FI119920B - Komposition baserad på en bland-oxid av cerium och zirkonium, framställning och användning - Google Patents
Komposition baserad på en bland-oxid av cerium och zirkonium, framställning och användning Download PDFInfo
- Publication number
- FI119920B FI119920B FI935748A FI935748A FI119920B FI 119920 B FI119920 B FI 119920B FI 935748 A FI935748 A FI 935748A FI 935748 A FI935748 A FI 935748A FI 119920 B FI119920 B FI 119920B
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- composition
- cerium
- zirconium
- solution
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- 239000000203 mixture Substances 0.000 title claims abstract description 109
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 229910052726 zirconium Inorganic materials 0.000 title claims abstract description 29
- 229910052684 Cerium Inorganic materials 0.000 title claims description 24
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 title description 22
- 239000000047 product Substances 0.000 claims abstract description 40
- 238000000034 method Methods 0.000 claims abstract description 33
- 238000001354 calcination Methods 0.000 claims abstract description 28
- 239000003054 catalyst Substances 0.000 claims abstract description 28
- 229910000420 cerium oxide Inorganic materials 0.000 claims abstract description 22
- 238000010438 heat treatment Methods 0.000 claims abstract description 22
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000006104 solid solution Substances 0.000 claims abstract description 11
- 239000007795 chemical reaction product Substances 0.000 claims abstract description 7
- UJVRJBAUJYZFIX-UHFFFAOYSA-N nitric acid;oxozirconium Chemical compound [Zr]=O.O[N+]([O-])=O.O[N+]([O-])=O UJVRJBAUJYZFIX-UHFFFAOYSA-N 0.000 claims abstract description 5
- -1 ceric nitrate Chemical class 0.000 claims abstract description 4
- 150000001785 cerium compounds Chemical class 0.000 claims abstract description 4
- ZMIGMASIKSOYAM-UHFFFAOYSA-N cerium Chemical compound [Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce] ZMIGMASIKSOYAM-UHFFFAOYSA-N 0.000 claims abstract 5
- 239000000243 solution Substances 0.000 claims description 33
- 239000007787 solid Substances 0.000 claims description 16
- 229910052727 yttrium Inorganic materials 0.000 claims description 13
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 12
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 claims description 12
- 239000002243 precursor Substances 0.000 claims description 10
- HSJPMRKMPBAUAU-UHFFFAOYSA-N cerium(3+);trinitrate Chemical compound [Ce+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O HSJPMRKMPBAUAU-UHFFFAOYSA-N 0.000 claims description 8
- 150000001875 compounds Chemical class 0.000 claims description 8
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 7
- 229910021529 ammonia Inorganic materials 0.000 claims description 6
- 239000007864 aqueous solution Substances 0.000 claims description 5
- 230000003197 catalytic effect Effects 0.000 claims description 5
- 239000007789 gas Substances 0.000 claims description 5
- 238000002485 combustion reaction Methods 0.000 claims description 4
- 230000003647 oxidation Effects 0.000 claims description 4
- 238000007254 oxidation reaction Methods 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 150000002823 nitrates Chemical class 0.000 claims description 3
- 239000000969 carrier Substances 0.000 claims description 2
- 239000013078 crystal Substances 0.000 claims description 2
- 238000001556 precipitation Methods 0.000 claims description 2
- ZXAUZSQITFJWPS-UHFFFAOYSA-J zirconium(4+);disulfate Chemical compound [Zr+4].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZXAUZSQITFJWPS-UHFFFAOYSA-J 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- HKVFISRIUUGTIB-UHFFFAOYSA-O azanium;cerium;nitrate Chemical class [NH4+].[Ce].[O-][N+]([O-])=O HKVFISRIUUGTIB-UHFFFAOYSA-O 0.000 claims 1
- 229910052742 iron Inorganic materials 0.000 claims 1
- IPCAPQRVQMIMAN-UHFFFAOYSA-L zirconyl chloride Chemical compound Cl[Zr](Cl)=O IPCAPQRVQMIMAN-UHFFFAOYSA-L 0.000 claims 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 abstract description 6
- 229910001928 zirconium oxide Inorganic materials 0.000 abstract description 6
- 238000001914 filtration Methods 0.000 abstract description 5
- 150000003755 zirconium compounds Chemical class 0.000 abstract description 3
- 229910002651 NO3 Inorganic materials 0.000 abstract description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 abstract description 2
- 239000000758 substrate Substances 0.000 abstract 1
- 239000012071 phase Substances 0.000 description 17
- 238000002441 X-ray diffraction Methods 0.000 description 10
- 238000002360 preparation method Methods 0.000 description 9
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 6
- LQCIDLXXSFUYSA-UHFFFAOYSA-N cerium(4+);tetranitrate Chemical compound [Ce+4].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O LQCIDLXXSFUYSA-UHFFFAOYSA-N 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000006386 neutralization reaction Methods 0.000 description 6
