KR20180137533A - 세륨- 및 지르코늄-기재 혼합 산화물 - Google Patents
세륨- 및 지르코늄-기재 혼합 산화물 Download PDFInfo
- Publication number
- KR20180137533A KR20180137533A KR1020187033678A KR20187033678A KR20180137533A KR 20180137533 A KR20180137533 A KR 20180137533A KR 1020187033678 A KR1020187033678 A KR 1020187033678A KR 20187033678 A KR20187033678 A KR 20187033678A KR 20180137533 A KR20180137533 A KR 20180137533A
- Authority
- KR
- South Korea
- Prior art keywords
- oxide
- cerium
- mixed oxide
- lanthanum
- mixed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- RCFVMJKOEJFGTM-UHFFFAOYSA-N cerium zirconium Chemical compound [Zr].[Ce] RCFVMJKOEJFGTM-UHFFFAOYSA-N 0.000 title 1
- 229910052684 Cerium Inorganic materials 0.000 claims abstract description 53
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims abstract description 50
- 229910052746 lanthanum Inorganic materials 0.000 claims abstract description 43
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 claims abstract description 40
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims abstract description 27
- 238000000034 method Methods 0.000 claims abstract description 27
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 26
- 239000011148 porous material Substances 0.000 claims description 58
- 238000001354 calcination Methods 0.000 claims description 48
- 239000000203 mixture Substances 0.000 claims description 48
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 48
- 150000002910 rare earth metals Chemical class 0.000 claims description 48
- 239000000725 suspension Substances 0.000 claims description 47
- 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 41
- 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 claims description 34
- 239000002244 precipitate Substances 0.000 claims description 30
- 239000007864 aqueous solution Substances 0.000 claims description 27
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims description 23
- 238000003756 stirring Methods 0.000 claims description 23
- 229910000420 cerium oxide Inorganic materials 0.000 claims description 18
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims description 18
- 229910052727 yttrium Inorganic materials 0.000 claims description 18
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 claims description 18
- 229910002651 NO3 Inorganic materials 0.000 claims description 17
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 17
- 239000007789 gas Substances 0.000 claims description 16
- 229910052735 hafnium Inorganic materials 0.000 claims description 16
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 claims description 15
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 15
- 229910052753 mercury Inorganic materials 0.000 claims description 15
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 15
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 claims description 14
- FYDKNKUEBJQCCN-UHFFFAOYSA-N lanthanum(3+);trinitrate Chemical compound [La+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O FYDKNKUEBJQCCN-UHFFFAOYSA-N 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 13
- 239000011247 coating layer Substances 0.000 claims description 12
- 229910052777 Praseodymium Inorganic materials 0.000 claims description 9
- 238000002459 porosimetry Methods 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims description 9
- 230000003197 catalytic effect Effects 0.000 claims description 8
- PUDIUYLPXJFUGB-UHFFFAOYSA-N praseodymium atom Chemical compound [Pr] PUDIUYLPXJFUGB-UHFFFAOYSA-N 0.000 claims description 8
- 229910052779 Neodymium Inorganic materials 0.000 claims description 7
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 7
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 7
- 239000011707 mineral Substances 0.000 claims description 7
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 claims description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 238000005406 washing Methods 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 229910000449 hafnium oxide Inorganic materials 0.000 claims description 5
- WIHZLLGSGQNAGK-UHFFFAOYSA-N hafnium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Hf+4] WIHZLLGSGQNAGK-UHFFFAOYSA-N 0.000 claims description 5
- 238000005259 measurement Methods 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 5
- 238000002485 combustion reaction Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000000470 constituent Substances 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 3
- 150000004679 hydroxides Chemical class 0.000 claims description 3
- 229910052718 tin Inorganic materials 0.000 claims description 3
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 2
- 229910006404 SnO 2 Inorganic materials 0.000 claims description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 2
- 229910021536 Zeolite Inorganic materials 0.000 claims description 2
- CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical compound [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 claims description 2
- ILRRQNADMUWWFW-UHFFFAOYSA-K aluminium phosphate Chemical compound O1[Al]2OP1(=O)O2 ILRRQNADMUWWFW-UHFFFAOYSA-K 0.000 claims description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 229910021419 crystalline silicon Inorganic materials 0.000 claims description 2
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 2
- 238000001914 filtration Methods 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 229910052596 spinel Inorganic materials 0.000 claims description 2
- 239000011029 spinel Substances 0.000 claims description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 2
- 239000010457 zeolite Substances 0.000 claims description 2
- 238000000227 grinding Methods 0.000 claims 1
- 238000002360 preparation method Methods 0.000 abstract description 7
- 238000006555 catalytic reaction Methods 0.000 abstract description 4
