WO2009124974A2 - Schalenkatalysatoren enthaltend ein molybdän enthaltendes multimetalloxid - Google Patents
Schalenkatalysatoren enthaltend ein molybdän enthaltendes multimetalloxid Download PDFInfo
- Publication number
- WO2009124974A2 WO2009124974A2 PCT/EP2009/054238 EP2009054238W WO2009124974A2 WO 2009124974 A2 WO2009124974 A2 WO 2009124974A2 EP 2009054238 W EP2009054238 W EP 2009054238W WO 2009124974 A2 WO2009124974 A2 WO 2009124974A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- molybdenum
- layer
- oxide
- carrier body
- coated
- Prior art date
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- 239000003054 catalyst Substances 0.000 title claims abstract description 64
- 229910052750 molybdenum Inorganic materials 0.000 title claims abstract description 34
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 239000011733 molybdenum Substances 0.000 title claims abstract description 30
- 229910044991 metal oxide Inorganic materials 0.000 title abstract description 5
- 229910000476 molybdenum oxide Inorganic materials 0.000 claims abstract description 41
- PQQKPALAQIIWST-UHFFFAOYSA-N oxomolybdenum Chemical compound [Mo]=O PQQKPALAQIIWST-UHFFFAOYSA-N 0.000 claims abstract description 41
- 239000002243 precursor Substances 0.000 claims abstract description 35
- 150000001875 compounds Chemical class 0.000 claims abstract description 28
- 229910052751 metal Inorganic materials 0.000 claims abstract description 3
- 239000002184 metal Substances 0.000 claims abstract description 3
- 239000011230 binding agent Substances 0.000 claims description 31
- 238000000034 method Methods 0.000 claims description 31
- 239000007789 gas Substances 0.000 claims description 18
- 230000003647 oxidation Effects 0.000 claims description 16
- 238000007254 oxidation reaction Methods 0.000 claims description 16
- 230000008569 process Effects 0.000 claims description 16
- 229910052760 oxygen Inorganic materials 0.000 claims description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 10
- 239000001301 oxygen Substances 0.000 claims description 10
- 238000002360 preparation method Methods 0.000 claims description 9
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 claims description 6
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 claims description 6
- IAQRGUVFOMOMEM-UHFFFAOYSA-N but-2-ene Chemical compound CC=CC IAQRGUVFOMOMEM-UHFFFAOYSA-N 0.000 claims description 6
- 230000003197 catalytic effect Effects 0.000 claims description 4
- 150000002894 organic compounds Chemical class 0.000 claims description 4
- 238000005839 oxidative dehydrogenation reaction Methods 0.000 claims description 4
- 229910052700 potassium Inorganic materials 0.000 claims description 4
- 229910052708 sodium Inorganic materials 0.000 claims description 4
- 229910052792 caesium Inorganic materials 0.000 claims description 3
- XNMQEEKYCVKGBD-UHFFFAOYSA-N dimethylacetylene Natural products CC#CC XNMQEEKYCVKGBD-UHFFFAOYSA-N 0.000 claims description 3
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Chemical group O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 abstract description 8
- HGINCPLSRVDWNT-UHFFFAOYSA-N Acrolein Chemical compound C=CC=O HGINCPLSRVDWNT-UHFFFAOYSA-N 0.000 description 18
- 239000000203 mixture Substances 0.000 description 16
- 239000000243 solution Substances 0.000 description 16
- 239000007788 liquid Substances 0.000 description 14
- 239000000843 powder Substances 0.000 description 14
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 12
- 238000001354 calcination Methods 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 239000000463 material Substances 0.000 description 9
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- 239000007858 starting material Substances 0.000 description 7
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical compound CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 6
- 229920000877 Melamine resin Polymers 0.000 description 6
- DKGAVHZHDRPRBM-UHFFFAOYSA-N Tert-Butanol Chemical compound CC(C)(C)O DKGAVHZHDRPRBM-UHFFFAOYSA-N 0.000 description 6
- 230000009849 deactivation Effects 0.000 description 6
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 6
- 238000007669 thermal treatment Methods 0.000 description 6
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 5
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- 239000000126 substance Substances 0.000 description 5
- IEORSVTYLWZQJQ-UHFFFAOYSA-N 2-(2-nonylphenoxy)ethanol Chemical compound CCCCCCCCCC1=CC=CC=C1OCCO IEORSVTYLWZQJQ-UHFFFAOYSA-N 0.000 description 4
- 230000009471 action Effects 0.000 description 4
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- 239000011651 chromium Substances 0.000 description 4
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- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-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
- 239000007900 aqueous suspension Substances 0.000 description 3
- 239000012298 atmosphere Substances 0.000 description 3
- 229910052797 bismuth Inorganic materials 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
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- 229910001882 dioxygen Inorganic materials 0.000 description 3
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- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 2
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- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 2
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 2
- STNJBCKSHOAVAJ-UHFFFAOYSA-N Methacrolein Chemical compound CC(=C)C=O STNJBCKSHOAVAJ-UHFFFAOYSA-N 0.000 description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 2
- 229910002651 NO3 Inorganic materials 0.000 description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 235000021355 Stearic acid Nutrition 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 150000001335 aliphatic alkanes Chemical class 0.000 description 2
- -1 ammonium heptamolybdate tetrahydrate Chemical class 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 2