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 5
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 5
- 235000011114 ammonium hydroxide Nutrition 0.000 description 5
- 239000002585 base Substances 0.000 description 5
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 description 5
- 238000001035 drying Methods 0.000 description 5
- 229910052739 hydrogen Inorganic materials 0.000 description 5
- 239000001257 hydrogen Substances 0.000 description 5
- 150000003839 salts Chemical class 0.000 description 5
- 238000001228 spectrum Methods 0.000 description 5
- 238000003786 synthesis reaction Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 229910002064 alloy oxide Inorganic materials 0.000 description 4
- 238000006555 catalytic reaction Methods 0.000 description 4
- OERNJTNJEZOPIA-UHFFFAOYSA-N zirconium nitrate Chemical compound [Zr+4].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O OERNJTNJEZOPIA-UHFFFAOYSA-N 0.000 description 4
- 239000012467 final product Substances 0.000 description 3
- 150000002431 hydrogen Chemical class 0.000 description 3
- 239000002609 medium Substances 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000011541 reaction mixture Substances 0.000 description 3
- 241000894007 species Species 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- ITZXULOAYIAYNU-UHFFFAOYSA-N cerium(4+) Chemical compound [Ce+4] ITZXULOAYIAYNU-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000010587 phase diagram Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 239000012429 reaction media Substances 0.000 description 2
- 238000006722 reduction reaction Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- NGDQQLAVJWUYSF-UHFFFAOYSA-N 4-methyl-2-phenyl-1,3-thiazole-5-sulfonyl chloride Chemical compound S1C(S(Cl)(=O)=O)=C(C)N=C1C1=CC=CC=C1 NGDQQLAVJWUYSF-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 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 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 244000269722 Thea sinensis Species 0.000 description 1
- 229910001093 Zr alloy Inorganic materials 0.000 description 1
- 229910008337 ZrO(NO3)2.2H2O Inorganic materials 0.000 description 1
- 150000001242 acetic acid derivatives Chemical class 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000012223 aqueous fraction Substances 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- PCCNIENXBRUYFK-UHFFFAOYSA-O azanium;cerium(4+);pentanitrate Chemical class [NH4+].[Ce+4].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O PCCNIENXBRUYFK-UHFFFAOYSA-O 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000004517 catalytic hydrocracking Methods 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- RCFVMJKOEJFGTM-UHFFFAOYSA-N cerium zirconium Chemical compound [Zr].[Ce] RCFVMJKOEJFGTM-UHFFFAOYSA-N 0.000 description 1
- XQTIWNLDFPPCIU-UHFFFAOYSA-N cerium(3+) Chemical class [Ce+3] XQTIWNLDFPPCIU-UHFFFAOYSA-N 0.000 description 1
- KHSBAWXKALEJFR-UHFFFAOYSA-H cerium(3+);tricarbonate;hydrate Chemical compound O.[Ce+3].[Ce+3].[O-]C([O-])=O.[O-]C([O-])=O.[O-]C([O-])=O KHSBAWXKALEJFR-UHFFFAOYSA-H 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 210000003109 clavicle Anatomy 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000009089 cytolysis Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000006356 dehydrogenation reaction Methods 0.000 description 1
- 238000002050 diffraction method Methods 0.000 description 1
- 238000007323 disproportionation reaction Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000006317 isomerization reaction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000002211 methanization Effects 0.000 description 1
- NFSAPTWLWWYADB-UHFFFAOYSA-N n,n-dimethyl-1-phenylethane-1,2-diamine Chemical compound CN(C)C(CN)C1=CC=CC=C1 NFSAPTWLWWYADB-UHFFFAOYSA-N 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 description 1
- RUDFQVOCFDJEEF-UHFFFAOYSA-N oxygen(2-);yttrium(3+) Chemical class [O-2].[O-2].[O-2].[Y+3].[Y+3] RUDFQVOCFDJEEF-UHFFFAOYSA-N 0.000 description 1
- 239000006069 physical mixture Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000012265 solid product Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000010183 spectrum analysis Methods 0.000 description 1
- 238000000629 steam reforming Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 150000003748 yttrium compounds Chemical class 0.000 description 1
- DUNKXUFBGCUVQW-UHFFFAOYSA-J zirconium tetrachloride Chemical compound Cl[Zr](Cl)(Cl)Cl DUNKXUFBGCUVQW-UHFFFAOYSA-J 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G25/00—Compounds of zirconium
- C01G25/006—Compounds containing, besides zirconium, two or more other elements, with the exception of oxygen or hydrogen
-
- 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
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
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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
