TW200505567A - Ethylene oxide catalyst - Google Patents
Ethylene oxide catalyst Download PDFInfo
- Publication number
- TW200505567A TW200505567A TW93111279A TW93111279A TW200505567A TW 200505567 A TW200505567 A TW 200505567A TW 93111279 A TW93111279 A TW 93111279A TW 93111279 A TW93111279 A TW 93111279A TW 200505567 A TW200505567 A TW 200505567A
- Authority
- TW
- Taiwan
- Prior art keywords
- solution
- catalyst
- carrier
- silver
- support
- Prior art date
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- 239000003054 catalyst Substances 0.000 title claims description 52
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 title claims description 9
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 29
- 229910052709 silver Inorganic materials 0.000 claims description 29
- 239000004332 silver Substances 0.000 claims description 29
- 238000000034 method Methods 0.000 claims description 28
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 239000003513 alkali Substances 0.000 claims description 4
- 239000007864 aqueous solution Substances 0.000 claims description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims 1
- 229910052782 aluminium Inorganic materials 0.000 claims 1
- 239000012085 test solution Substances 0.000 claims 1
- 239000000243 solution Substances 0.000 description 55
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 10
- 238000005470 impregnation Methods 0.000 description 9
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical group [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 8
- 229910052744 lithium Inorganic materials 0.000 description 8
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 description 8
- 239000000203 mixture Substances 0.000 description 8
- 239000007788 liquid Substances 0.000 description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 6
- 239000005977 Ethylene Substances 0.000 description 6
- 238000001354 calcination Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- 229910052708 sodium Inorganic materials 0.000 description 6
- 239000011734 sodium Substances 0.000 description 6
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 5
- 229910052783 alkali metal Inorganic materials 0.000 description 5
- 150000001340 alkali metals Chemical class 0.000 description 5
- 238000002309 gasification Methods 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 239000011148 porous material Substances 0.000 description 5
- 229910052717 sulfur Inorganic materials 0.000 description 5
- 239000011593 sulfur Substances 0.000 description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 4
- 150000001412 amines Chemical class 0.000 description 4
- NDVLTYZPCACLMA-UHFFFAOYSA-N silver oxide Chemical compound [O-2].[Ag+].[Ag+] NDVLTYZPCACLMA-UHFFFAOYSA-N 0.000 description 4
- 239000011550 stock solution Substances 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 3
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- GGCZERPQGJTIQP-UHFFFAOYSA-N sodium;9,10-dioxoanthracene-2-sulfonic acid Chemical compound [Na+].C1=CC=C2C(=O)C3=CC(S(=O)(=O)O)=CC=C3C(=O)C2=C1 GGCZERPQGJTIQP-UHFFFAOYSA-N 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000000908 ammonium hydroxide Substances 0.000 description 2
- 229910052792 caesium Inorganic materials 0.000 description 2
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 description 2
- 229910052808 lithium carbonate Inorganic materials 0.000 description 2
- IIPYXGDZVMZOAP-UHFFFAOYSA-N lithium nitrate Chemical compound [Li+].[O-][N+]([O-])=O IIPYXGDZVMZOAP-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 238000002203 pretreatment Methods 0.000 description 2
- 229910001923 silver oxide Inorganic materials 0.000 description 2
- MFGOFGRYDNHJTA-UHFFFAOYSA-N 2-amino-1-(2-fluorophenyl)ethanol Chemical compound NCC(O)C1=CC=CC=C1F MFGOFGRYDNHJTA-UHFFFAOYSA-N 0.000 description 1