- 150000001735 carboxylic acids Chemical class 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- PHFQLYPOURZARY-UHFFFAOYSA-N chromium trinitrate Chemical compound [Cr+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O PHFQLYPOURZARY-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000008103 glucose Substances 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- NNPPMTNAJDCUHE-UHFFFAOYSA-N isobutane Chemical compound CC(C)C NNPPMTNAJDCUHE-UHFFFAOYSA-N 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 150000002823 nitrates Chemical class 0.000 description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 2
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 2
- 238000001694 spray drying Methods 0.000 description 2
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- 238000000859 sublimation Methods 0.000 description 2
- 230000008022 sublimation Effects 0.000 description 2
- KDYFGRWQOYBRFD-UHFFFAOYSA-N succinic acid Chemical compound OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 2
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 2
- RTBFRGCFXZNCOE-UHFFFAOYSA-N 1-methylsulfonylpiperidin-4-one Chemical compound CS(=O)(=O)N1CCC(=O)CC1 RTBFRGCFXZNCOE-UHFFFAOYSA-N 0.000 description 1
- GUBGYTABKSRVRQ-XLOQQCSPSA-N Alpha-Lactose Chemical compound O[C@@H]1[C@@H](O)[C@@H](O)[C@@H](CO)O[C@H]1O[C@@H]1[C@@H](CO)O[C@H](O)[C@H](O)[C@H]1O GUBGYTABKSRVRQ-XLOQQCSPSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical class [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 description 1
- 229930091371 Fructose Natural products 0.000 description 1
- RFSUNEUAIZKAJO-ARQDHWQXSA-N Fructose Chemical compound OC[C@H]1O[C@](O)(CO)[C@@H](O)[C@@H]1O RFSUNEUAIZKAJO-ARQDHWQXSA-N 0.000 description 1
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- 241001441571 Hiodontidae Species 0.000 description 1
- GUBGYTABKSRVRQ-QKKXKWKRSA-N Lactose Natural products OC[C@H]1O[C@@H](O[C@H]2[C@H](O)[C@@H](O)C(O)O[C@@H]2CO)[C@H](O)[C@@H](O)[C@H]1O GUBGYTABKSRVRQ-QKKXKWKRSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- BZLVMXJERCGZMT-UHFFFAOYSA-N Methyl tert-butyl ether Chemical compound COC(C)(C)C BZLVMXJERCGZMT-UHFFFAOYSA-N 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 1
- 229930006000 Sucrose Natural products 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 description 1
- 150000001242 acetic acid derivatives Chemical class 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 150000001414 amino alcohols Chemical class 0.000 description 1
- QGAVSDVURUSLQK-UHFFFAOYSA-N ammonium heptamolybdate Chemical compound N.N.N.N.N.N.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.[Mo].[Mo].[Mo].[Mo].[Mo].[Mo].[Mo] QGAVSDVURUSLQK-UHFFFAOYSA-N 0.000 description 1
- APUPEJJSWDHEBO-UHFFFAOYSA-P ammonium molybdate Chemical compound [NH4+].[NH4+].[O-][Mo]([O-])(=O)=O APUPEJJSWDHEBO-UHFFFAOYSA-P 0.000 description 1
- 229940010552 ammonium molybdate Drugs 0.000 description 1
- 235000018660 ammonium molybdate Nutrition 0.000 description 1
- 239000011609 ammonium molybdate Substances 0.000 description 1
- JFCQEDHGNNZCLN-UHFFFAOYSA-N anhydrous glutaric acid Natural products OC(=O)CCCC(O)=O JFCQEDHGNNZCLN-UHFFFAOYSA-N 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 150000003857 carboxamides Chemical class 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 239000012876 carrier material Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 229910052729 chemical element Inorganic materials 0.000 description 1
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- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006356 dehydrogenation reaction Methods 0.000 description 1
- 150000001993 dienes Chemical class 0.000 description 1
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 150000004675 formic acid derivatives Chemical class 0.000 description 1
- 239000001530 fumaric acid Substances 0.000 description 1
- 235000011087 fumaric acid Nutrition 0.000 description 1
- 235000001727 glucose Nutrition 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 description 1
- RXPAJWPEYBDXOG-UHFFFAOYSA-N hydron;methyl 4-methoxypyridine-2-carboxylate;chloride Chemical compound Cl.COC(=O)C1=CC(OC)=CC=N1 RXPAJWPEYBDXOG-UHFFFAOYSA-N 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 239000001282 iso-butane Substances 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000008101 lactose Substances 0.000 description 1
- 239000012263 liquid product Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- GDXTWKJNMJAERW-UHFFFAOYSA-J molybdenum(4+);tetrahydroxide Chemical class [OH-].[OH-].[OH-].[OH-].[Mo+4] GDXTWKJNMJAERW-UHFFFAOYSA-J 0.000 description 1
- 150000002772 monosaccharides Chemical class 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 229920001542 oligosaccharide Polymers 0.000 description 1
- 150000002482 oligosaccharides Chemical class 0.000 description 1
- 150000003891 oxalate salts Chemical class 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 239000012495 reaction gas Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 229910052701 rubidium Inorganic materials 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
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- 229910052712 strontium Inorganic materials 0.000 description 1
- 239000001384 succinic acid Substances 0.000 description 1
- 235000011044 succinic acid Nutrition 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- 238000004441 surface measurement Methods 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- GXZZNUGESLEFGV-UHFFFAOYSA-N trioxomolybdenum;hydrate Chemical group O.O=[Mo](=O)=O GXZZNUGESLEFGV-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
- C07C5/32—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by dehydrogenation with formation of free hydrogen
- C07C5/327—Formation of non-aromatic carbon-to-carbon double bonds only
- C07C5/333—Catalytic processes
- C07C5/3332—Catalytic processes with metal oxides or metal sulfides
-
- 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
- B01J23/002—Mixed oxides other than spinels, e.g. perovskite
-
- 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
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/85—Chromium, molybdenum or tungsten
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- B01J37/0244—Coatings comprising several layers
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- C—CHEMISTRY; METALLURGY