- B01J23/10—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of rare earths
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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
- 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
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- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G25/00—Compounds of zirconium
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- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G25/00—Compounds of zirconium
- C01G25/02—Oxides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/206—Rare earth metals
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/207—Transition metals
- B01D2255/20715—Zirconium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/40—Mixed oxides
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- B01J2523/00—Constitutive chemical elements of heterogeneous catalysts
- B01J2523/30—Constitutive chemical elements of heterogeneous catalysts of Group III (IIIA or IIIB) of the Periodic Table
- B01J2523/36—Yttrium
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- B01J2523/00—Constitutive chemical elements of heterogeneous catalysts
- B01J2523/30—Constitutive chemical elements of heterogeneous catalysts of Group III (IIIA or IIIB) of the Periodic Table
- B01J2523/37—Lanthanides
- B01J2523/3712—Cerium
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- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2523/00—Constitutive chemical elements of heterogeneous catalysts
- B01J2523/40—Constitutive chemical elements of heterogeneous catalysts of Group IV (IVA or IVB) of the Periodic Table
- B01J2523/48—Zirconium
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- C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
- C01P2002/72—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by d-values or two theta-values, e.g. as X-ray diagram
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- C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
- C01P2002/77—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by unit-cell parameters, atom positions or structure diagrams
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- C01P2004/00—Particle morphology
- C01P2004/80—Particles consisting of a mixture of two or more inorganic phases
- C01P2004/82—Particles consisting of a mixture of two or more inorganic phases two phases having the same anion, e.g. both oxidic phases
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- C01P2006/12—Surface area
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Claims (25)
1. Komposition baserad pä blandade oxider av cerium och zirkonium, kännetecknad av att kompositionen är i form av en 5 enskild kubformad kristallin fas av ceriumoxid dä zirkonium finns i en lösning av fast ämne i ceriumoxiden, och av att dess specifika yta är ätminstone 30 m2/g efter en 6 timmars kalcinering utförd vid 800 °C.
2. Komposition enligt patentkrav 1, kännetecknad av att kompositionens specifika yta är ätminstone 40 m2/g efter en 6 timmars kalcinering utförd vid 800 °C.
3. Komposition enligt patentkrav 1 eller 2, kännetecknad av 15 att kompositionens specifika yta är ätminstone 50 m2/g efter en 6 timmars kalcinering utförd vid 800 °C.
4. Komposition enligt vilket som heist av föregäende patentkrav, kännetecknad av att kompositionens specifika yta 20 är ätminstone 20 m2/g efter en 6 timmars kalcinering utförd .v. vid 900 °C.
• · · • · ««· ”** 5. Komposition enligt patentkrav 4, kännetecknad av att • · j ** kompositionens specifika yta är ätminstone 30 m2/g efter en • · · :.: : 25 6 timmars kalcinering utförd vid 900 °C.
·· · • · · • · • · • · · : 6. Komposition enligt vilket som heist av föregäende patentkrav, kännetecknad av att kompositionen har den :V: allmänna formeln CexZr^x02, där x är ett tai mellan 0,5-1, ;***. 30 varvid det sista värdet har lämnats utanför, dä x • · · företrädesvis är ett tai mellan 0,5-0,9. • · • » ···
7. Komposition enligt patentkrav 6, kännetecknad av att x är mellan 0,5-0,8. .’·*·. 3 5 • · • · ·
8. Komposition enligt patentkrav 6 eller 7, kännetecknad av att x är mellan 0,5-0,7.
9. Komposition enligt vilket som heist av föregäende patentkrav, kännetecknad av att kompositionen dessutom innehäller yttrium i lösningen av fast ämne. 5
10. Förfarande för att framställa en komposition enligt vilket som heist av patentkraven 1-9, kännetecknat av att förfarandet innefattar följande skeden: (i) en vattenhaltig blandning framställs, som innehäller 10 cerium och zirkonium och valbart lösliga föreningar av yttrium i mängder som motsvarar den önskade produktens stökiometriska proportioner och en enskild kubformad kristallin fas av ceriumoxid erhälls, 15 (ii) nämnda vattenhaltiga blandning termohydrolyseras genom uppvärmning tili en temperatur mellan 80-350 °C, (iii) den sälunda erhällna reaktionsprodukten ätervinns, 20 (iv) den ätervunna produkten kalcineras vid en temperatur • · mellan 200-1000 °C.