- 229910001404 rare earth metal oxide Inorganic materials 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 52
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 21
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 21
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 21
- 235000011114 ammonium hydroxide Nutrition 0.000 description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 19
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 14
- 239000000047 product Substances 0.000 description 13
- 229910021193 La 2 O 3 Inorganic materials 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 11
- 239000003054 catalyst Substances 0.000 description 10
- 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 8
- 229910000510 noble metal Inorganic materials 0.000 description 8
- 150000003839 salts Chemical class 0.000 description 8
- 239000005639 Lauric acid Substances 0.000 description 7
- 229910052739 hydrogen Inorganic materials 0.000 description 7
- 239000002609 medium Substances 0.000 description 7
- 239000002253 acid Substances 0.000 description 6
- 229910021529 ammonia Inorganic materials 0.000 description 6
- 150000001768 cations Chemical class 0.000 description 6
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 6
- -1 sarcosinates Chemical class 0.000 description 6
- 239000004094 surface-active agent Substances 0.000 description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 5
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 5
- 150000007514 bases Chemical class 0.000 description 5
- 239000012153 distilled water Substances 0.000 description 5
- 239000001257 hydrogen Substances 0.000 description 5
- 229910017604 nitric acid Inorganic materials 0.000 description 5
- 239000010935 stainless steel Substances 0.000 description 5
- 229910001220 stainless steel Inorganic materials 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 4
- 230000032683 aging Effects 0.000 description 4
- 229910002091 carbon monoxide Inorganic materials 0.000 description 4
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 150000002191 fatty alcohols Chemical class 0.000 description 4
- 239000000706 filtrate Substances 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 description 4
- 239000011541 reaction mixture Substances 0.000 description 4
- 239000010948 rhodium Substances 0.000 description 4
- 229920006395 saturated elastomer Polymers 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-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
- 150000001412 amines Chemical group 0.000 description 3
- 238000005266 casting Methods 0.000 description 3
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 3
- 230000001747 exhibiting effect Effects 0.000 description 3
- 239000012452 mother liquor Substances 0.000 description 3
- 230000001590 oxidative effect Effects 0.000 description 3
- 229910052703 rhodium Inorganic materials 0.000 description 3
- VXNYVYJABGOSBX-UHFFFAOYSA-N rhodium(3+);trinitrate Chemical compound [Rh+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O VXNYVYJABGOSBX-UHFFFAOYSA-N 0.000 description 3
- 239000012265 solid product Substances 0.000 description 3
- 239000007858 starting material Substances 0.000 description 3
- FERIUCNNQQJTOY-UHFFFAOYSA-N Butyric acid Chemical compound CCCC(O)=O FERIUCNNQQJTOY-UHFFFAOYSA-N 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 229910017493 Nd 2 O 3 Inorganic materials 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 150000001340 alkali metals Chemical class 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 125000003636 chemical group Chemical group 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 229910052878 cordierite Inorganic materials 0.000 description 2
- GHVNFZFCNZKVNT-UHFFFAOYSA-N decanoic acid Chemical compound CCCCCCCCCC(O)=O GHVNFZFCNZKVNT-UHFFFAOYSA-N 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000011067 equilibration Methods 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- IPCSVZSSVZVIGE-UHFFFAOYSA-N hexadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(O)=O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 description 2
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- LELOWRISYMNNSU-UHFFFAOYSA-N hydrogen cyanide Chemical compound N#C LELOWRISYMNNSU-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 2
- 238000001095 inductively coupled plasma mass spectrometry Methods 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- KQNPFQTWMSNSAP-UHFFFAOYSA-N isobutyric acid Chemical compound CC(C)C(O)=O KQNPFQTWMSNSAP-UHFFFAOYSA-N 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- BDJRBEYXGGNYIS-UHFFFAOYSA-N nonanedioic acid Chemical compound OC(=O)CCCCCCCC(O)=O BDJRBEYXGGNYIS-UHFFFAOYSA-N 0.000 description 2
- 239000002736 nonionic surfactant Substances 0.000 description 2
- WWZKQHOCKIZLMA-UHFFFAOYSA-N octanoic acid Chemical compound CCCCCCCC(O)=O WWZKQHOCKIZLMA-UHFFFAOYSA-N 0.000 description 2
- 238000011022 operating instruction Methods 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229910052763 palladium Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- WLJVNTCWHIRURA-UHFFFAOYSA-N pimelic acid Chemical compound OC(=O)CCCCCC(O)=O WLJVNTCWHIRURA-UHFFFAOYSA-N 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- TYFQFVWCELRYAO-UHFFFAOYSA-N suberic acid Chemical compound OC(=O)CCCCCCC(O)=O TYFQFVWCELRYAO-UHFFFAOYSA-N 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 2
- 229910001887 tin oxide Inorganic materials 0.000 description 2
- ZSDSQXJSNMTJDA-UHFFFAOYSA-N trifluralin Chemical compound CCCN(CCC)C1=C([N+]([O-])=O)C=C(C(F)(F)F)C=C1[N+]([O-])=O ZSDSQXJSNMTJDA-UHFFFAOYSA-N 0.000 description 2
- NQPDZGIKBAWPEJ-UHFFFAOYSA-N valeric acid Chemical compound CCCCC(O)=O NQPDZGIKBAWPEJ-UHFFFAOYSA-N 0.000 description 2
- 150000003755 zirconium compounds Chemical class 0.000 description 2
- XJUNLJFOHNHSAR-UHFFFAOYSA-J zirconium(4+);dicarbonate Chemical compound [Zr+4].[O-]C([O-])=O.[O-]C([O-])=O XJUNLJFOHNHSAR-UHFFFAOYSA-J 0.000 description 2