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- C07—ORGANIC CHEMISTRY
- C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
- C07B35/00—Reactions without formation or introduction of functional groups containing hetero atoms, involving a change in the type of bonding between two carbon atoms already directly linked
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- 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
- B01J37/0027—Powdering
- B01J37/0045—Drying a slurry, e.g. spray drying
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- B01J37/0215—Coating
- B01J37/0221—Coating of particles
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- C07C2523/02—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of the alkali- or alkaline earth metals or beryllium
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- C07C2523/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
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- C07C2523/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
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- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2523/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00
- C07C2523/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- C07C2523/24—Chromium, molybdenum or tungsten
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- C—CHEMISTRY; METALLURGY
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- C07C2523/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of the iron group metals or copper
- C07C2523/74—Iron group metals
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- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2523/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00
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- C07C2523/74—Iron group metals
- C07C2523/75—Cobalt
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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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
- Y10T428/2991—Coated
Definitions
- Shell catalysts containing a molybdenum-containing multimetal Shell catalysts containing a molybdenum-containing multimetal
- the present invention relates to coated catalysts comprising a catalytically active, molybdenum-containing multimetal.
- the active Mass is a molybdenum-containing multimetal.
- the term multimetal oxide expresses the fact that the active mass in addition to molybdenum and oxygen still contains at least one other chemical element.
- Catalysts of the aforementioned type are suitable, for example, for the catalysis of the heterogeneously catalyzed partial gas phase oxidation of acrolein to acrylic acid.
- EP-A 990636 and EP-A 1106598 suggest that the reduction in the activity of the fixed catalyst bed is largely compensated for by the fact that the temperature of the fixed catalyst bed is gradually increased in the course of the operating time under otherwise largely constant operating conditions in order to reduce the acrolein conversion once Passage of the reaction gas mixture through the fixed catalyst bed substantially maintain.
- a disadvantage of this procedure is that as the temperature of the fixed catalyst bed increases, the aging process accelerates progressively. Finally, the catalyst bed must be completely replaced.
- DE-A 102004025445 proposes the long-term operation of the heterogeneously catalyzed partial gas phase oxidation of acrolein to acrylic acid, the deactivation of the catalyst. Counteract catalyst fixed bed by the fact that the working pressure in the gas phase is increasingly increased with increasing service life of the fixed catalyst bed. A disadvantage of this procedure is that with increasing working pressure in the heterogeneously catalyzed partial gas phase oxidation increased compression powers are required gene.
- EP-A 614872 recommends prolonging the service life of the fixed catalyst bed by interrupting the partial oxidation process after several years of operation of the fixed catalyst bed and passing a regeneration gas mixture of oxygen, water vapor and inert gas through the catalyst catalyst bed at elevated temperature, followed by partial oxidation continues.
- EP-A 0 630 879 describes a process for the catalytic oxidation of propene, isobutene or tert-butanol over a multimetal oxide catalyst comprising molybdenum, bismuth and iron, in the presence of a molybdenum oxide which is essentially catalytically inactive.
- the presence of the molybdenum oxide inhibits the deactivation of the multimetal oxide catalyst.
- the molybdenum oxide can be present in the form of separate molybdenum oxide particles, optionally on a support, in admixture with particles of the multimetal oxide catalyst. It is also possible to prepare a mixture of pulverulent molybdenum oxide and pulverulent multimetal oxide catalyst and to extrude the mixture into shaped catalyst bodies or to apply it to a support.
- German patent application DE 10 2007 010 422 describes a deactivation of shell catalysts for the heterogeneously catalyzed partial gas phase oxidation of acrolein to acrylic acid, the active composition of which is a finely divided multi-element oxide containing Mo and V applied to a support body. that the catalytically active material from the Mo and V-containing multimetal oxide, an oxide of molybdenum or a compound fertilize the molybdenum, from which forms an oxide of molybdenum admixed.
- the shell catalyst is coated with a mixture of molybdenum oxide or the precursor compound and the multimetal oxide.
- the object of the invention is to provide catalysts based on molybdenum-containing multi-metal oxides which have improved deactivation behavior.
- a shell catalyst comprising
- the object is further achieved by a process for the preparation of the coated catalysts according to the invention, in which applying a first layer of a molybdenum oxide or a precursor compound which forms molybdenum oxide on a carrier body by means of a binder, optionally drying the coated with the first layer carrier body and calcined, and applied to the first layer by means of a binder, a second layer of a molybdenum-containing multimetal, and drying and calcining the coated with the first and second layer carrier body.