• · · • · · • · • · · ·*** 11. Förfarande enligt patentkrav 10, kännetecknat av att den • · | ]1 lösliga ceriumföreningen väljs enskilt eller i en blandning • · · i.i : 25 ur en grupp bestäende av nitrater, särskilt ceriumnitrat, och ·· · : 1.· ceriumammoniumnitrater. • · · • · · • · ·
12. Förfarande enligt patentkrav 10 eller 11, kännetecknat av att en lösning av ceriumnitrat som erhällits frän • · 30 elektrolytisk oxidering av lösningen av ceriumnitrat används.
• · · · · • · ’···[ 13. Förfarande enligt vilket som heist av patentkraven 10-12, ' 1 kännetecknat av att nämnda lösliga zirkoniumförening väljs, enskilt eller som en blandning, ur en grupp bestäende av .1··. 3 5 zirkoniumsulfat, zirkonylnitrat och zirkonylklorid. • · ·
14. Förfarande enligt vilket som heist av patentkraven 10-13, kännetecknat av att efter näxnnda uppvärmnings f as tillsätts en bas tili ett utfällningsmedium. 5
15. Förfarande enligt vilket som heist av patentkraven 10-14, kännetecknat av att den ätervunna reaktionsprodukten tvättas företrädesvis med en vattenlösning av ammoniak.
16. Förfarande enligt vilket som heist av patentkraven 10-15, 10 kännetecknat av att den ätervunna och valbart tvättade reaktionsprodukten torkas.
17. Prekursor för en komposition enligt vilket som heist av patentkraven 1-9, kännetecknad av att kompositionens 15 prekursor baserar sig pä cerium och zirkonium och att efter kalcinering som utförts vid en temperatur mellan 400-800 °C är kompositionens prekursor i form av en enskild kubformad kristallin fas av ceriumoxid, vilken innefattar zirkonium i ceriumoxidens kristallgitter. 20
18. Kompositionsprekursor enligt patentkrav 17, kännetecknad • · · ,·. av att efter kalcinering som utförts vid en temperatur mellan II** 400-800 °C har kompositionens prekursor den allmänna formeln I . CexZr1.x02, varvid x är ett tai mellan 0,5-1, dä det sista • · · 1 ··· · 25 värdet har uteslutits, varvid företrädesvis x är ett tai ·♦ · Σ .* mellan 0,5-0,9. • · · • · · •
19. Kompositionsprekursor enligt patentkrav 18, kännetecknad av att x är mellan 0,5-0,7. 30 ··· .1.
20. Kompositionsprekursor enligt vilket som heist av • ♦ *···[ patentkraven 17-19, kännetecknad av att kompositionsprekursorn innehäller yttrium, varvid yttrium !*·.. finns i lösningen av fast ärnne dä det kalcinerats vid en 35 temperatur mellan 400-800 °C.
21. Förfarande för att framställa en kompositionsprekursor enligt vilket som heist av patentkraven 17-20, kännetecknat av att förfarandet innehäller följande skeden: 5 (i) en vattenhaltig blandning framställs, som innehäller lösliga föreningar av cerium och zirkonium och valbart yttrium i mängder som motsvarar den önskade produktens stökiometriska proportioner och en enskild kubformad kristallin fas av ceriumoxid erhälls, 10 (ii) nämnda vattenhaltiga blandning termohydrolyseras genom uppvärmning tili en temperatur mellan 80-350 °C. (iii) den erhällna reaktionsprodukten ätervinns. 15
22. Användning av en komposition definierad enligt vilket som heist av patentkraven 1-9 eller 17-20 eller av en komposition erhällen med ett förfarande enligt vilket som heist av patentkraven 10-16 eller 21 vid framställning av katalyter 20 eller katalytbärare, särskilt avsedd för behandling av förbränningsmotorers avgaser.