- DDFHBQSCUXNBSA-UHFFFAOYSA-N 5-(5-carboxythiophen-2-yl)thiophene-2-carboxylic acid Chemical compound S1C(C(=O)O)=CC=C1C1=CC=C(C(O)=O)S1 DDFHBQSCUXNBSA-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 241001379910 Ephemera danica Species 0.000 description 1
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 1
- DHXVGJBLRPWPCS-UHFFFAOYSA-N Tetrahydropyran Chemical compound C1CCOCC1 DHXVGJBLRPWPCS-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 229910001515 alkali metal fluoride Inorganic materials 0.000 description 1
- 150000001447 alkali salts Chemical class 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 150000005524 benzylchlorides Chemical class 0.000 description 1
- 238000003339 best practice Methods 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- HUCVOHYBFXVBRW-UHFFFAOYSA-M caesium hydroxide Inorganic materials [OH-].[Cs+] HUCVOHYBFXVBRW-UHFFFAOYSA-M 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003426 co-catalyst Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000004320 controlled atmosphere Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 230000002939 deleterious effect Effects 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 125000001475 halogen functional group Chemical group 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 150000002642 lithium compounds Chemical class 0.000 description 1
- XKPJKVVZOOEMPK-UHFFFAOYSA-M lithium;formate Chemical compound [Li+].[O-]C=O XKPJKVVZOOEMPK-UHFFFAOYSA-M 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000000750 progressive effect Effects 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
- 239000012266 salt solution Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- XNGYKPINNDWGGF-UHFFFAOYSA-L silver oxalate Chemical compound [Ag+].[Ag+].[O-]C(=O)C([O-])=O XNGYKPINNDWGGF-UHFFFAOYSA-L 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 150000003463 sulfur Chemical class 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
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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
- 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
- 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
- B01J23/48—Silver or gold
- B01J23/50—Silver
-
- 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
-
- 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
- B01J37/02—Impregnation, coating or precipitation
- B01J37/0201—Impregnation
- B01J37/0203—Impregnation the impregnation liquid containing organic compounds
-
- 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
- B01J37/02—Impregnation, coating or precipitation
- B01J37/0201—Impregnation
- B01J37/0207—Pretreatment of the support
-
- 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
- B01J37/06—Washing
-
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Catalysts (AREA)
- Epoxy Compounds (AREA)
Description
200505567 九、發明說明: 【發明所屬之技術領域】 本發明係關於一種將乙烯氧化成環氧乙烷之銀催化劑, 及尤其關於製備具有改良的特性之催化劑擔體或載體使得 包含該等載體之催化劑具有增強之效用。 【先前技術】 2002年4月8曰申請之專利申請案第1〇/118,192號提供了 對先前技術之综合描述。2〇〇2年4月8日申請之所述第 1〇/118,192號的揭示全文倂入本文。 在所述同在申請中之案件中,描述了其中在預處理程序 中自擔體中移除了至少25%之表面的鈉且部分經高達 ppm之鋰所取代之程序。適宜用鹼式鹽溶液(例如碳酸鋰) 來預處理擔體。 【發明内容】 現已舍ί見’在整個預處理過程巾於高阳下進行擔體預處 理可的情況下生成優良之催化劑。該阳值應高於8,且較佳 係高於9。 在預處理過程中保持ρΗ值在約10_13〇範圍内之恒定值 的it况下可達成取佳效果。本發明之—特點係在擔體預處 理過程中向處理溶液添加驗以保持所要之高pH值。 【實施方式】 如上所述,本發明係關於對同在申請中之2〇〇2年4月8曰 申請之中請案第1G/118,192號中所描述的—般程序之改 良’其揭示内容倂人本文。根據該程序,i少25%之擔體 92551.doc 200505567 表面之納離子可被移除且經高達1G ppm之鐘離子所取代。 現根據本發明,在8以上(較佳為9以上,且最佳為於i(M3 〇 範圍内)的pH值下進行擔體預處理。在一尤其較佳之實施方 法中,在擔體預處理過程中,藉由向溶液中持續或間歇添 加鹼以將處理用溶液之PH值保持在1(Μ3·〇範圍内。 根據本發明,在用鹼性處理用水溶液(例如含有鋰化合 物,如氯化鋰、碳酸鋰、硝酸鋰、甲酸鋰、氫氧化鋰及其 類似物之溶液)進行擔體(諸如氧化鋁)之預處理過程中,將 接觸擔體的溶液之pH值調節至高於8(較佳為高於9,且最佳 為在10-13.0範圍内)之值。在處理期間中當擔體與溶液接觸 時,週期性地或持續地添加額外之鹼以保持溶液pH值在所 要之範圍内。最佳係在整個擔體處理中以足以將處理用溶 液保持於恒定pH值之速率來添加額外之驗。 根據本發明處理過的較佳之擔體係主要含有…氧化鋁之 擔體’特別係含有高達約15重量%之;ε夕石之擔體。尤其較 佳之擔體具有約0.1-1.0 cc/g及較佳約〇 2_〇 7 cc/g之孔隙 度。較佳之擔體亦具有相對低之表面積,即藉由bet方法 測定為約〇.2_2.〇1112化,較佳為〇.4-1.0 11124及最佳為〇.5-1.3 2 m /g。參見 J· Am. Chem· Soc·,60, 3098-16(1938)。藉由該 水銀孔隙度儀的方法來測定孔隙度;參見Drake&Ritter,Ind.