- JNYAEWCLZODPBN-JGWLITMVSA-N (2r,3r,4s)-2-[(1r)-1,2-dihydroxyethyl]oxolane-3,4-diol Chemical class OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O JNYAEWCLZODPBN-JGWLITMVSA-N 0.000 description 1
- IVORCBKUUYGUOL-UHFFFAOYSA-N 1-ethynyl-2,4-dimethoxybenzene Chemical compound COC1=CC=C(C#C)C(OC)=C1 IVORCBKUUYGUOL-UHFFFAOYSA-N 0.000 description 1
- RTBFRGCFXZNCOE-UHFFFAOYSA-N 1-methylsulfonylpiperidin-4-one Chemical compound CS(=O)(=O)N1CCC(=O)CC1 RTBFRGCFXZNCOE-UHFFFAOYSA-N 0.000 description 1
- TWJNQYPJQDRXPH-UHFFFAOYSA-N 2-cyanobenzohydrazide Chemical compound NNC(=O)C1=CC=CC=C1C#N TWJNQYPJQDRXPH-UHFFFAOYSA-N 0.000 description 1
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- 238000004438 BET method Methods 0.000 description 1
- 239000005632 Capric acid (CAS 334-48-5) Substances 0.000 description 1
- 239000005635 Caprylic acid (CAS 124-07-2) Substances 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- 229910000604 Ferrochrome Inorganic materials 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
- 235000021360 Myristic acid Nutrition 0.000 description 1
- TUNFSRHWOTWDNC-UHFFFAOYSA-N Myristic acid Natural products CCCCCCCCCCCCCC(O)=O TUNFSRHWOTWDNC-UHFFFAOYSA-N 0.000 description 1
- 235000021314 Palmitic acid Nutrition 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 235000011054 acetic acid Nutrition 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 229910001860 alkaline earth metal hydroxide Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 150000003973 alkyl amines Chemical class 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229940056585 ammonium laurate Drugs 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- JFCQEDHGNNZCLN-UHFFFAOYSA-N anhydrous glutaric acid Natural products OC(=O)CCCC(O)=O JFCQEDHGNNZCLN-UHFFFAOYSA-N 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- VJCJAQSLASCYAW-UHFFFAOYSA-N azane;dodecanoic acid Chemical compound [NH4+].CCCCCCCCCCCC([O-])=O VJCJAQSLASCYAW-UHFFFAOYSA-N 0.000 description 1
- OSYLPIYJUCCMTQ-UHFFFAOYSA-O azanium;cerium(3+);nitrate Chemical compound [NH4+].[Ce+3].[O-][N+]([O-])=O OSYLPIYJUCCMTQ-UHFFFAOYSA-O 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 239000003637 basic solution Substances 0.000 description 1
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000004320 controlled atmosphere Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 238000007306 functionalization reaction Methods 0.000 description 1
- 229910001938 gadolinium oxide Inorganic materials 0.000 description 1
- 229940075613 gadolinium oxide Drugs 0.000 description 1
- CMIHHWBVHJVIGI-UHFFFAOYSA-N gadolinium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[Gd+3].[Gd+3] CMIHHWBVHJVIGI-UHFFFAOYSA-N 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000010907 mechanical stirring Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- CQDGTJPVBWZJAZ-UHFFFAOYSA-N monoethyl carbonate Chemical class CCOC(O)=O CQDGTJPVBWZJAZ-UHFFFAOYSA-N 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- WQEPLUUGTLDZJY-UHFFFAOYSA-N n-Pentadecanoic acid Natural products CCCCCCCCCCCCCCC(O)=O WQEPLUUGTLDZJY-UHFFFAOYSA-N 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- UJVRJBAUJYZFIX-UHFFFAOYSA-N nitric acid;oxozirconium Chemical compound [Zr]=O.O[N+]([O-])=O.O[N+]([O-])=O UJVRJBAUJYZFIX-UHFFFAOYSA-N 0.000 description 1
- 229960002446 octanoic acid Drugs 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 150000003014 phosphoric acid esters Chemical class 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- 239000010453 quartz Substances 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
- 239000002516 radical scavenger Substances 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 235000003441 saturated fatty acids Nutrition 0.000 description 1
- 150000004671 saturated fatty acids Chemical class 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 239000011550 stock solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 229940005605 valeric acid Drugs 0.000 description 1
- 238000004876 x-ray fluorescence Methods 0.000 description 1
- 150000003754 zirconium Chemical class 0.000 description 1
Images
Classifications
-
- 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 zirconium, with or without oxygen or hydrogen, and containing two or more other elements
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G25/00—Compounds of zirconium
- C01G25/02—Oxides
-
- 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
- B01D53/9445—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC]
- B01D53/945—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC] characterised by a specific catalyst
-
- 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
-
- 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
- B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
- B01J21/066—Zirconium or hafnium; Oxides or hydroxides thereof
-
- 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
- B01J23/10—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of rare earths
-
- 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
- B01J23/14—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of germanium, tin or lead
-
- 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
- B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
- B01J23/46—Ruthenium, rhodium, osmium or iridium
- B01J23/464—Rhodium
-
- B01J35/023—
-
- B01J35/1014—
-
- 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
- B01J35/40—Catalysts, in general, characterised by their form or physical properties characterised by dimensions, e.g. grain size
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
- B01J35/61—Surface area
- B01J35/613—10-100 m2/g
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
- B01J35/64—Pore diameter
- B01J35/647—2-50 nm
-
- 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
- B01J35/64—Pore diameter
