxyoctadecan-2-yl]tetracosanamide Chemical compound CCCCCCCCCCCCCCCCCCCCCCCC(=O)N[C@H](CO)[C@H](O)CCCCCCCCCCCCCCC BPLYVSYSBPLDOA-GYOJGHLZSA-N 0.000 claims description 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 3
- YMBCJWGVCUEGHA-UHFFFAOYSA-M tetraethylammonium chloride Chemical compound [Cl-].CC[N+](CC)(CC)CC YMBCJWGVCUEGHA-UHFFFAOYSA-M 0.000 claims description 3
- 229940073455 tetraethylammonium hydroxide Drugs 0.000 claims description 3
- -1 tetraethylammonium tetrafluoroborate Chemical compound 0.000 claims description 3
- LRGJRHZIDJQFCL-UHFFFAOYSA-M tetraethylazanium;hydroxide Chemical compound [OH-].CC[N+](CC)(CC)CC LRGJRHZIDJQFCL-UHFFFAOYSA-M 0.000 claims description 3
- LFQCEHFDDXELDD-UHFFFAOYSA-N tetramethyl orthosilicate Chemical compound CO[Si](OC)(OC)OC LFQCEHFDDXELDD-UHFFFAOYSA-N 0.000 claims description 3
- DDFYFBUWEBINLX-UHFFFAOYSA-M tetramethylammonium bromide Chemical compound [Br-].C[N+](C)(C)C DDFYFBUWEBINLX-UHFFFAOYSA-M 0.000 claims description 3
- 239000003637 basic solution Substances 0.000 claims description 2
- 229910052681 coesite Inorganic materials 0.000 claims description 2
- 229910052906 cristobalite Inorganic materials 0.000 claims description 2
- 238000001879 gelation Methods 0.000 claims description 2
- 235000012239 silicon dioxide Nutrition 0.000 claims description 2
- 229910052682 stishovite Inorganic materials 0.000 claims description 2
- 229910052905 tridymite Inorganic materials 0.000 claims description 2
- 239000013078 crystal Substances 0.000 description 42
- 239000003054 catalyst Substances 0.000 description 27
- 230000000052 comparative effect Effects 0.000 description 25
- 238000000034 method Methods 0.000 description 24
- 239000000725 suspension Substances 0.000 description 22
- 230000003197 catalytic effect Effects 0.000 description 20
- 238000001878 scanning electron micrograph Methods 0.000 description 19
- 239000002253 acid Substances 0.000 description 17
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 12
- 230000008569 process Effects 0.000 description 11
- 230000001965 increasing effect Effects 0.000 description 10
- 239000011148 porous material Substances 0.000 description 9
- 238000005259 measurement Methods 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 7
- 239000003463 adsorbent Substances 0.000 description 6
- 238000009826 distribution Methods 0.000 description 6
- 239000011164 primary particle Substances 0.000 description 6
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 6
- 239000011163 secondary particle Substances 0.000 description 6
- 238000004458 analytical method Methods 0.000 description 5
- 239000006185 dispersion Substances 0.000 description 5
- 238000011156 evaluation Methods 0.000 description 4
- 239000007783 nanoporous material Substances 0.000 description 4
- 239000003002 pH adjusting agent Substances 0.000 description 4
- 238000005033 Fourier transform infrared spectroscopy Methods 0.000 description 3
- 238000005481 NMR spectroscopy Methods 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 150000001768 cations Chemical class 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 238000004090 dissolution Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000011065 in-situ storage Methods 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- UWKQJZCTQGMHKD-UHFFFAOYSA-N 2,6-di-tert-butylpyridine Chemical compound CC(C)(C)C1=CC=CC(C(C)(C)C)=N1 UWKQJZCTQGMHKD-UHFFFAOYSA-N 0.000 description 2