Eng· Chem· Anal· Ed_,17, 787(1945)。自表面積及視孔隙度 里測來測定孔隙及孔徑分佈。 為用於商用環氧乙烷生產應用中,理想地使擔體成形為 規則形狀的顆粒、小球、環等等。擔體微粒理想地係可具 92551.doc 200505567 有在3-12 mm範圍内及較佳4-10 mm範圍内之同等直徑,通 常該等同等直徑與置放催化劑的管子之内直徑可相容。同 等直徑係當施用該等擔體微粒時具有相同的外表面(意即 忽略了在微粒之孔隙中的表面)與體積之比率的小球直徑。 根據本發明所製備的使用了該等經處理之擔體的較佳催 化劑含有高達約3 0重量%之銀(以金屬表示)沈積於表面上 且遍及該多孔耐熔擔體之孔隙。占總催化劑之高於2〇重量 °/〇的銀含量係有效的,但會造成催化劑不必要的昂貴。基 於全部催化劑重量之約5-20%的銀含量(以金屬表示)為較 佳,而8-15%之銀含量則尤其較佳。 除銀之外,根據本發明所製備的催化劑亦含有助催化 劑’尤其為臨界量之鹼金屬助催化劑組份。鹼金屬助催化 劑之量以基於催化劑之重量的鹼金屬表示不多於3〇〇〇 Ppm ;該催化劑較佳含有基於該催化劑之重量為4〇〇_15〇〇 ppm、更佳為5〇〇_ 1200 ppm之鹼金屬。儘管亦可使用鋰、鉀、 物及其混合物,然而較佳之鹼金屬係铯。 根據本發明之實施方法視情況亦可提供硫作為促催化劑 組份。可將硫組份添加至催化劑擔體的浸透用溶液中成為 硫酸鹽,舉例而言,硫酸鉋、硫酸銨及其類似物。美國專 利第4,766,105號描述了該硫促進劑之使用,例如第1〇欄, 53-60列,且此揭示内容以引用的方式倂入本文中。使用 時,硫的量(以元素表示)以基於催化劑之重量在以重量計 5-300 ppm的量内為較佳。 催化劑亦可含有以元素表示之基於催化劑重量以重量計 92551.doc 200505567 為10 — 300 ppm之量的氟促進劑。可使用氟化銨、鹼金屬氟 化物及其類似物。 較佳地,藉由將擔體浸沒於銀/胺浸潰溶液中或藉由初始 潤濕技術(incipient wetness teehnique)可將銀添加至擔體。口 藉由吸收、毛細管作用及/或真空化來使含銀液體滲透入擔 體之孔隙中。可使用有或無中間乾燥之單一浸潰法或一系 列浸潰法,此部分取決於溶液中銀鹽之濃度。為得到具有 在較佳範圍内的銀含量之催化劑,合適的浸潰溶液通常含 有5-50 4量%之銀(以金屬表示)。所使用的精確濃度尤豆取 決於所要之銀含量、擔體之性質、液體之黏度及銀化:物 之溶解度。 可以-習知方式來達成經預處理之載體之浸潰。將載體 置放於銀溶液巾直至擔體將所有溶液吸收。最佳地,將乾 燥的經預處理之載體置放於真空下且接著引人銀溶液。僅 當所有載體顆粒被塗布上該溶液或當液體含量^以覆蓋所 用之載體之暈時移除真空。此可確保該載體之所有孔隙被 浸潰溶液填滿。 如已指示之諸浸潰溶液之特徵係銀/胺溶液,較佳諸如美 國專利第3,7〇2,259號之充分描述,其揭示内容以引用的方 式倂入本文中。 在浸潰後’分離任何過量之浸潰溶液錢燒或激活經銀 及促催化劑浸潰之擔體。在本發明之最佳實施方法中,如 1996年4月2日授權之共同讓渡的美國專利第5,5〇4,G52號及 1996年1月16日申請之同在申請中之申請案第〇8/587,281號 92551.doc 200505567 中描述般進行煅燒,其揭示内容以引用的方式倂入本文 中。藉由較佳以一漸進速率將經浸潰之擔體加熱至 200-500°C範圍内之溫度,歷時足夠的時間以將所包含之銀 鹽轉變為金屬銀並分解該等有機材料及將其作為揮發物加 以移除來完成煅燒。 將經浸潰之擔體視情況保持於惰性氣氛中,而在3〇〇它以 上及更高溫度下大塊之銀將吸入相當大量的氧氣,而此將 對催化劑之特徵產生有害影響。本發明中視情況使用之惰 性氣氣係基本上不含氧氣之氣氛。 煅燒的不太理想之替代方法係在不超過3〇(rc之溫度(較 佳為不超過27〇。〇於空氣流中加熱催化劑。 根據本發明所製備之催化劑具有改良的效能,尤其是穩 定性,以用來藉由用分子氧將乙烯氣相氧化而生成環氧乙 烷。這些通常涉及約150°C至400°C(通常約200°C至300。〇之 反應溫度,且自0.5至35巴範圍之反應壓力。反應饋入混合 物含有0.5至20%之乙烯及3至15。/。之氧氣,其餘包含相對惰 性之材料,包括如氮氣、二氧化碳、曱烷、乙烷、氬氣及 其類似物之物f。每次傳經該催化劑,通常僅有一部分乙 烯發生反應,而在分離出所要之環氧乙烷產物且移除了適 當之淨化氣流及二氧化碳以防止不受控制地累積惰性及/ 或副產物之後,未反應之材料再返回至氧化反應器中。 下述實例說明瞭本發明。 實例-1 a·銀/胺複合物之儲備溶液的製備: 使用下列組份來製備銀溶液 92551.doc 200505567 (份數係以重量計) 氧化銀-834份 草酸-442份 去離子水-1000份 乙二胺-500份 於室溫下將氧化銀與水混合,隨後逐漸添加草酸。攪拌 混合物1 5分鐘及在此刻,氧化銀之黑色懸浮液的顏色已變 為草酸銀之灰/褐顏色。過濾該混合物及用3升去離子水來 洗滌固體。 