- B01J35/651—50-500 nm
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
- B01J35/66—Pore distribution
- B01J35/69—Pore distribution bimodal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/0009—Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
- B01J37/0018—Addition of a binding agent or of material, later completely removed among others as result of heat treatment, leaching or washing,(e.g. forming of pores; protective layer, desintegrating by heat)
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/0009—Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
- B01J37/0027—Powdering
- B01J37/0036—Grinding
-
- 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
- B01J37/009—Preparation by separation, e.g. by filtration, decantation, screening
-
- 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
- B01J37/0215—Coating
-
- 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
- B01J37/03—Precipitation; Co-precipitation
- B01J37/031—Precipitation
-
- 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
- B01J37/03—Precipitation; Co-precipitation
- B01J37/038—Precipitation; Co-precipitation to form slurries or suspensions, e.g. a washcoat
-
- 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
- B01J37/04—Mixing
-
- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/08—Heat treatment
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F17/00—Compounds of rare earth metals
- C01F17/30—Compounds containing rare earth metals and at least one element other than a rare earth metal, oxygen or hydrogen, e.g. La4S3Br6
- C01F17/32—Compounds containing rare earth metals and at least one element other than a rare earth metal, oxygen or hydrogen, e.g. La4S3Br6 oxide or hydroxide being the only anion, e.g. NaCeO2 or MgxCayEuO
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
-
- 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
- B01D2255/2061—Yttrium
-
- 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
- B01D2255/2065—Cerium
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/209—Other metals
- B01D2255/2094—Tin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/40—Mixed oxides
- B01D2255/407—Zr-Ce mixed oxides
-
- 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
- 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
- B01J2523/3706—Lanthanum
-
- 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
- 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
-
- 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
- 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
-
- 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
- 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
- B01J2523/49—Hafnium
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/50—Solid solutions
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/51—Particles with a specific particle size distribution
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/80—Particles consisting of a mixture of two or more inorganic phases
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/12—Surface area
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/12—Surface area
- C01P2006/13—Surface area thermal stability thereof at high temperatures
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/14—Pore volume
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/16—Pore diameter
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/16—Pore diameter
- C01P2006/17—Pore diameter distribution
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2370/00—Selection of materials for exhaust purification
- F01N2370/02—Selection of materials for exhaust purification used in catalytic reactors
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Combustion & Propulsion (AREA)
- Health & Medical Sciences (AREA)
- Inorganic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Toxicology (AREA)
- Analytical Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Biomedical Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Catalysts (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Nanotechnology (AREA)
- Exhaust Gas After Treatment (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
Description
Claims (27)
- 지르코늄, 세륨, 란탄, 및 선택적으로 세륨 및 란탄 이외의 적어도 하나의 희토류 금속(REM)의 혼합 산화물로서,
혼합 산화물의 총 중량에 대해 산화물 당량으로서 표시된 이들 원소의 중량 비율은 하기와 같으며:
세륨 8% 내지 45%;
란탄 1% 내지 10%;
세륨 및 란탄 이외의 희토류 금속 0% 내지 15%;
지르코늄 잔부,
혼합 산화물은,
1100℃의 온도에서 4시간 동안 하소된 후, 적어도 30 m2/g의 BET 비표면적;
1000℃의 온도에서 4시간 동안 하소된 후, 적어도 55 m2/g의 BET 비표면적
을 나타내고;
1100℃의 온도에서 4시간 동안 하소된 후의 혼합 산화물에 대한 수은 다공도 측정(mercury porosimetry)에 의해 구한 미분 곡선(dV/dlogD)은 직경이 200 nm 이하인 기공들의 범위에서 피크를 나타내며, 피크의 최대치는 24 내지 34 nm의 기공 직경(Dp,1100℃/4 h로 표시됨)에 상응하고, V와 D는 각각 기공 부피와 기공 직경을 나타내는 것을 특징으로 하는 혼합 산화물. - 제1항에 있어서, 하프늄을 또한 포함하는 것을 특징으로 하는, 혼합 산화물.
- 제1항 또는 제2항에 있어서, 혼합 산화물 내의 하프늄의 중량 비율은 혼합 산화물의 총 중량에 대해 산화물 당량으로서 표시될 때 2.5% 이하, 실제로 심지어는 2.0% 이하인 것을 특징으로 하는, 혼합 산화물.
- 제1항 내지 제3항 중 어느 한 항에 있어서, 원소 Ce, La, REM, Zr 및 Hf는 산화물, 수산화물 또는 옥시수산화물 형태로, 보다 구체적으로는 산화물 형태로 존재하는 것을 특징으로 하는, 혼합 산화물.
- 지르코늄 산화물, 세륨 산화물, 란탄 산화물, 선택적으로 세륨 및 란탄 이외의 적어도 하나의 희토류 금속(REM)의 산화물, 및 선택적으로 하프늄 산화물의 혼합물로 이루어진 혼합 산화물로서,
상기 산화물의 중량 비율은 하기와 같으며:
세륨 산화물 8% 내지 45%;
란탄 산화물 1% 내지 10%;
세륨 및 란탄 이외의 적어도 하나의 희토류 금속의 산화물 0% 내지 15%;
하프늄 산화물 0% 내지 2.5%;
지르코늄 산화물 잔부,
혼합 산화물은,
1100℃의 온도에서 4시간 동안 하소된 후, 적어도 30 m2/g의 BET 비표면적;
1000℃의 온도에서 4시간 동안 하소된 후, 적어도 55 m2/g의 BET 비표면적
을 나타내고;
1100℃의 온도에서 4시간 동안 하소된 후의 혼합 산화물에 대한 수은 다공도 측정에 의해 구한 미분 곡선(dV/dlogD)은 직경이 200 nm 이하인 기공들의 범위에서 피크를 나타내며, 피크의 최대치는 24 내지 34 nm의 기공 직경 Dp,1100℃/4 h에 상응하고, V와 D는 각각 기공 부피와 기공 직경을 나타내는 것을 특징으로 하는, 혼합 산화물. - 제1항 내지 제5항 중 어느 한 항에 있어서, 하기 원소들로 이루어진 것인, 혼합 산화물:
- 지르코늄 및 선택적으로 하프늄, 세륨, 란탄, 이트륨; 또는
- 지르코늄 및 선택적으로 하프늄, 세륨, 란탄, 이트륨, 네오디뮴; 또는
- 지르코늄 및 선택적으로 하프늄, 세륨, 란탄, 이트륨, 프라세오디뮴; 또는
- 지르코늄 및 선택적으로 하프늄, 세륨, 란탄. - 제1항 내지 제7항 중 어느 한 항에 있어서, SnO2 산화물 형태의 주석을, 혼합 산화물의 총 중량에 대해 산화물 당량으로서, 엄격하게는 1.0% 미만, 실제로 심지어는 0.01% 미만의 중량 비율로 포함하는 것인, 혼합 산화물.