- the object is further achieved by the use of the coated catalysts according to the invention in processes for the catalytical gas-phase oxidation of organic compounds.
- the first layer may comprise a molybdenum oxide or a precursor compound which forms molybdenum oxide.
- the precursor compound is a compound of molybdenum from which an oxide of molybdenum forms under the action of elevated temperature and in the presence of molecular oxygen.
- the action of the elevated temperature and of the molecular oxygen can take place following the application of the precursor compound to the surface of the carrier body.
- a thermal treatment z. B. under an oxygen or air atmosphere.
- suitable precursor compounds other than an oxide of molybdenum include ammonium molybdate [(NH 4 J 2 MoO 4 ] and ammonium polymolybdate such as ammonium heptamolybdate tetrahydrate [(NH 4 J 6 Mo 7 O 24 • 4 H 2 O].
- ammonium molybdate [(NH 4 J 2 MoO 4 ]
- ammonium polymolybdate such as ammonium heptamolybdate tetrahydrate [(NH 4 J 6 Mo 7 O 24 • 4 H 2 O].
- molybdenum oxide hydrate MoO 3 ⁇ xH 2 O
- molybdenum hydroxides are also suitable precursor compounds of this type.
- the conversion of the precursor compound into an oxide of molybdenum by the action of heat and oxygen can also be carried out only during the use of the catalyst in the catalytic gas phase oxidation.
- the first layer preferably already contains an oxide of molybdenum.
- an oxide of molybdenum This is understood as meaning a substance which consists of ⁇ 98% by weight, preferably ⁇ 99% by weight and more preferably ⁇ 99.9% by weight and more, only of Mo and O.
- Particularly preferred molybdenum oxide is molybdenum trioxide (MoO 3 ).
- molybdenum oxides are, for example Mo 18 O 52, Mo 8 O 23 and Mo 4 O 11 (see, e.g., Surface Sc;.. Ence 292 (1993) 261-6, or J. Solid State Chem 124 (1996) 104th ).
- the specific surface area 0 M of a suitable molybdenum oxide is ⁇ 10 2 m 2 / g, preferably ⁇ 5 m 2 / g and particularly preferably ⁇ 2 m 2 / g. In general, however, the specific surface area 0 M will be ⁇ 0.01 m 2 / g, frequently ⁇ 0.05 m 2 / g and in many cases 0.1 m 2 / g.
- the specific surface area is understood to mean the BET surface area (determined by gas adsorption (N 2 ) according to Brunauer-Emmet-Teller (BET)).
- BET Brunauer-Emmet-Teller
- the above statements regarding O M apply in particular when the finely divided molybdenum oxide is MoO 3 .
- the advantageousness of a low value for O M is due to the fact that a molybdenum oxide with a low value for O M is largely inert in the context of an oxidative alkane dehydrogenation.
- Particle diameter distributions and particle diameters d x taken from them (eg d 10 , or d 50 , or d 90 ) refer to determinations according to ISO 13320 with the Malvern Mastersizer S laser diffraction spectrometer (Malvern Instruments, Worcestshire WR 14 1AT, United Kingdom).
- the particle diameter d x indicated as the measurement result is defined such that X% of the total particle volume consists of particles with this or a smaller diameter.
- precursor compounds or molybdenum oxides are generally used for which 0.1 ⁇ m ⁇ d 50 ⁇ 800 ⁇ m, preferably 0.5 ⁇ m ⁇ d 50 ⁇ 600 ⁇ m, particularly preferably 0.75 ⁇ m ⁇ d 50 ⁇ 400 ⁇ m, and most preferably 1 ⁇ m ⁇ d 50 ⁇ 200 ⁇ m.
- the grain size of the precursor compound or the molybdenum oxide is adapted to the desired thickness D A of the first layer on the surface of the carrier body.
- d is 50 ⁇ D A, preferably ⁇ 0,75 • D A, particularly preferably ⁇ 0.5 • D A and very particularly preferably ⁇ 0.3 • D A. Normalerwei- However, d 50 will be ⁇ 0.001 • D A , or> 0.01 • D A , often ⁇ 0.05 • D A and often> 0.1 • D A.
- a suitable molybdenum oxide (eg MoO 3 ) can be produced from a precursor compound containing another Mo.
- z. B. of ammonium heptamolybdate tetrahydrate [(NH 4 ) B Mo 7 O 24 • 4 H 2 O] are assumed.
- thermal treatment at 350 0 C in likewise a temperature of 350 0 C having air flow this is converted into MoO 3 .
- the grain size of the MoO 3 can be adjusted as required by appropriate grinding and sieving.
- the specific surface area of the MoO 3 can be adjusted as desired. With increasing duration of the thermal treatment and / or increase in the temperature of the thermal treatment (after MoO 3 has been formed under inert gas or under a molecular oxygen-containing gas atmosphere, eg air), the specific surface area decreases.
- MoO 3 is suitable for the Climax Molybdenum Marketing Corporation (Phoenix, USA), which has a Mo content of 66.60% by weight and a specific surface O M of 3.7 m 2 / g (trade name : "Pure Mooney Oxide Crystalline POC").