將試樣置放於冰浴中並加以攪拌,同時緩慢加入乙二胺 及水(作為66%/34%之混合物)以保持反應溫度低於33°C。在 添加完所有乙二胺/水混合物之後,於室溫下過濾該溶液。 將澄清之濾出液用作製備催化劑之銀/胺之儲備溶液。 b. 添加促催化劑: 用乙二胺/水之66/34混合物來稀釋澄清之儲備溶液。此 外,向經稀釋之銀溶液中加入氫氧化鉋及硫酸氫銨以製備 含有11%之銀、40 ppm之硫、及800 ppm之铯的催化劑。 c. 催化劑浸潰: 將如本文描述般經預處理過的載體之150 g試樣置放於 一加壓容器中,且接著使其曝露至真空直至壓力減至50毫 米汞柱。在仍處於真空下之同時,向燒瓶中引入200毫升經 調節過之銀/促催化劑溶液。允許該容器之壓力升至大氣 壓,並搖動其内含物幾分鐘。自溶液中分離出催化劑並現 準備煅燒。 92551.doc -10- 200505567 d·催化劑煅燒: 藉由將催化劑加熱至銀鹽之分解溫度而引起煅燒,銀之 沈積。此係藉由在受控氣氛中具有若干加熱區域的熔爐中 加熱而達成。在周圍溫度下將催化劑裝載於進入該熔爐之 移動帶上。隨著該催化劑自一個區域傳至下一區域,溫度 逐漸升同。當催化劑經過了七個加熱區域時,溫度將升高 至咼達400°C。在該等加熱區域之後,移動帶傳經一冷卻區 域,其將催化劑逐漸冷卻至低於1〇〇。(:之溫度。在該熔爐中 之總停留時間係22分鐘。 e.催化劑測試: 在經溶融鹽浴加熱的不銹鋼管中測試催化劑。使含有 15%之乙烯、7%之氧氣、及78%惰性的主要為氮氣及二氧 化碳之氣體混合物以300 p.s.Lg·經過該催化劑。最初調節該 反應溫度以獲得每立方米催化劑每小時產生16〇千克環氧 乙烷之產率。以此低工作速率測試約一星期之後,升高兮 反應溫度以將環氧乙烷之產率提高至每立方米催化劑每小 時產生330千克。 所使用之載艘係基本上由氧化銘組成之低鈉載體且具 有下述規格: '
92551.doc -11 - 200505567 實例-2 在65C PH=11下於水中用〇 〇2 N之氯化鐘溶液處理載體 A 〇 步驟1.精由添加所需量的氫氧化鐘來將處理溶液(G.02 N氯 化鐘水溶液)之pH值調節至指定值。將載體之5〇〇 g試樣置 放於-加塵容器中及接著將其曝露至真空直至屢力減至% 宅米汞柱。向燒瓶中引入15〇〇毫升的氯化鐘處理溶液,同 時仍使其處於真空下。#㈣完全部溶液後,允許該容器 之壓力升至大氣壓。接著將該載體及液體轉移至一經封套 之添加漏斗中且允轴溶液循環流過該㈣床。該溶液以 每小時約5升之速率不斷流入該漏斗之頂部。亦以相同速率 自該漏斗底部排液,且將漏斗内之溶液水平保持在離該載 體之水平以上約-英时。允許熱的液體循環流過該封套以 將將其溫度保持於65t。處理容器亦具有含有n氣氧化 鐘溶液之滴定管及pH計。將PH計之探測器浸沒於處理漏斗 之頂部。按需要加入幾滴氯氧化鐘溶液以保持循環溶液之 pH值在指定值11G。為將溶液阳於保持此指定值所添加之 〇.1 N氫氧化链溶液的總量係2〇毫升。在此步驟結束,持續 了 30为鐘,排盡溶液,稱量,並保存用於分析。 步驟2·藉由加入-批1500毫升新鮮氣化鐘溶液來重複步驟 1中之處理’且繼續處理額外30分鐘。重複此步驟,用於始 =五個循環的鐘處理。在不同循環中用來保持目標阳麵 而之氫氧化鋰的量被列於下表: 92551.doc -12- 200505567 表1 循環# 1 2 3 4 5 所添加之0.1N氫氧化經之毫升 20 10 10 10 10 步驟3.在最後的循環後,於室溫下用1500 ml水來洗滌該載 體30分鐘。未調節水洗滌步驟之pH值。重複水洗滌一次, 且隨後排盡液體並於150°C下乾燥該載體5小時。 下表總結了該載體之鋰處理之結果。 表2 實例 所使用之溶液 pH 處理溫度它 移除之納PPm 1C比較實例 載體未經處理 2 0.02N氯化鋰 11 65 67 如實例1所述,該載體用於催化劑之製備,且於高工作速 率330下測試該催化劑。未經處理之載體亦用來製備催化 劑,且以相同工作速率來測試該催化劑。催化劑之測試已 證明經載體處理後所製得的催化劑之穩定性得以改良,表3。 表3 於工作速率330Π F,催化劑之選擇性 實例 200 hr之 選擇性. 300 hr之 選擇性 400 hr 之 選擇性 500 hr之 選擇性 1C 80.8 80.3 80 79.2 2 80.0 80.0 80.3 80.3
比較實例B 設計此實例用以說明α-氧化鋁表面緩衝該處理溶液的pH 值之自然趨勢。 在pH值11下於水中用3000毫升氫氧化銨溶液來處理1000 克載體A。除了在載體處理過程中未調節溶液pH值之外, 92551.doc -13- 200505567 該程序之細節與實例2步驟1相同。如表B所示,溶液顯示了 其pH值的持續下降。