- 제1항 내지 제8항 중 어느 한 항에 있어서, 산소를 제외하면, 지르코늄의 산화물 당량으로서의 중량 비율이 혼합 산화물의 다른 구성 원소 각각의 산화물 당량으로서의 중량 비율보다 더 큰 것을 특징으로 하는, 혼합 산화물.
- 제1항 내지 제8항 중 어느 한 항에 있어서, 산화물 당량으로서 표시된 지르코늄의 중량 비율은 40% 내지 91%일 수 있는 것을 특징으로 하는, 혼합 산화물.
- 제1항 내지 제10항 중 어느 한 항에 있어서, 세륨 및 란탄 이외의 희토류 금속은 이트륨, 네오디뮴 또는 프라세오디뮴으로부터 선택되는 것을 특징으로 하는, 혼합 산화물.
- 제1항 내지 제10항 중 어느 한 항에 있어서, 세륨 및 란탄 이외의 희토류 금속을 포함하지 않는 것인, 혼합 산화물.
- 제1항 내지 제10항 중 어느 한 항에 있어서, 세륨 및 란탄 이외의 희토류 금속으로서 이트륨만을 포함하는 것인, 혼합 산화물.
- 제1항 내지 제10항 중 어느 한 항에 있어서, 세륨 및 란탄 이외에 단지 2가지 희토류 금속만을 포함하며, 여기서 2가지 희토류 금속은 이트륨과 네오디뮴 또는 아니면 이트륨과 프라세오디뮴일 수 있는 것인, 혼합 산화물.
- 제1항 내지 제14항 중 어느 한 항에 있어서, 기공 직경 Dp,1100℃/4 h는 24 nm 내지 30 nm(여기서, 상한치는 제외됨)인 것을 특징으로 하는, 혼합 산화물.
- 제1항 내지 제15항 중 어느 한 항에 있어서, 900℃의 온도에서 4시간 동안 하소된 후의 혼합 산화물에 대한 수은 다공도 측정에 의해 구한 미분 곡선(dV/dlogD)은 직경이 200 nm 이하인 기공들의 범위에서 피크를 나타내며, 여기서 피크의 최대치는 기공 직경 Dp,900℃/4 h에 상응하고, 피크는 Dp,1100℃/4 h - Dp, 900℃/4 h의 절대값 차이가 15 nm 이하, 실제로 심지어는 10 nm 이하가 되도록 하는 것을 특징으로 하는, 혼합 산화물.
- 제1항 내지 제16항 중 어느 한 항에 있어서, 900℃의 온도에서 4시간 동안 하소된 후, 적어도 60 m2/g의 BET 비표면적을 나타내는 것인, 혼합 산화물.
- 분말 형태로 제공되고, 부피 분포에 걸쳐 레이저 회절에 의해 결정된 평균 직경 d50이 0.5 내지 50.0 μm인 혼합 산화물.
- 제1항 내지 제18항 중 어느 한 항에 있어서, 900℃의 온도에서 4시간 동안 하소된 후의 혼합 산화물에 대해 수은 다공도 측정에 의해 구한 미분 곡선(dV/dlogD)이 2개의 구별되는 피크를 나타내지 않는 것을 특징으로 하는, 혼합 산화물.
- 하기 단계를 포함하는, 제1항 내지 제19항 중 어느 한 항에 청구된 혼합 산화물의 제조 방법:
- (a1) 질산세륨 및 질산지르코늄의 수용액을 염기성 수용액이 담긴 교반 용기(stirred vessel) 내로 도입하는 단계;
- (a2) 후속으로, 질산란탄, 및 혼합 산화물에 선택적으로 존재하는 희토류 금속(REM)의 질산염의 수용액을, 교반 상태로 유지된, 단계 (a1)에서 형성된 혼합물 내로 도입하는 단계;
- (a3) 단계 (a2)의 종료 시점에서 수득된 현탁액을 교반하면서 가열하는 단계;
- (a4) 후속으로, 주형제(templating agent)를 이전 단계에서 수득된 현탁액 내로 도입하는 단계;
- (a5) 선택적으로, 현탁액을 여과하고, 침전물을 세척하는 단계;
- (a6) 단계 (a5)의 종료 시점에서 수득된 침전물을 700℃ 내지 1100℃의 온도에서 하소하여 혼합 산화물을 수득하는 단계;
- (a7) 단계 (a6)에서 수득된 혼합 산화물을 선택적으로 그라인딩하는 단계. - 제20항의 방법에 의해 수득될 수 있는 혼합 산화물.
- 제1항 내지 제19항 중 어느 한 항에 청구된 또는 제20항에 청구된 혼합 산화물을 적어도 하나의 광물질과의 혼합물로서 포함하는 조성물.
- 제22항에 있어서, 광물질은 알루미나, 산화티타늄, 산화세륨, 산화지르코늄, 실리카, 스피넬, 제올라이트, 규산염, 결정질 인산규소알루미늄 또는 결정질 인산알루미늄으로부터 선택되는 것인, 조성물.
- 제1항 내지 제19항 중 어느 한 항에 또는 제21항에 기재된 혼합 산화물로부터 또는 제22항 또는 제23항에 청구된 조성물로부터 제조되고, 고체 지지체의 표면에 침착된 촉매 활성 코팅 층.