- the aforementioned MoO 3 additionally has the following foreign constituent specification: Na ⁇ 8 ppm by weight, K ⁇ 29 ppm by weight, Fe ⁇ 4 ppm by weight, Pb ⁇ 1 ppm by weight, Al ⁇ 4% by weight ppm, Cr ⁇ 2 ppm by weight, Ca ⁇ 2 ppm by weight, Cu ⁇ 2 ppm by weight, Mg ⁇ 5 ppm by weight, Ni ⁇ 2 ppm by weight, Si ⁇ 5% by weight. ppm, Sn ⁇ 1 ppm by weight, and Ti ⁇ 2 ppm by weight.
- MoO 3 from Climax Molybdenum Marketing Corporation of the "POS" type of trade can also be used according to the invention
- MoO 3 from the company HC Starck, D-38615 Goslar can be used for the process according to the invention as commercial MoO 3 (trade name: "Molybdenum Trioxide I"). This has a specific surface O M of 1 m 2 / g. The Mo content of this MoO 3 is 66.6 wt .-%.
- MoO 3 from the following manufacturers can also be used:
- the catalytically active, molybdenum-containing multimetal oxide may be, for example, a Mo and V-containing multimetal oxide of the general formula (I),
- X 2 Cu, Ni, Co, Fe, Mn and / or Zn,
- X 3 Sb and / or Bi
- X 4 one or more alkali metals (Li, Na, K, Rb, Cs) and / or H,
- Such molybdenum and vanadium-containing multimetal oxides are known as catalysts for the selective gas phase oxidation of propene to acrolein.
- the catalytically active molybdenum-containing multimetal oxide is preferably a multimetal oxide of the general formula II
- X 2 Si and / or Al
- X 3 Li, Na, K, Cs and / or Rb, 0.2 ⁇ a ⁇ 1,
- the stoichiometric coefficient a is preferably 0.4 ⁇ a ⁇ 1, more preferably 0.4 ⁇ a ⁇ 0.95.
- the stoichiometric coefficient b is preferably in the range 0.1 ⁇ b ⁇ 2, and particularly preferably in the range 0.1 ⁇ b ⁇ 1.
- the stoichiometric coefficient c is preferably in the range 4 ⁇ c ⁇ 8, and particularly preferably in the range 6 ⁇
- the value for the variable d is advantageously in the range 1 ⁇ d ⁇ 5 and with particular advantage in the range 2 ⁇ d ⁇ 4.
- the stoichiometric coefficient f is expediently> 0. Preferably, 0.01 ⁇ f ⁇ 0 , 5 and more preferably 0.05 ⁇ f ⁇ 0.2.
- Coated catalysts according to the invention with catalytically active oxide whose molar ratio of Co / Ni is at least 2: 1, preferably at least 3: 1 and more preferably at least 4: 1. The best is only Co.
- Such molybdenum-containing multimetal oxides are not only suitable for the selective gas phase oxidation of propene to acrolein, but also for the partial gas phase oxidation of other alkenes, alkanes, alkanones or alkanols to alpha, beta-unsaturated aldehydes and / or carboxylic acids.
- Examples include the preparation of methacrolein and methacrylic acid from isobutene, isobutane, tert-butanol or tert-butyl methyl ether.
- Preferred gas phase oxidations for which the coated catalysts according to the invention are used are oxidative dehydrogenations of alkenes to 1,3-dienes, in particular of 1-butene and / or 2-butene to 1,3-butadiene.
- one of the starting compounds of the elemental constituents of the catalytically active oxide material produces an intimate dry mixture and treating the intimate dry blend at a temperature of 150 to 350 0 C thermally.
- suitable finely divided multimetal oxide masses starting from known starting compounds of the elemental constituents of the desired multimetal oxide composition in the respective stoichiometric ratio is started, and from these produces a very intimate, preferably finely divided dry mixture, which then undergoes thermal treatment is subjected.
- the sources can either already be oxides, or those compounds which can be converted into oxides by heating in the presence of oxygen.
- suitable starting compounds are, in particular, halides, nitrates, formates, oxalates, acetates, carbonates or hydroxides.
- Suitable starting compounds of Mo are also its oxo compounds (lybdate) or derived from these acids.
- Suitable starting compounds of Bi, Fe and Co are in particular their nitrates.
- the intimate mixing of the starting compounds can in principle be carried out in dry or in the form of aqueous solutions or suspensions.
- the intimate mixing takes place in the form of aqueous solutions or aqueous suspensions.
- Particularly intimate dry mixtures are obtained in the described mixing process when starting exclusively from sources and starting compounds present in dissolved form.
- the solvent used is preferably water.
- the aqueous mass (solution or suspension) is dried and the resulting intimate dry mixture optionally directly thermally treated.
- the drying process is carried out by spray drying (the outlet temperatures are generally 100 to 150 0 C) and immediately after the completion of the aqueous solution or suspension.
- the resulting powder for immediate further processing often proves to be too finely divided, it is expediently kneaded with the addition of water.
- a lower organic carboxylic acid eg acetic acid
- Typical additional amounts are from 5 to 10 wt .-%, based on the powder mass.
- Support materials suitable for shell-type catalysts obtainable according to the invention are e.g. porous or preferably non-porous aluminum oxides, silicon dioxide, zirconium oxide, silicon carbide or silicates such as magnesium or aluminum silicate (for example C 220 steatite from CeramTec).