表B 時間(小時) 起始 0.25 1 2 PH 11.04 10.18 9.81 9.64 實例3-7 接著以上程序,在不同pH值下進行一系列擔體預處理, 如下: 步驟1.藉由添加所要量之氫氧化鋰將處理溶液(0.02 N氯化 鋰水溶液)之pH調節至該等指定值。除了每例中所用的pH 值之外,使用與在實例2中所述之程序相同的程序來處理載 體A的500 g試樣。 下表總結了載體A之鋰處理結果。 表4 實例 溶液 PH 處理溫度它 移除之納ppm 3 0.02 N氣化鋰 12 65 139 4 0.02 N氣化鋰 11 65 67 5 0.02 N氣化鋰 10.5 65 63 6 0.02 N氣化鋰 10 65 50 7 0.02 N氯化鋰 9.5 65 44 顯然納移除之速率與處理之pH值成比例。 實例8 於65°C下使用pH值為11之0.02 N氯化鉋溶液重複實例 2。使用1.0 N氫氧化铯溶液來調節鉋溶液之pH值。移除之 鈉的量為80.4 ppm。 實例9 於65°C下使用pH值為11之0.02 N氣化鉀溶液重複實例 92551.doc -14- 200505567 節鉋溶液之pH值 移除之 2。使用1.0 N氫氧化鉀溶液來調 納的量為78 ppm。 實例10 使用pH值為11之氫氧化鋰, 同的程序來洗滌載體B之試樣 實例11 在與實例2中所使用之程序相 矛夕除之納的量為180 ppm。 使用PH值為Η之氫氧化鐘,在與實例2中所使用之程序相 同的程序來絲載體c之試樣。移除之納的量為mppm。 實例12 於65 C下使用pH值為11之〇.3 N氨氧化錢溶液重複實例 2。在處理過程中使用》農縮的氫氧化銨溶液來調節溶液之阳 值。移除之納的量為53 ppm。 實例13-15 按照實例1的程序之精確細節,將15〇㊁載體試樣用於製 備銀催化劑。緞燒後以一高工作速率(33〇 Kg E〇/m3/hr )來 測試該等催也劑以測定其相對穩定性。表3總結了測試之結 果’且將其與未經預處理之載體的結果做了比較。 表5 實例# 載體 200 hr 之 選擇性 250 hr 之 選擇性 300 hr 之 選擇性 350 hr之 選擇性 400 hr之 選擇性 450 hr之 選擇性 1C 未經 處理 80.7 80.5 80.1 79.8 79.5 79.4 13 6 80.5 80.3 80.2 80 79.8 79.7 14 5 79.6 79.8 79.8 79.8 79.8 79.8 15 3 80.2 80.3 80.4 80.4 80.4 80.4 顯然最高之穩定性係於較高pH下洗滌載體之結果。 實例16-17 92551.doc -15- 200505567 洗滌過之載體B及C之150 g試樣用於製備銀催化劑,且以 一高工作速率(330 Kg EO/m3/hr.)來測試該等催化劑以測定 其相對穩定性,與實例16類似。表6總結了測試之結果。 表6 實例# 載體 200 hr之 選擇性 250 hr之 選擇性 300 hr之 選擇性 350 hr 之 選擇性 400 hr之 選擇性 450 hr之 選擇性 16 9 80.2 80.3 80.2 80.3 80.3 80.4 17 10 79.6 79.8 79.7 79.8 79.9 79.8 綜上可發現,藉由使用根據本發明之經處理過之擔體而 製備的催化劑在環氧乙烷之生產中具有高度穩定性及有效 性。 92551.doc -16-
Claims (1)
- 200505567 十、申請專利範圍: 1· 一種製備用於環氧乙烷生產之催化劑的方法,該催化劑 係包含承载於氧化鋁載體之銀,其改良之處包含使氧2 鋁載體與鹼性水溶液在低於100°C之溫度下接觸,及在處 過輊中藉由添加鹼而使驗性溶液之?11值保持在8以上。 2·女巾明專利範圍第工項之方法,其巾該阳值係保持在9以 上。 申月專矛】範圍第1項之方法,其中該^)11值係保持在1〇至 U.0之範圍内。 4.如中請專利範圍第丨至3項巾任—歡方法,其中驗係在 載體處理過程中添加於鹽水溶液中。 92551.doc 200505567 七、指定代表圖: (一) 本案指定代表圖為:(無) (二) 本代表圖之元件符號簡單說明: 八、本案若有化學式時,請揭示最能顯示發明特徵的化學式: (無) 92551.doc
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Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6939979B2 (en) * | 2003-11-10 | 2005-09-06 | Scientific Design Co., Inc. | Oxidation process and catalyst |
TW200600190A (en) * | 2004-04-01 | 2006-01-01 | Shell Int Research | Process for preparing a silver catalyst, the catalyst, and use thereof in olefin oxidation |
US7507844B2 (en) * | 2005-05-09 | 2009-03-24 | Sd Lizenzverwertungsgesellschaft Mbh & Co. Kg | Nanometer scale restructuring of alumina carrier surface and catalysts for the production of alkene oxides |