- 제24항에 청구된 코팅 층을 포함하는, 자동차 배기 가스를 처리하기 위한 촉매 변환기.
- 촉매 변환기의 제조에 있어서, 제1항 내지 제19항 중 어느 한 항에 청구된 또는 제21항에 청구된 혼합 산화물 또는 제22항 또는 제23항에 청구된 조성물의 용도.
- 내연 엔진으로부터 배기 가스를 처리하는 방법으로서,
제24항에 청구된 코팅 층을 포함하는 촉매 변환기를 사용하는 것을 특징으로 하는 방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020227007178A KR102489849B1 (ko) | 2016-04-26 | 2017-04-25 | 세륨- 및 지르코늄-기재 혼합 산화물 |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1653698A FR3050450A1 (fr) | 2016-04-26 | 2016-04-26 | Oxyde mixte a base de cerium et de zirconium |
FR1653698 | 2016-04-26 | ||
PCT/FR2017/050984 WO2017187085A1 (fr) | 2016-04-26 | 2017-04-25 | Oxyde mixte a base de cérium et de zirconium |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020227007178A Division KR102489849B1 (ko) | 2016-04-26 | 2017-04-25 | 세륨- 및 지르코늄-기재 혼합 산화물 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20180137533A true KR20180137533A (ko) | 2018-12-27 |
KR102371855B1 KR102371855B1 (ko) | 2022-03-17 |
Family
ID=56787525
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020227007178A Active KR102489849B1 (ko) | 2016-04-26 | 2017-04-25 | 세륨- 및 지르코늄-기재 혼합 산화물 |
KR1020187033678A Active KR102371855B1 (ko) | 2016-04-26 | 2017-04-25 | 세륨- 및 지르코늄-기재 혼합 산화물 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020227007178A Active KR102489849B1 (ko) | 2016-04-26 | 2017-04-25 | 세륨- 및 지르코늄-기재 혼합 산화물 |
Country Status (13)
Country | Link |
---|---|
US (1) | US11547982B2 (ko) |
EP (1) | EP3448812A1 (ko) |
JP (1) | JP6941624B2 (ko) |
KR (2) | KR102489849B1 (ko) |
CN (2) | CN114715935B (ko) |
BR (1) | BR112018071988B1 (ko) |
CA (1) | CA3022375A1 (ko) |
FR (1) | FR3050450A1 (ko) |
MX (1) | MX2018013011A (ko) |
MY (1) | MY193970A (ko) |
RU (1) | RU2753046C2 (ko) |
WO (1) | WO2017187085A1 (ko) |
ZA (1) | ZA201807143B (ko) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020061723A1 (en) * | 2018-09-24 | 2020-04-02 | Rhodia Operations | Mixed oxide with improved reducibility |
CN109569649B (zh) * | 2018-11-14 | 2022-03-29 | 中国神华能源股份有限公司 | 烟气脱硝催化剂及其制备方法和应用 |
JP7532392B2 (ja) | 2019-03-03 | 2024-08-13 | ローディア オペレーションズ | 高い細孔容積を有する混合酸化物 |
WO2021012107A1 (en) * | 2019-07-19 | 2021-01-28 | Rhodia Operations | Mixed oxide based on cerium and zirconium |
WO2021063900A1 (en) * | 2019-10-01 | 2021-04-08 | Rhodia Operations | Suspension of nanoparticles of a mixed oxide |
WO2021161108A1 (en) * | 2020-02-14 | 2021-08-19 | Neo Performance Materials (Singapore) Pte. Ltd. | Process for making cerium and zirconium containing compositions using mesitylene and composition made by same |
JP7178526B1 (ja) | 2022-06-06 | 2022-11-25 | 第一稀元素化学工業株式会社 | 多孔質ジルコニア系複合酸化物、及び、多孔質ジルコニア系複合酸化物の製造方法 |
CN120019031A (zh) * | 2022-08-12 | 2025-05-16 | 罗地亚经营管理公司 | 铈基和锆基混合氧化物 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2044999A1 (en) * | 2007-10-01 | 2009-04-08 | Mazda Motor Corporation | Particulate Filter |
JP2013525255A (ja) * | 2010-05-06 | 2013-06-20 | ロデイア・オペラシヨン | ジルコニウム、セリウムおよび少なくとも1種の他の希土類の酸化物を含み、特定の多孔度を有する組成物、それを調製する方法、および触媒作用におけるその使用 |
JP2015189655A (ja) * | 2014-03-28 | 2015-11-02 | 第一稀元素化学工業株式会社 | ジルコニア系多孔質体及びその製造方法 |
WO2016037059A1 (en) * | 2014-09-05 | 2016-03-10 | Molycorp Minerals, Llc | High porosity cerium and zirconium containing oxide |
Family Cites Families (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2570087B1 (fr) | 1984-09-13 | 1986-11-21 | Rhone Poulenc Spec Chim | Procede d'oxydation electrolytique et ensemble d'electrolyse pour sa mise en oeuvre |
US6506705B2 (en) * | 1996-12-06 | 2003-01-14 | Rhodia Chimie | Composition based on cerium oxide or on cerium and zirconium oxides, in the extruded form, process for the preparation thereof and use thereof as catalyst |
JP4053623B2 (ja) | 1996-12-27 | 2008-02-27 | 阿南化成株式会社 | ジルコニウム−セリウム系複合酸化物及びその製造方法 |
AU6876098A (en) * | 1997-04-04 | 1998-10-30 | Rhoda Inc | Cerium oxides, zirconium oxides, ce/zr mixed oxides and ce/zr solid solutions having improved thermal stability and oxygen storage capacity |
US6528451B2 (en) * | 2001-03-13 | 2003-03-04 | W.R. Grace & Co.-Conn. | Catalyst support material having high oxygen storage capacity and method of preparation thereof |