- 238000005727 Friedel-Crafts reaction Methods 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 230000029936 alkylation Effects 0.000 description 2
- 238000005804 alkylation reaction Methods 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O ammonium group Chemical group [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000693 micelle Substances 0.000 description 2
- 239000012229 microporous material Substances 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 239000010970 precious metal Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 229910052723 transition metal Inorganic materials 0.000 description 2
- 150000003624 transition metals Chemical class 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000010933 acylation Effects 0.000 description 1
- 238000005917 acylation reaction Methods 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 238000005882 aldol condensation reaction Methods 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000012377 drug delivery Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012776 electronic material Substances 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 239000002638 heterogeneous catalyst Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000008204 material by function Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000013335 mesoporous material Substances 0.000 description 1
- 239000012621 metal-organic framework Substances 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000013110 organic ligand Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910052702 rhenium Inorganic materials 0.000 description 1
- WUAPFZMCVAUBPE-UHFFFAOYSA-N rhenium atom Chemical compound [Re] WUAPFZMCVAUBPE-UHFFFAOYSA-N 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- 230000035899 viability Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- 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
- C01B39/26—Mordenite type
- C01B39/265—Mordenite type using at least one organic template directing agent
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- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0006—Controlling or regulating processes
- B01J19/0013—Controlling the temperature of the process
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0086—Processes carried out with a view to control or to change the pH-value; Applications of buffer salts; Neutralisation reactions
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- 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
- B01J29/18—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the mordenite type
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/40—Catalysts, in general, characterised by their form or physical properties characterised by dimensions, e.g. grain size
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- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
- B01J35/61—Surface area
- B01J35/617—500-1000 m2/g
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- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
- B01J35/63—Pore volume
- B01J35/633—Pore volume less than 0.5 ml/g
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- B01J35/64—Pore diameter
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- B01J35/647—2-50 nm
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- B01J2219/00164—Controlling or regulating processes controlling the flow
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- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00177—Controlling or regulating processes controlling the pH