US20070280877A1 (en) * | 2006-05-19 | 2007-12-06 | Sawyer Technical Materials Llc | Alpha alumina supports for ethylene oxide catalysts and method of preparing thereof |
KR20090083937A (ko) * | 2006-11-20 | 2009-08-04 | 셀 인터나쵸나아레 레사아치 마아츠샤피 비이부이 | 담체 처리방법, 촉매 제조방법, 촉매, 및 이 촉매의 용도 |
CN102463141B (zh) | 2010-11-02 | 2015-05-06 | 中国石油化工股份有限公司 | 一种氧化铝载体、其制备方法、由其制成的银催化剂及其应用 |
US8987482B2 (en) | 2011-10-28 | 2015-03-24 | Basf Se | Process for producing a supported silver catalyst |
TWI632954B (zh) | 2013-05-16 | 2018-08-21 | 科學設計股份有限公司 | 改善環氧乙烷觸媒的催化效能之載體處理 |
TWI632138B (zh) | 2013-05-16 | 2018-08-11 | 科學設計股份有限公司 | 具有降低鈉含量之建基於銀之環氧乙烷觸媒 |
EP3749449B1 (en) | 2018-02-07 | 2022-02-02 | Basf Se | Method for preparing a silver impregnation solution |
EP3639923A1 (en) | 2018-10-15 | 2020-04-22 | Basf Se | Process for producing ethylene oxide by gas-phase oxidation of ethylene |
EP3639924A1 (en) | 2018-10-15 | 2020-04-22 | Basf Se | Catalyst for producing ethylene oxide by gas-phase oxidation |
EP3659703A1 (en) | 2018-11-28 | 2020-06-03 | Basf Se | Catalyst for producing ethylene oxide by gas-phase oxidation |
EP3885038A1 (en) | 2020-03-27 | 2021-09-29 | Basf Se | Process for producing an epoxidation catalyst |
CN115867381A (zh) | 2020-06-26 | 2023-03-28 | 巴斯夫欧洲公司 | 多孔催化剂载体成型体 |
WO2021260138A1 (en) | 2020-06-26 | 2021-12-30 | Basf Se | Shaped catalyst body for the production of ethylene oxide |
WO2021260140A1 (en) | 2020-06-26 | 2021-12-30 | Basf Se | Production of porous alpha-alumina supports from boehmitic derived aluminas |
CN116723893A (zh) | 2021-01-26 | 2023-09-08 | 巴斯夫欧洲公司 | 环氧化催化剂 |
WO2022268348A1 (en) | 2021-06-25 | 2022-12-29 | Basf Se | High purity tableted alpha-alumina catalyst support |
WO2024079247A1 (en) | 2022-10-12 | 2024-04-18 | Basf Se | Epoxidation catalyst |
Family Cites Families (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1170663A (en) | 1967-03-22 | 1969-11-12 | Shell Int Research | Process for preparing Silver Catalysts |
US3563913A (en) | 1967-10-30 | 1971-02-16 | Shell Oil Co | Silver catalyst production |