JP3946982B2 (ja) | 2001-11-01 | 2007-07-18 | ニッケイ・メル株式会社 | ジルコニア・セリア基複合酸化物の製造方法 |
FR2841547B1 (fr) | 2002-06-26 | 2005-05-06 | Rhodia Elect & Catalysis | Composition a base d'oxyde de zirconium et d'oxydes de cerium, de lanthane et d'une autre terre rare, son procede de preparation et son utilisation comme catalyseur |
CN1264606C (zh) * | 2003-12-12 | 2006-07-19 | 天津化工研究设计院 | 一种铈基稀土复合氧化物材料的制法及用途 |
US7374729B2 (en) | 2004-03-30 | 2008-05-20 | Basf Catalysts Llc | Exhaust gas treatment catalyst |
JP4660135B2 (ja) | 2004-07-26 | 2011-03-30 | 第一稀元素化学工業株式会社 | ジルコニア系多孔質体及びその製造方法 |
FR2897609B1 (fr) * | 2006-02-17 | 2009-01-16 | Rhodia Recherches & Tech | Composition a base d'oxydes de zirconium, de cerium, d'yttrium, de lanthane et d'une autre terre rare, procede de preparation et utilisation en catalyse |
PL1991354T3 (pl) | 2006-02-17 | 2020-12-14 | Rhodia Operations | Kompozycja na bazie tlenków cyrkonu, ceru, itru, lantanu i innych metali ziem rzadkich, sposób otrzymywania i zastosowanie w katalizie |
WO2007131901A1 (fr) * | 2006-05-15 | 2007-11-22 | Rhodia Operations | Composition a base d'oxydes de zirconium, de cerium, de lanthane et d'yttrium, de gadolinium ou de samarium, a surface specifique et reductibilite elevees, procede de preparation et utilisation comme catalyseur |
EP1894620B2 (en) | 2006-08-22 | 2023-06-07 | Daiichi Kigenso Kagaku Kogyo Co., Ltd. | Method to produce a porous zirconia powder |
FR2930456B1 (fr) | 2008-04-23 | 2010-11-19 | Rhodia Operations | Composition a base d'oxydes de zirconium, de cerium et d'yttrium, a reductibilite elevee, procedes de preparation et utilisation en catalyse |
FR2936718B1 (fr) * | 2008-10-03 | 2010-11-19 | Rhodia Operations | Procede de decomposition du n2o utilisant un catalyseur a base d'un oxyde de cerium et de lanthane. |
FR2948116B1 (fr) * | 2009-07-17 | 2012-05-04 | Rhodia Operations | Composition a base d'oxyde de cerium et d'oxyde de zirconium de porosite specifique, procede de preparation et utilisation en catalyse |
FR2955098B1 (fr) * | 2010-01-11 | 2014-09-05 | Rhodia Operations | Composition a base d'oxydes de zirconium, de cerium et d'une autre terre rare a temperature maximale de reductibilite reduite, procede de preparation et utilisation dans le domaine de la catalyse. |
FR2967993B1 (fr) * | 2010-11-30 | 2018-04-06 | Rhodia Operations | Composition a base d'oxyde de zirconium et d'au moins un oxyde d'une terre rare autre que le cerium, a porosite specifique, ses procedes de preparation et son utilisation en catalyse |
FR2976574B1 (fr) * | 2011-06-17 | 2013-05-31 | Rhodia Operations | Composition a base d'oxydes de cerium, de zirconium et d'une autre terre rare a reductibilite elevee, procede de preparation et utilisation dans le domaine de la catalyse. |
WO2014121813A1 (en) | 2013-02-05 | 2014-08-14 | Rhodia Operations | Precipitated and calcinated composition based on zirconium oxide and cerium oxide |
CN103191712B (zh) * | 2013-04-03 | 2014-12-31 | 潮州三环(集团)股份有限公司 | 一种具有良好抗老化性能、高还原活性的氧化铈氧化锆基复合稀土氧化物及其制备方法 |
EP2868369B1 (en) * | 2013-11-01 | 2016-05-25 | Umicore AG & Co. KG | In-line rotor-stator disperser and method |
-
2016
- 2016-04-26 FR FR1653698A patent/FR3050450A1/fr active Pending
-
2017
- 2017-04-25 JP JP2018555561A patent/JP6941624B2/ja active Active
- 2017-04-25 MX MX2018013011A patent/MX2018013011A/es unknown
- 2017-04-25 CN CN202210364051.7A patent/CN114715935B/zh active Active
- 2017-04-25 WO PCT/FR2017/050984 patent/WO2017187085A1/fr active Application Filing
- 2017-04-25 US US16/096,280 patent/US11547982B2/en active Active
- 2017-04-25 CA CA3022375A patent/CA3022375A1/fr active Pending
- 2017-04-25 EP EP17725667.4A patent/EP3448812A1/fr active Pending
- 2017-04-25 MY MYPI2018703940A patent/MY193970A/en unknown
- 2017-04-25 CN CN201780026255.7A patent/CN109071260B/zh active Active
- 2017-04-25 KR KR1020227007178A patent/KR102489849B1/ko active Active
- 2017-04-25 KR KR1020187033678A patent/KR102371855B1/ko active Active
- 2017-04-25 BR BR112018071988-9A patent/BR112018071988B1/pt active IP Right Grant
- 2017-04-25 RU RU2018141236A patent/RU2753046C2/ru active
-
2018