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00189—Controlling or regulating processes controlling the stirring velocity
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Inorganic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
- Catalysts (AREA)
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Description
水60mlにNaOH2.67gを完全に溶解させた後(pH約13)、沈殿シリカ17.96gを30分かけて徐々に投入した。投入中に500rpmで撹拌を行い、すべて投入した後は、同一の速度で1時間さらに撹拌して沈殿シリカ及びNaOHを完全に溶解させた。これにより、シリカ塩基性懸濁液を得た。
Zeolyst社から市販される製品名CBV21Aであるゼオライト(シリカ/アルミナの比が20であり、アンモニウムの形で提供され、比表面積が500m2/gである)試料を所定の倍率(1k、5k、10k、及び20k)でSEM撮影した。その結果を図5に示した。
図9から分かるように、実施例1によって製造されたモルデナイトゼオライトは90-100nmの粒子サイズを有する結晶が最も多い割合で分布し、その他にそれから±30nmの範囲内の粒子サイズを有する結晶からなることが分かる。これに対し、比較例のモルデナイトゼオライトは60~200nmの範囲の粒子サイズを有する結晶が優劣なく分布しており、粒子均一度が低いことが分かる。
実施例1、比較例1、及び比較例2のモルデナイトゼオライトを用いたMOR触媒を用いて触媒活性を評価した。
In-situ Pyridine吸着実験を介したFT-IR分析を用いて酸点を分析した。
固体アルミニウム核磁気共鳴分析を介して、実施例1、比較例1、及び比較例2の試料内に含まれる四面体構造と八面体構造の比を測定した。
実施例1と同様の方法及び条件でモルデナイトゼオライト合成組成物を製造し、ゲル化物を製造した。
構造誘導物質(TEABr)の使用量を下記表5の実施例5~7のようにそれぞれ調節したことを除いては、実施例1と同様の方法を介してモルデナイト結晶を形成した。さらに、各実施例5~7で得られたモルデナイト結晶に対して50kの倍率でSEM撮影し、これを図15に示した。
Claims (20)
- 水にpH調節物質及びシリカ前駆体を溶解してシリカ塩基性水溶液を提供する段階と、
水に構造誘導物質及びアルミナ前駆体を溶解して水溶液を提供する段階と、
水に界面活性剤を溶解して水溶液を提供する段階と、
前記シリカ塩基性水溶液と、前記構造誘導物質及びアルミナ前駆体を溶解した水溶液とを混合及び撹拌してシリカ-アルミナ水溶液を製造する段階と、
前記シリカ-アルミナ水溶液に界面活性剤水溶液を投入し、モルデナイトゼオライト合成組成物を製造する段階と、
前記モルデナイトゼオライト合成組成物をゲル化する段階と、
結晶化する段階と、を含み、
前記シリカ塩基性水溶液は、モルデナイトゼオライト合成組成物全体に含まれる水のモル数に対するシリカのモル数が0.01~0.1になるようにする含有量を有し、
水に界面活性剤を溶解する際に、水と界面活性剤を30~500rpmの撹拌速度で撹拌し、
前記モルデナイトゼオライト合成組成物の製造段階において、前記界面活性剤水溶液は10cc/min以下の速度でシリカ-アルミナ水溶液に投入し、
前記ゲル化は、20~60℃の温度で1~120時間撹拌して行い、
前記結晶化は、140~210℃の温度で反応させることにより行う、モルデナイトゼオライトの製造方法。 - 前記シリカ塩基性水溶液は、前記pH調節物質を水に投入して塩基性水溶液を製造し、前記塩基性水溶液にシリカ前駆体を投入及び溶解して得られる、請求項1に記載のモルデナイトゼオライトの製造方法。
- 前記pH調節物質は、塩基性水溶液のpHが12~14の範囲になるようにする含有量で投入する、請求項2に記載のモルデナイトゼオライトの製造方法。
- 前記pH調節物質は、SiO2に対するモル比が0.15~0.35になるようにする含有量で投入する、請求項2に記載のモルデナイトゼオライトの製造方法。
- 前記pH調節物質は、水酸化リチウム、水酸化ナトリウム、水酸化カリウム、水酸化ルビジウム、水酸化セシウム、及び水酸化アンモニウムからなる群より選択される少なくとも一つである、請求項1に記載のモルデナイトゼオライトの製造方法。
- 前記シリカ前駆体は、撹拌下で、0.1~1g/minの速度で投入される、請求項1に記載のモルデナイトゼオライトの製造方法。
- 前記シリカ前駆体は、ヒュームシリカ、沈殿(precipitated)シリカ、コロイダルシリカ、ナトリウムシリケート、テトラメチルオルソシリケート、テトラエチルオルソシリケート、ボロシリケート、及びフルオロシリケートからなる群より選択される少なくとも一つである、請求項1に記載のモルデナイトゼオライトの製造方法。
- 前記シリカ前駆体の投入後に、1~200時間撹拌を行ってシリカ前駆体を溶解する、請求項2に記載のモルデナイトゼオライトの製造方法。
- 前記構造誘導物質及びアルミナ前駆体を溶解した水溶液は、構造誘導物質及びアルミナ前駆体を水に投入及び撹拌して製造する、請求項1に記載のモルデナイトゼオライトの製造方法。
- 前記構造誘導物質及びアルミナ前駆体は、個別又は同時に水に投入し、且つ1~10g/minの速度で投入する、請求項9に記載のモルデナイトゼオライトの製造方法。
- 前記アルミナ前駆体は、アルミナに対するシリカのモル比(SiO2/Al2O3)が5~50の範囲になるようにする含有量で投入される、請求項1に記載のモルデナイトゼオライトの製造方法。
- 前記アルミナ前駆体は、アルミン酸ナトリウム、硫酸ナトリウムアルミニウム、及びアルミニウムからなる群より選択される少なくとも一つである、請求項1に記載のモルデナイトゼオライトの製造方法。
- 前記構造誘導物質は、シリカ1モルに対して1/100~1/10モルの範囲になるようにする含有量で投入される、請求項1に記載のモルデナイトゼオライトの製造方法。
- 前記構造誘導物質は、テトラメチルアンモニウムブロミド、テトラメチルアンモニウムクロライド、テトラメチルアンモニウムヒドロキシド、テトラエチルアンモニウムブロミド、テトラエチルアンモニウムクロライド、テトラエチルアンモニウムヒドロキシド、及びテトラエチルアンモニウムテトラフルオロボレートからなる群より選択される少なくとも一つである、請求項1に記載のモルデナイトゼオライトの製造方法。
- 前記界面活性剤水溶液は、撹拌下で、界面活性剤を20℃~80℃の温度の水に投入して製造する、請求項1に記載のモルデナイトゼオライトの製造方法。
- 前記界面活性剤は、界面活性剤水溶液中に0.01~0.1モルの濃度になるように投入する、請求項1に記載のモルデナイトゼオライトの製造方法。
- 前記界面活性剤は、セチルトリメチルアンモニウムブロミド、セチルトリメチルアンモニウムクロライド、及びセチルピリジニウムクロライドからなる群より選択される少なくとも一つである、請求項1に記載のモルデナイトゼオライトの製造方法。
- 前記混合は、シリカ塩基性水溶液に構造誘導物質及びアルミナ前駆体を溶解した水溶液を1~10cc/minの速度で投入して行う、請求項1に記載のモルデナイトゼオライトの製造方法。
- 前記混合は、構造誘導物質及びアルミナ前駆体を溶解した水溶液の投入完了後に撹拌を1~72時間さらに行う、請求項18に記載のモルデナイトゼオライトの製造方法。
- 前記結晶化は、シードの存在下で行われる、請求項1~請求項19のいずれか一項に記載のモルデナイトゼオライトの製造方法。
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