US3702259A (en) | 1970-12-02 | 1972-11-07 | Shell Oil Co | Chemical production of metallic silver deposits |
US4010115A (en) | 1972-01-07 | 1977-03-01 | Shell Oil Company | Catalyst for the oxidation of ethylene to ethylene oxide |
US4012425A (en) | 1972-01-07 | 1977-03-15 | Shell Oil Company | Ethylene oxide process |
GB1491447A (en) | 1973-12-05 | 1977-11-09 | Ici Ltd | Alkylene oxide production and catalysts therefor |
GB1489335A (en) * | 1973-10-26 | 1977-10-19 | Shell Int Research | Catalyst for the production of ethylene oxide |
US4212772A (en) | 1976-05-19 | 1980-07-15 | Basf Aktiengesellschaft | Catalyst for the manufacture of ethylene oxide |
DE2861030D1 (en) | 1977-11-19 | 1981-11-26 | Basf Ag | Process for preparing an ethylene oxide catalyst |
FR2412538A1 (fr) * | 1977-12-22 | 1979-07-20 | Ugine Kuhlmann | Catalyseurs a base d'argent pour la production d'oxyde d'ethylene |
DE2844402A1 (de) | 1978-10-12 | 1980-04-30 | Basf Ag | Silber enthaltende traegerkatalysatoren, verfahren zu ihrer herstellung und verfahren zur herstellung von aethylenoxid mittels dieser katalysatoren |
US4368144A (en) | 1980-12-22 | 1983-01-11 | Nippon Shokubai Kagaku Kogyo Co., Ltd. | Silver catalyst for production of ethylene oxide |
JPS57180434A (en) | 1981-04-30 | 1982-11-06 | Mitsubishi Petrochem Co Ltd | Silver catalyst for production of ethylene oxide |
DE3528313A1 (de) | 1985-08-07 | 1987-02-12 | Basf Ag | Silberkatalysator, seine herstellung und verwendung |
JPH084745B2 (ja) | 1986-05-09 | 1996-01-24 | 三菱化学株式会社 | エチレンオキシド製造用銀触媒 |
US4766105A (en) | 1986-10-31 | 1988-08-23 | Shell Oil Company | Ethylene oxide catalyst and process for preparing the catalyst |
IN169589B (zh) | 1986-10-31 | 1991-11-16 | Shell Int Research | |
US5057481A (en) | 1987-02-20 | 1991-10-15 | Union Carbide Chemicals And Plastics Technology Corporation | Catalyst composition for oxidation of ethylene to ethylene oxide |
US4908343A (en) | 1987-02-20 | 1990-03-13 | Union Carbide Chemicals And Plastics Company Inc. | Catalyst composition for oxidation of ethylene to ethylene oxide |
JP2561678B2 (ja) * | 1987-11-06 | 1996-12-11 | 三菱化学株式会社 | エチレンオキシド製造用銀触媒 |