- the materials of the carrier bodies are chemically inert.
- the carrier bodies may be regularly or irregularly shaped, with regularly shaped carrier bodies having a distinct surface roughness, e.g. B. balls, cylinders or hollow cylinder with chippings, are preferred. Their longest extent is usually 1 to 10 mm.
- the support materials may be porous or non-porous.
- the carrier material is preferably non-porous (total volume of the pores based on the volume of the carrier body preferably ⁇ 1% by volume).
- An increased surface roughness of the carrier body usually requires an increased adhesive strength of the applied shell of the first and second layers.
- the surface roughness R z of the carrier body is in the range of 30 to 100 ⁇ m, preferably 50 to 70 ⁇ m (determined according to DIN 4768 Part 1 with a "Hommel tester for DIN-ISO surface measurement quantities" from Hommelwerke).
- Surface-roughened carrier bodies from CeramTec made of steatite C 220 are particularly preferred.
- Particularly suitable according to the invention is the use of substantially nonporous, surface-rough, spherical supports made of steatite (eg steatite of the C 220 type from CeramTec) whose diameter is 1 to 8 mm, preferably 2 to 6 mm, particularly preferably 2 to 3 or 4 to 5 mm.
- steatite eg steatite of the C 220 type from CeramTec
- cylinders as support bodies whose length is 2 to 10 mm and whose outer diameter is 4 to 10 mm.
- the wall thickness is usually 1 to 4 mm.
- annular support body Preferably to be used annular support body have a length of 2 to 6 mm, an outer diameter of 4 to 8 mm and a wall thickness of 1 to 2 mm.
- rings of geometry 7 mm x 3 mm x 4 mm outer diameter x length x inner diameter
- the shell thickness D A of the applied on the support body first layer of molybdenum oxide or the precursor compound is usually at 5 to 1000 microns. Preferred are 10 to 500 microns, more preferably 20 to 250 microns and most preferably 30 to 150 microns.
- the shell thickness D 8 of the second layer of a molybdenum-containing multimetal oxide material applied to the first layer is generally from 5 to 1000 ⁇ m. Preferred are 10 to 500 microns, more preferably 20 to 250 microns and most preferably 30 to 150 microns.
- the grain size (fineness) of the Mo-containing finely divided multimetal oxide is adjusted in the same way as the grain size of the molybdenum oxide or the precursor compound to the desired shell thickness D B. All statements made with regard to the longitudinal expansion d L of the molybdenum oxide or of the precursor compound therefore apply correspondingly to the longitudinal expansion d L of the finely divided Mo-containing multimetal oxide.
- the mass ratio of the second layer of multimetal oxide to the first layer of molybdenum oxide in the final calcined catalyst is generally from 100: 1 to 1: 1, preferably from 50: 1 to 5: 1.
- the application of the finely divided masses (molybdenum oxide or precursor compound or molybdenum-containing multimetal oxide) to the surface of the carrier body can in accordance with the methods described in the prior art, for example as described in US-A 2006/0205978 and EP-A 0 714 700.
- the finely divided masses are applied to the surface of the carrier body or to the surface of the first layer by means of a liquid binder.
- a liquid binder z.
- water an organic solvent or a solution of an organic substance (eg., An organic solvent) in water or in an organic solvent into consideration.
- organic binders mono- or polyhydric organic alcohols such as ethylene glycol, 1, 4-butanediol, 1, 6-hexanediol or glycerol, mono- or polyvalent organic carboxylic acids such as propionic acid, oxalic acid, malonic acid, glutaric acid or maleic acid, amino alcohols such as ethanolamine or diethanolamine and mono- or polyhydric organic amides such formamide.
- organic soluble organic binder promoters are, for.
- monosaccharides and oligosaccharides such as glucose, fructose, sucrose and lactose suitable.
- the liquid binder used is particularly advantageously a solution consisting of 20 to 98% by weight of water and 2 to 80% by weight of an organic compound.
- the organic content of the aforementioned liquid binders is 2 to 50 and more preferably 5 to 20 wt .-%.
- the boiling point or sublimation point of such organic binders or binder constituents is at the same time below the highest calcination temperature used in the preparation of the finely divided multimetal oxide containing the Mo moieties.
- Ub SHORT- is this highest calcination temperature at ⁇ 600 0 C, often at ⁇ 500 0 C or at ⁇ 400 0 C, sometimes even at ⁇ 300 0 C.
- Particularly preferred liquid binders are solutions which consist of 20 to 98% by weight of water and 2 to 80% by weight of glycerol.
- the proportion of glycerol in these aqueous solutions is preferably 2 to 50% by weight and more preferably 5 to 20% by weight.
- the application of the molybdenum oxide or the precursor compound and the Mo-containing finely divided multimetal oxide can be carried out in such a way that the finely divided ge substance disperses dispersed in the liquid binder and sprayed the resulting suspension to moving and optionally hot carrier body, as described in DE-A 1642921, DE-A 2106796 and DE-A 2626887.