- 2018-10-25 ZA ZA2018/07143A patent/ZA201807143B/en unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2044999A1 (en) * | 2007-10-01 | 2009-04-08 | Mazda Motor Corporation | Particulate Filter |
JP2013525255A (ja) * | 2010-05-06 | 2013-06-20 | ロデイア・オペラシヨン | ジルコニウム、セリウムおよび少なくとも1種の他の希土類の酸化物を含み、特定の多孔度を有する組成物、それを調製する方法、および触媒作用におけるその使用 |
JP2015189655A (ja) * | 2014-03-28 | 2015-11-02 | 第一稀元素化学工業株式会社 | ジルコニア系多孔質体及びその製造方法 |
WO2016037059A1 (en) * | 2014-09-05 | 2016-03-10 | Molycorp Minerals, Llc | High porosity cerium and zirconium containing oxide |
Also Published As
Publication number | Publication date |
---|---|
FR3050450A1 (fr) | 2017-10-27 |
BR112018071988B1 (pt) | 2023-03-21 |
US11547982B2 (en) | 2023-01-10 |
BR112018071988A2 (pt) | 2019-02-12 |
JP2019521937A (ja) | 2019-08-08 |
EP3448812A1 (fr) | 2019-03-06 |
CN109071260A (zh) | 2018-12-21 |
WO2017187085A1 (fr) | 2017-11-02 |
CN114715935A (zh) | 2022-07-08 |
RU2753046C2 (ru) | 2021-08-11 |
MY193970A (en) | 2022-11-03 |
KR102371855B1 (ko) | 2022-03-17 |
RU2018141236A (ru) | 2020-05-26 |
KR20220035503A (ko) | 2022-03-22 |
MX2018013011A (es) | 2019-01-31 |
CN109071260B (zh) | 2022-04-29 |
JP6941624B2 (ja) | 2021-09-29 |
ZA201807143B (en) | 2020-12-23 |
RU2018141236A3 (ko) | 2020-07-24 |
CA3022375A1 (fr) | 2017-11-02 |
CN114715935B (zh) | 2025-02-11 |
US20190168188A1 (en) | 2019-06-06 |
KR102489849B1 (ko) | 2023-01-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR102489849B1 (ko) | 세륨- 및 지르코늄-기재 혼합 산화물 | |
JP5746756B2 (ja) | ジルコニウム、セリウムおよび少なくとも1種の他の希土類の酸化物を含み、特定の多孔度を有する組成物、それを調製する方法、および触媒作用におけるその使用 | |
RU2404855C2 (ru) | Композиция на основе оксидов циркония, церия, лантана и иттрия, гадолиния или самария, с высокой удельной поверхностью и способностью к восстановлению, способ получения и применение в качестве катализатора | |
JP5391059B2 (ja) | 高い還元性および安定な比表面積を有する、酸化ジルコニウムおよび酸化セリウムに基づく組成物、調製方法、ならびに排気ガスの処理における使用 | |
RU2707888C1 (ru) | Смешанные оксиды на основе церия и циркония | |
KR101316986B1 (ko) | 지르코늄, 세륨 및 이트륨 산화물을 함유하는 촉매 조성물, 및 배기 가스 처리에서의 그의 용도 | |
JP5148268B2 (ja) | ジルコニウム及びイットリウムをベースとする組成物、その製造方法並びに触媒系におけるその使用 | |
RU2570810C2 (ru) | Композиция на основе оксида циркония и по меньшей мере одного оксида редкоземельного элемента, отличного от церия, с конкретной пористостью, способы ее получения и ее применение в катализаторах | |
US20120035048A1 (en) | Composition Based on Zirconium Oxides, Praseodymium, Lanthanum or Neodymium, Method for the Preparation and Use Thereof in a Catalytic System | |
JP2020514217A (ja) | セリウム、ジルコニウム、アルミニウム及びランタンから製造される自動車用触媒コンバーターのための耐老化性混合酸化物 | |
KR102512232B1 (ko) | 향상된 저항성 및 NOx 저장 용량을 갖는 혼합 산화물 | |
JP7506664B2 (ja) | 還元性が改善された混合酸化物 | |
JP7532392B2 (ja) | 高い細孔容積を有する混合酸化物 | |
KR20240114742A (ko) | 알루미늄 및 지르코늄-기재 혼합 산화물 | |
EP4157797A1 (en) | Aluminium and zirconium-based mixed oxide |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PA0105 | International application |
Patent event date: 20181121 Patent event code: PA01051R01D Comment text: International Patent Application |
|
PG1501 | Laying open of application | ||
PA0201 | Request for examination |
Patent event code: PA02012R01D Patent event date: 20200325 Comment text: Request for Examination of Application |
|
E902 | Notification of reason for refusal | ||
PE0902 | Notice of grounds for rejection |
Comment text: Notification of reason for refusal Patent event date: 20210610 Patent event code: PE09021S01D |
|
E701 | Decision to grant or registration of patent right | ||
PE0701 | Decision of registration |
Patent event code: PE07011S01D Comment text: Decision to Grant Registration Patent event date: 20211202 |
|
PA0104 | Divisional application for international application |
Comment text: Divisional Application for International Patent Patent event code: PA01041R01D Patent event date: 20220303 |
|
PR0701 | Registration of establishment |
Comment text: Registration of Establishment Patent event date: 20220303 Patent event code: PR07011E01D |
|
PR1002 | Payment of registration fee |
Payment date: 20220304 End annual number: 3 Start annual number: 1 |
|
PG1601 | Publication of registration | ||
PR1001 | Payment of annual fee |
Payment date: 20250220 Start annual number: 4 End annual number: 4 |