DE68925767T2 (de) | 1988-08-30 | 1996-08-14 | Union Carbide Corp | Katalysatoren für die Herstellung von Ethylenoxid und Verfahren zur deren Herstellung |
US5102848A (en) | 1990-09-28 | 1992-04-07 | Union Carbide Chemicals & Plastics Technology Corporation | Catalyst composition for oxidation of ethylene to ethylene oxide |
US5447897A (en) | 1993-05-17 | 1995-09-05 | Shell Oil Company | Ethylene oxide catalyst and process |
US5418202A (en) * | 1993-12-30 | 1995-05-23 | Shell Oil Company | Ethylene oxide catalyst and process |
US5545603A (en) * | 1994-11-01 | 1996-08-13 | Shell Oil Company | Ethylene oxide catalyst and process |
US5504052A (en) | 1994-12-02 | 1996-04-02 | Scientific Design Company, Inc. | Silver catalyst preparation |
ES2155111T3 (es) | 1994-12-15 | 2001-05-01 | Shell Int Research | Procedimiento para preparar catalizadores para la obtencion de oxido de etileno. |
US5705661A (en) * | 1995-09-25 | 1998-01-06 | Mitsubishi Chemical Corporation | Catalyst for production of ethylene oxide |
WO1997046317A1 (en) * | 1996-06-05 | 1997-12-11 | Shell Internationale Research Maatschappij B.V. | Epoxidation catalyst and process |
DE69919425T2 (de) | 1998-02-20 | 2005-09-08 | Nippon Shokubai Co. Ltd. | Silberkatalysator zur Herstellung von Ethylenoxid , Verfahren zu seiner Herstellung und Verfahren zur Herstellung von Ethylenoxid |
CA2343784C (en) * | 1998-09-14 | 2007-11-13 | Shell Internationale Research Maatschappij B.V. | Process for preparing epoxidation catalysts with improved properties |
AU757735B2 (en) | 1998-09-14 | 2003-03-06 | Shell Internationale Research Maatschappij B.V. | Epoxidation catalyst carrier, preparation and use thereof |
CN1167500C (zh) | 1998-09-14 | 2004-09-22 | 国际壳牌研究有限公司 | 用于由催化剂表面除去可离子化物质以提高催化性能的方法 |
CN1126597C (zh) * | 2001-04-04 | 2003-11-05 | 中国石油化工股份有限公司 | 乙烯环氧化反应的银催化剂 |
CN1150991C (zh) * | 2001-07-27 | 2004-05-26 | 中国石油化工股份有限公司 | 用于生产环氧乙烷的银催化剂 |
US6987080B2 (en) * | 2002-03-01 | 2006-01-17 | Scientific Design Company, Inc. | Ethylene oxide catalyst carrier preparation |
US6750173B2 (en) * | 2002-04-08 | 2004-06-15 | Scientific Design Company, Inc. | Ethylene oxide catalyst |
-
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