- the coated carrier body After application of the first layer of molybdenum oxide or the precursor compound, the coated carrier body can be dried and calcined. Subsequently, in the same manner, the second layer of Mo-containing multimetal oxide is applied to the first layer, dried and calcined. However, it is also possible to apply the second layer directly to the first layer in the manner described above without drying and calcining beforehand, and drying and calcining first the carrier body coated with first and second layers. Preferably, after application of the first layer, the coated carrier body is dried.
- the carrier body is first moistened with the liquid binder, and subsequently the finely divided mass (molybdenum oxide or precursor compound) is applied to the surface of the carrier body moistened with the binder by rolling the moistened carrier body in the finely divided mass.
- the method described above is preferably repeated several times, i. H. the base-coated carrier body is moistened again and then coated by contact with dry finely divided mass.
- the coated carrier body After application of the first layer of molybdenum oxide or the precursor compound, the coated carrier body can be dried and calcined. Subsequently, the second layer of multimetal oxide is applied in the same manner, and dried the first and second layer coated carrier body and calcined.
- the coated carrier body is calcined at a temperature of 150 to 600 0 C, preferably from 270 to 500 0 C.
- the calcination time is generally 2 to 24 hours, preferably 5 to 20 hours.
- the calcination is carried out in an oxygen-containing atmosphere, preferably air and / or lean air.
- the calcination is carried out according to a temperature program in which a total of 2 to 10 h at temperatures between 150 and 350 0 C, preferably calcined 200 to 300 0 C and then calcined at temperatures between 350 and 550 0 C, preferably 400 to 500 0 C calcined.
- a calcining temperature of about 300 0 C is sufficient, wherein after application of the second layer is preferably calcined at at least 400 0 C.
- the molybdenum oxide, the molybdenum oxide-forming precursor compound and the catalytically active molybdenum-containing multimetal oxide composition may each contain a pore-forming agent. This may be contained in the finely divided masses or added to the liquid binder.
- Suitable pore formers are, for example, malonic acid, melamine, nonylphenol ethoxylate, stearic acid, glucose, starch, fumaric acid and succinic acid. Preference is given to stearic acid, nonylphenol ethoxylate and melamine.
- Pore formers are generally present in amounts of from 1 to 40% by weight, preferably from 1 to 20% by weight, in the masses applied to the carrier body, these details being based on the sum of all components of the respective layer (molybdenum oxide or precursor compound, Pore-forming agent, binder or multimetal oxide, pore-forming agent, binder).
- the carrier bodies to be coated are filled into a preferably inclined (the angle of inclination is generally 30 to 90 °) rotating rotary container (eg turntable or coating pan).
- the rotating rotary container guides the in particular spherical, cylindrical or hollow-cylindrical carrier bodies under two metering devices arranged at a certain distance one after the other.
- the first of the two metering devices is expediently a nozzle, through which the carrier bodies rolling in the rotating turntable are sprayed with the liquid binder to be used and moistened in a controlled manner.
- the second metering device is located outside of the atomizing cone of the sprayed liquid binder and serves to supply the finely divided mass, for example via a vibrating trough.
- the controlled moistened carrier balls take up the supplied active mass powder, which compacts by the rolling movement on the outer surface of the cylindrical or spherical carrier body to form a coherent shell.
- the support body coated in this way in the course of the subsequent revolution, in turn, passes through the spray nozzle, is moisturized in a controlled manner in order to receive a further layer of finely divided mass in the course of the further movement can, etc.
- An intermediate drying is usually not required.
- the removal of the liquid binder used in the invention may, partially or completely, by final heat, for. B. by the action of hot gases such as N 2 or air done.
- a particular advantage of the above-described embodiment of the method according to the invention is that shell catalysts with shells consisting of two or more different masses can be produced in one operation.
- the method according to the invention in this case brings about both a fully satisfactory adhesion of the successive layers to one another, as well as the base layer on the surface of the carrier body. This also applies in the case of annular carrier bodies.
- the present invention also provides for the use of the shell catalysts according to the invention in processes for the catalytic gas-phase oxidation of organic compounds, for example from propene to acrolein, from acrolein to acrylic acid, from isobutene or tert-butanol to methacrolein or methacrylic acid, or in processes for oxidative Dehydrogenation of olefins to serve.
- organic compounds for example from propene to acrolein, from acrolein to acrylic acid, from isobutene or tert-butanol to methacrolein or methacrylic acid, or in processes for oxidative Dehydrogenation of olefins to serve.
- the use of the coated catalysts in processes for the oxidative dehydrogenation of olefins to dienes, especially 1-butene and / or 2-butene to butadiene is particularly preferred.
- the solution B was pumped to solution A by means of a hose pump within 15 min. During the addition and then by means of an intensive mixer (Ultra-Turrax) was stirred. After completion of the addition, stirring was continued for a further 5 minutes.
- an intensive mixer Ultra-Turrax
- the suspension obtained was spray-dried in a spray tower from NIRO (spray head No. FO A1, rotational speed 25,000 rpm) over a period of 1.5 h.
- the original temperature was kept at 60 0 C.
- the gas inlet temperature of the spray tower was 300 0 C, the gas outlet temperature 110 0 C.
- the obtained powder had a particle size (d90) of less than 40 microns.
- the resulting powder was calcined batchwise (500 g) in a covered porcelain dish in a convection oven (500 Nl / h) at 460 ° C.
