JP5139622B2 - 触媒担体 - Google Patents
触媒担体 Download PDFInfo
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- JP5139622B2 JP5139622B2 JP2003570979A JP2003570979A JP5139622B2 JP 5139622 B2 JP5139622 B2 JP 5139622B2 JP 2003570979 A JP2003570979 A JP 2003570979A JP 2003570979 A JP2003570979 A JP 2003570979A JP 5139622 B2 JP5139622 B2 JP 5139622B2
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- alumina
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- 239000003054 catalyst Substances 0.000 title claims description 42
- 239000011148 porous material Substances 0.000 claims description 64
- 239000002245 particle Substances 0.000 claims description 46
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 33
- 239000000203 mixture Substances 0.000 claims description 33
- 239000000463 material Substances 0.000 claims description 24
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 17
- 238000001125 extrusion Methods 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 150000001336 alkenes Chemical class 0.000 claims description 11
- 239000000377 silicon dioxide Substances 0.000 claims description 11
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims description 10
- 238000010521 absorption reaction Methods 0.000 claims description 9
- 239000008188 pellet Substances 0.000 claims description 9
- 238000006735 epoxidation reaction Methods 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 8
- -1 amorphous silica compound Chemical class 0.000 claims description 7
- 229910001593 boehmite Inorganic materials 0.000 claims description 6
- FAHBNUUHRFUEAI-UHFFFAOYSA-M hydroxidooxidoaluminium Chemical compound O[Al]=O FAHBNUUHRFUEAI-UHFFFAOYSA-M 0.000 claims description 6
- 150000001339 alkali metal compounds Chemical class 0.000 claims description 5
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 4
- 239000005977 Ethylene Substances 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 4
- 229910000272 alkali metal oxide Inorganic materials 0.000 claims description 3
- 238000010304 firing Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims 1
- 239000004615 ingredient Substances 0.000 claims 1
- 238000005245 sintering Methods 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 7
- 239000007789 gas Substances 0.000 description 7
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 7
- 229910052753 mercury Inorganic materials 0.000 description 7
- 239000000969 carrier Substances 0.000 description 6
- 238000009826 distribution Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 229910052783 alkali metal Inorganic materials 0.000 description 3
- 150000001340 alkali metals Chemical class 0.000 description 3
- 238000001354 calcination Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 241000758789 Juglans Species 0.000 description 2
- 235000009496 Juglans regia Nutrition 0.000 description 2
- 239000004264 Petrolatum Substances 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- HRYZWHHZPQKTII-UHFFFAOYSA-N chloroethane Chemical compound CCCl HRYZWHHZPQKTII-UHFFFAOYSA-N 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 2
- 229960003750 ethyl chloride Drugs 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 229910001679 gibbsite Inorganic materials 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 229940066842 petrolatum Drugs 0.000 description 2
- 235000019271 petrolatum Nutrition 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 239000001632 sodium acetate Substances 0.000 description 2
- 235000017281 sodium acetate Nutrition 0.000 description 2
- 159000000000 sodium salts Chemical class 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 235000020234 walnut Nutrition 0.000 description 2
- 238000004438 BET method Methods 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910001491 alkali aluminosilicate Inorganic materials 0.000 description 1