• · · • · ··· "** 23. Katalyt, av sädan typ, att den innehäller en porös bärare • · * och katalytiskt aktiva grundämnen, kännetecknad av att nämnda • · · ··· : 25 porösa bärare innehäller aluminium i blandning med ·· · • · · ί kompositionen, vilken komposition definierats i vilket som • · · V : heist av patentkraven 1-9, eller erhällits med ett förfarande enligt vilket som heist av patentkraven 10-16. • · • · · • · · • · .*·*. 30
24. Monolitisk katalyt, innehällande en eldfast konstruktion »«« (bärare) , som fodrats med ett poröst skikt, pä vars yta har • · *♦··* lagrats katalytiskt aktiva grundämnen, kännetecknad av att • · nämnda porösa skikt innehäller aluminium i blandning med kompositionen, vilken komposition definierats i vilket som .···. 35 heist av patentkraven 1-9, eller erhällits med förfarandet • · enligt vilket som heist av patentkraven 10-16.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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FR9215376 | 1992-12-21 | ||
FR9215376A FR2699524B1 (fr) | 1992-12-21 | 1992-12-21 | Composition à base d'un oxyde mixte de cérium et de zirconium, préparation et utilisation. |
Publications (3)
Publication Number | Publication Date |
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FI935748A0 FI935748A0 (fi) | 1993-12-20 |
FI935748A FI935748A (sv) | 1994-06-22 |
FI119920B true FI119920B (sv) | 2009-05-15 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI935748A FI119920B (sv) | 1992-12-21 | 1993-12-20 | Komposition baserad på en bland-oxid av cerium och zirkonium, framställning och användning |
Country Status (13)
Country | Link |
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US (2) | US5693299A (sv) |
EP (1) | EP0605274B1 (sv) |
JP (1) | JP2947449B2 (sv) |
KR (1) | KR100304508B1 (sv) |
AT (1) | ATE179680T1 (sv) |
AU (1) | AU668236B2 (sv) |
BR (1) | BR9305146A (sv) |
CA (1) | CA2111892C (sv) |
DE (2) | DE69324785C5 (sv) |
ES (1) | ES2133372T3 (sv) |
FI (1) | FI119920B (sv) |
FR (1) | FR2699524B1 (sv) |
ZA (1) | ZA939353B (sv) |
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-
1992
- 1992-12-21 FR FR9215376A patent/FR2699524B1/fr not_active Expired - Fee Related
-
1993
- 1993-12-10 AU AU52347/93A patent/AU668236B2/en not_active Expired
- 1993-12-14 ZA ZA939353A patent/ZA939353B/xx unknown
- 1993-12-15 DE DE69324785.1T patent/DE69324785C5/de not_active Expired - Lifetime
- 1993-12-15 DE DE0605274T patent/DE605274T1/de active Pending
- 1993-12-15 ES ES93403030T patent/ES2133372T3/es not_active Expired - Lifetime
- 1993-12-15 EP EP93403030A patent/EP0605274B1/fr not_active Expired - Lifetime
- 1993-12-15 AT AT93403030T patent/ATE179680T1/de active
- 1993-12-20 FI FI935748A patent/FI119920B/sv not_active IP Right Cessation
- 1993-12-20 KR KR1019930028560A patent/KR100304508B1/ko not_active IP Right Cessation
- 1993-12-20 CA CA002111892A patent/CA2111892C/fr not_active Expired - Lifetime
- 1993-12-20 BR BR9305146A patent/BR9305146A/pt not_active IP Right Cessation
- 1993-12-21 JP JP5344750A patent/JP2947449B2/ja not_active Expired - Lifetime
-
1995
- 1995-07-07 US US08/499,663 patent/US5693299A/en not_active Expired - Lifetime
- 1995-11-30 US US08/562,491 patent/US5712218A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
ES2133372T3 (es) | 1999-09-16 |
JPH06226094A (ja) | 1994-08-16 |
EP0605274A1 (fr) | 1994-07-06 |
FR2699524B1 (fr) | 1995-02-10 |
BR9305146A (pt) | 1994-11-01 |
JP2947449B2 (ja) | 1999-09-13 |
DE69324785D1 (de) | 1999-06-10 |
FI935748A0 (fi) | 1993-12-20 |
KR100304508B1 (ko) | 2001-11-22 |
AU668236B2 (en) | 1996-04-26 |
US5712218A (en) | 1998-01-27 |
FR2699524A1 (fr) | 1994-06-24 |
KR940013602A (ko) | 1994-07-15 |
CA2111892A1 (fr) | 1994-06-22 |
US5693299A (en) | 1997-12-02 |
DE605274T1 (de) | 1998-03-26 |
ATE179680T1 (de) | 1999-05-15 |
DE69324785T2 (de) | 1999-12-02 |
DE69324785C5 (de) | 2019-10-31 |
AU5234793A (en) | 1994-06-30 |
ZA939353B (en) | 1994-09-16 |
CA2111892C (fr) | 1999-12-14 |
FI935748A (sv) | 1994-06-22 |
EP0605274B1 (fr) | 1999-05-06 |
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