- the finely powdered precursor composition A was introduced into the drum via a powder screw, with the point of powder addition being within the unrolling section but below the spray cone. The powder addition was metered so that a uniform distribution of the powder on the surface was formed. After completion of the coating, the resulting coated catalyst from precursor material A and the support body was dried in a drying oven at 120 ° C. for 2 hours.
- the shell catalyst was then calcined at 455 ° C. in a convection oven from Heraeus, DE (type K, 750/2 S, internal volume 55 l).
- Pore former, 2nd layer precursor material A with melamine as pore former
- the coated catalyst S2 was prepared:
- the shell catalyst S3 was prepared:
- the coated catalyst S4 was prepared as follows: 49.5 g precursor A was applied to 425 g S4a according to the procedure at VS1. The consumption of binder was 31 ml, the application time was 36 min. The resulting double-shelled catalyst was S4.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Catalysts (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2009801126593A CN101990459A (zh) | 2008-04-09 | 2009-04-08 | 包含含钼多金属氧化物的涂覆催化剂 |
JP2011503437A JP2011516256A (ja) | 2008-04-09 | 2009-04-08 | モリブデンを含有する多金属酸化物を含むシェル触媒 |
CA2719532A CA2719532A1 (en) | 2008-04-09 | 2009-04-08 | Coated catalysts comprising a multimetal oxide comprising molybdenum |
EP09730114A EP2271424A2 (de) | 2008-04-09 | 2009-04-08 | Schalenkatalysatoren enthaltend ein molybdän enthaltendes multimetalloxid |
US12/937,210 US8461074B2 (en) | 2008-04-09 | 2009-04-08 | Coated catalysts comprising a multimetal oxide comprising molybdenum |
Applications Claiming Priority (2)
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EP08154240.9 | 2008-04-09 | ||
EP08154240 | 2008-04-09 |
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WO2009124974A2 true WO2009124974A2 (de) | 2009-10-15 |
WO2009124974A3 WO2009124974A3 (de) | 2010-01-21 |
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ID=41076706
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PCT/EP2009/054238 WO2009124974A2 (de) | 2008-04-09 | 2009-04-08 | Schalenkatalysatoren enthaltend ein molybdän enthaltendes multimetalloxid |
Country Status (7)
Country | Link |
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US (1) | US8461074B2 (de) |
EP (1) | EP2271424A2 (de) |
JP (1) | JP2011516256A (de) |
CN (1) | CN101990459A (de) |
CA (1) | CA2719532A1 (de) |
TW (1) | TW200948474A (de) |
WO (1) | WO2009124974A2 (de) |
Cited By (4)
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WO2013113743A1 (de) | 2012-01-30 | 2013-08-08 | Basf Se | Verfahren zur herstellung von butadien und/oder butenen aus n-butan |
WO2014044693A1 (de) | 2012-09-20 | 2014-03-27 | Basf Se | Verfahren zur herstellung von butadien mit entfernung von sauerstoff aus c4-kohlenwasserstoffströmen |
EP2865709A1 (de) * | 2013-10-18 | 2015-04-29 | Littelfuse, Inc. | Sicherungsfüller aus Schaumstoff und Patronensicherung |
DE102014203725A1 (de) | 2014-02-28 | 2015-09-03 | Basf Se | Oxidationskatalysator mit sattelförmigem Trägerformkörper |
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CN102389806A (zh) * | 2011-10-08 | 2012-03-28 | 连云港阳方催化科技有限公司 | 用于丙烯催化氧化合成丙烯醛的催化剂及其制法 |
CN103772181B (zh) * | 2012-10-23 | 2015-11-18 | 中国石油天然气股份有限公司 | 一种不饱和醛选择性氧化方法 |
EA201690165A1 (ru) * | 2013-07-10 | 2016-06-30 | Басф Се | Способ окислительного дегидрирования н-бутенов в бутадиен |
DE102013226370A1 (de) | 2013-12-18 | 2015-06-18 | Evonik Industries Ag | Herstellung von Butadien durch oxidative Dehydrierung von n-Buten nach vorhergehender Isomerisierung |
DE102015200702A1 (de) | 2015-01-19 | 2016-07-21 | Evonik Degussa Gmbh | Herstellung von Butadien aus Ethen |
KR20180055154A (ko) * | 2016-11-16 | 2018-05-25 | 주식회사 엘지화학 | 촉매의 제조 방법 |
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- 2009-04-08 EP EP09730114A patent/EP2271424A2/de not_active Withdrawn
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WO2013113743A1 (de) | 2012-01-30 | 2013-08-08 | Basf Se | Verfahren zur herstellung von butadien und/oder butenen aus n-butan |
WO2014044693A1 (de) | 2012-09-20 | 2014-03-27 | Basf Se | Verfahren zur herstellung von butadien mit entfernung von sauerstoff aus c4-kohlenwasserstoffströmen |
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Also Published As
Publication number | Publication date |
---|---|
WO2009124974A3 (de) | 2010-01-21 |
TW200948474A (en) | 2009-12-01 |
CN101990459A (zh) | 2011-03-23 |
US20110034326A1 (en) | 2011-02-10 |
US8461074B2 (en) | 2013-06-11 |
CA2719532A1 (en) | 2009-10-15 |
JP2011516256A (ja) | 2011-05-26 |
EP2271424A2 (de) | 2011-01-12 |
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