- 229910052910 alkali metal silicate Inorganic materials 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 229910001680 bayerite Inorganic materials 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000002902 bimodal effect Effects 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000004581 coalescence Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229910002026 crystalline silica Inorganic materials 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 229910001648 diaspore Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000011146 organic particle Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 229910001948 sodium oxide Inorganic materials 0.000 description 1
- 238000000527 sonication Methods 0.000 description 1
- 238000001694 spray drying Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/0009—Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
- B01J37/0018—Addition of a binding agent or of material, later completely removed among others as result of heat treatment, leaching or washing,(e.g. forming of pores; protective layer, desintegrating by heat)
-
- 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
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/02—Boron or aluminium; Oxides or hydroxides thereof
- B01J21/04—Alumina
-
- 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
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/12—Silica and alumina
-
- 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/66—Silver or gold
-
- 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
- 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
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
- C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D301/00—Preparation of oxiranes
- C07D301/02—Synthesis of the oxirane ring
- C07D301/03—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds
- C07D301/04—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds with air or molecular oxygen
- C07D301/08—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds with air or molecular oxygen in the gaseous phase
- C07D301/10—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds with air or molecular oxygen in the gaseous phase with catalysts containing silver or gold
-
- 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
- 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
- B01J35/612—Surface area less than 10 m2/g
-
- 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
- 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
- B01J35/63—Pore volume
- B01J35/633—Pore volume less than 0.5 ml/g
-
- 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
- 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
- B01J35/63—Pore volume
- B01J35/635—0.5-1.0 ml/g
-
- 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
- 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
- B01J35/66—Pore distribution
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/12—Surface area
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/14—Pore volume
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/16—Pore diameter
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/16—Pore diameter
- C01P2006/17—Pore diameter distribution
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/90—Other properties not specified above
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Catalysts (AREA)
- Epoxy Compounds (AREA)
Description
また、直感的ではあるが、担体の表面積が大きくなればなるほど、触媒の沈着に有効な面積が大きくなり、そのために担体上における触媒の沈着をより効果的に行なうことができるとも考察できる。しかしながら、いつもその通りであるとは限らないことが判明しており、最近の担体/触媒の組み合わせ(結合体)の場合、1.0m2/g未満の表面積をもった担体を使用する傾向にある。なぜならば、そのようにすることによって、商業的な反応器内において、それらの物理的一体性を損なうことなく、長期間の使用に耐えるのに必要なクラッシュ強度を維持する一方で、許容し得る活性及び選択性を維持できるからである。さらに加えて、判明したところによると、表面積が大きい担体は、高い活性を有することがしばしばであるけれども、選択性に劣っている。
50〜90重量%の、平均粒径(d50)が10〜90μmである第1の粒子状αアルミナ、
αアルミナの全重量を基準にして10〜50重量%の、平均粒径(d50)が2〜6μmである第2の粒子状αアルミナ、
2〜5重量%のアルミナ水和物、
0.2〜0.8%の、シリカとして測定される無定形シリカ化合物、及び
0.05〜0.3%の、アルカリ金属酸化物として測定されるアルカリ金属化合物
(ここで、%はすべて、該混合物のαアルミナの含有量の合計を基準としている)を調製することを包含する。次いで、この混合物を粒子の形に成形し、そして得られた粒子を1250〜1470℃の温度で焼成して担体を形成する。
a)50〜90重量%の、平均粒径(d50)が10〜90μm、好ましくは10〜60μm、最も好ましくは20〜40μmである第1の粒子状αアルミナ、
b)αアルミナの全重量を基準にして10〜50重量%の、平均粒径(d50)が2.0〜6.0μmである第2の粒子状αアルミナ、
c)2〜5重量%のアルミナ水和物、
d)0.2〜0.8%の、シリカとして測定される無定形シリカ化合物、及び
e)0.05〜0.3%の、アルカリ金属酸化物として測定されるアルカリ金属化合物
(ここで、%はすべて、該混合物のαアルミナの含有量の合計を基準としている)を調製し、次いで
この混合物を粒子に成形し、そして該粒子を1250〜1470℃の温度で焼成して担体を形成すること
を含んでいる。
上記したように、本発明の担体は、当業者に理解されているような多数の方法によって製造することができる。好ましい担体(INV-1)の製造では、次のような成分からなる混合物を調製する。なお、記載の割合はすべて、焼成後の担体中に存在する成分として、重量基準で表したものである。
2. 29%の、平均粒径(d50)が3μmであるαアルミナ、
3. 3%のベーマイト、
4. 0.5%のシリカ(アンモニアで安定化したシリカゾルの形で)、及び
5. 0.1%の酸化ナトリウム(酢酸ナトリウムの形で)。
次いで、比較用の担体を本発明のINV-1担体と対比して評価した。これらの担体を使用して、米国特許第5,380,697号に一般的に記載される方法を使用して酸化エチレン触媒を調製した。次いで、本発明の担体の性能を同一条件下において比較用の担体に対比して評価した。
Claims (17)
- オレフィンエポキシ化触媒の担体であって、
前記担体が、該担体の質量を100としたとき、少なくとも95質量%の、表面積が1.6〜2.6m2/gであり、かつ吸水率が35〜55%であるαアルミナと、0.2質量%から0.8質量%までの無定形シリカ化合物とを含み、前記担体に含まれる細孔が、細孔容積の少なくとも70%が0.2〜10μmの細孔直径を有する細孔の形をしており、かつ0.2〜10μmの直径を有する細孔が前記担体の少なくとも0.27mL/gの容積を占めるように分布せしめられており、かつ前記担体の細孔容積が0.56mL/gまでであることを特徴とする触媒担体。 - 0.2μm未満の直径を有する細孔が、全細孔容積の0〜10%に相当することをさらに特徴とする請求項1に記載の触媒担体。
- 細孔容積が少なくとも0.35mL/gであることをさらに特徴とする請求項1又は2に記載の触媒担体。
- 表面積が少なくとも2.0m2/gであることをさらに特徴とする請求項1〜3のいずれか1項に記載の触媒担体。
- 表面積が2.2m2/g未満であることをさらに特徴とする請求項1〜4のいずれか1項に記載の触媒担体。
- 10μmを上回る細孔直径を有する細孔が、全細孔容積の20%未満に相当することをさらに特徴とする請求項1〜5のいずれか1項に記載の触媒担体。
- 10μmを上回る細孔直径を有する細孔が、全細孔容積の15%未満に相当することをさらに特徴とする請求項6に記載の触媒担体。
- 細孔容積の少なくとも80%が、0.2〜10μmの細孔直径を有する細孔の形をしていることをさらに特徴とする請求項1〜7のいずれか1項に記載の触媒担体。
- 0.2〜10μmの細孔直径を有する細孔が、前記担体の少なくとも0.30mL/gの容積を占めることをさらに特徴とする請求項1〜8のいずれか1項に記載の触媒担体。
- 0.2〜10μmの細孔直径を有する細孔が、前記担体の0.56mL/gまでの容積を占めることをさらに特徴とする請求項1〜9のいずれか1項に記載の触媒担体。
- 請求項1に記載のオレフィンエポキシ化触媒の担体を製造する方法であって、
下記の成分を含む混合物:
a)50〜90質量%の、平均粒径(d50)が10〜90μmである第1の粒子状αアルミナ、
b)αアルミナの全質量を基準にして10〜50質量%の、平均粒径(d50)が2〜6μmである第2の粒子状αアルミナ、
c)2〜5質量%のアルミナ水和物、
d)0.2〜0.8質量%の、シリカとして測定される無定形シリカ化合物、及び
e)0.05〜0.3質量%の、アルカリ金属酸化物として測定されるアルカリ金属化合物
(ここで、質量%はすべて、該混合物のαアルミナの含有量の合計を基準としている)を調製し、次いで
この混合物を粒子に成形し、そして該粒子を1250〜1470℃の温度で焼成して前記担体を形成すること
を特徴とする触媒担体の製造方法。 - 前記アルミナ水和物がベーマイトを含むことをさらに特徴とする請求項11に記載の方法。
- 前記混合物が、20質量%までの有機焼損材料を含むことをさらに特徴とする請求項11又は12に記載の方法。
- 前記混合物に、該混合物の質量を基準にして10〜25質量%の押出し成形助剤及び有機焼損材料及び十分量の水を配合して前記混合物を押出し成形可能となし、次いで前記混合物を押出し成形してペレットを形成し、その後、前記ペレットを乾燥及び焼成して前記担体を形成することをさらに特徴とする請求項11〜13のいずれか1項に記載の方法。
- 前記第1の粒子状アルミナが、少なくとも20μmの平均粒径(d50)を有していることをさらに特徴とする請求項11〜14のいずれか1項に記載の方法。
- 前記第1の粒子状アルミナが、40μmまでの平均粒径(d50)を有していることをさらに特徴とする請求項15に記載の方法。
- 前記オレフィンがエチレンを含むことをさらに特徴とする請求項11〜16のいずれか1項に記載の方法。
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- 2003-02-25 JP JP2003570979A patent/JP5139622B2/ja not_active Expired - Lifetime
- 2003-02-25 CA CA002477067A patent/CA2477067C/en not_active Expired - Lifetime
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2004
- 2004-03-08 US US10/795,627 patent/US20040170556A1/en not_active Abandoned
- 2004-08-24 IN IN1883CH2004 patent/IN2004CH01883A/en unknown
- 2004-12-13 US US11/010,488 patent/US20050096219A1/en not_active Abandoned
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2008
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Also Published As
Publication number | Publication date |
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EP3254756A1 (en) | 2017-12-13 |
CN1646219A (zh) | 2005-07-27 |
BR0307963B1 (pt) | 2013-07-09 |
KR100591031B1 (ko) | 2006-06-22 |
US20030162655A1 (en) | 2003-08-28 |
US20050096219A1 (en) | 2005-05-05 |
BR0307963A (pt) | 2004-12-21 |
CN100531897C (zh) | 2009-08-26 |
WO2003072244A1 (en) | 2003-09-04 |
CA2477067C (en) | 2007-07-17 |
US20040170556A1 (en) | 2004-09-02 |
US6831037B2 (en) | 2004-12-14 |
JP2005518275A (ja) | 2005-06-23 |
MXPA04008258A (es) | 2005-07-13 |
JP2009072787A (ja) | 2009-04-09 |
RU2004126091A (ru) | 2005-05-27 |
IN2004CH01883A (ja) | 2006-06-23 |
TWI228433B (en) | 2005-03-01 |
EP1478458A1 (en) | 2004-11-24 |
CA2477067A1 (en) | 2003-09-04 |
MY130801A (en) | 2007-07-31 |
TW200400083A (en) | 2004-01-01 |
AU2003216412A1 (en) | 2003-09-09 |
RU2282497C2 (ru) | 2006-08-27 |
KR20040095231A (ko) | 2004-11-12 |
EP1478458B1 (en) | 2017-04-05 |
DK1478458T3 (en) | 2017-07-24 |
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