JP2000271443A - 排気ガス浄化用触媒の製造方法 - Google Patents
排気ガス浄化用触媒の製造方法Info
- Publication number
- JP2000271443A JP2000271443A JP11082955A JP8295599A JP2000271443A JP 2000271443 A JP2000271443 A JP 2000271443A JP 11082955 A JP11082955 A JP 11082955A JP 8295599 A JP8295599 A JP 8295599A JP 2000271443 A JP2000271443 A JP 2000271443A
- Authority
- JP
- Japan
- Prior art keywords
- solution
- metal
- catalyst
- exhaust gas
- earth metal
- 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.)
- Pending
Links
- 239000003054 catalyst Substances 0.000 title claims abstract description 86
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 238000004140 cleaning Methods 0.000 title abstract 4
- 239000011259 mixed solution Substances 0.000 claims abstract description 43
- 239000000243 solution Substances 0.000 claims abstract description 36
- 229910000510 noble metal Inorganic materials 0.000 claims abstract description 22
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims abstract description 18
- 150000001342 alkaline earth metals Chemical class 0.000 claims abstract description 18
- 229910052783 alkali metal Inorganic materials 0.000 claims abstract description 17
- 150000001340 alkali metals Chemical class 0.000 claims abstract description 17
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 17
- 150000002910 rare earth metals Chemical class 0.000 claims abstract description 16
- 239000002585 base Substances 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 14
- 229910052751 metal Inorganic materials 0.000 claims abstract description 13
- 239000002184 metal Substances 0.000 claims abstract description 13
- 239000007864 aqueous solution Substances 0.000 claims description 36
- 238000000746 purification Methods 0.000 claims description 25
- 229910002651 NO3 Inorganic materials 0.000 claims description 12
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 239000000758 substrate Substances 0.000 claims description 6
- 230000007935 neutral effect Effects 0.000 claims description 5
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims description 3
- 150000003057 platinum Chemical class 0.000 claims description 2
- 239000011230 binding agent Substances 0.000 abstract description 8
- 238000002156 mixing Methods 0.000 abstract description 4
- 230000003197 catalytic effect Effects 0.000 abstract 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 99
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 39
- 239000007789 gas Substances 0.000 description 22
- 229910052697 platinum Inorganic materials 0.000 description 16
- 238000005470 impregnation Methods 0.000 description 12
- 239000000843 powder Substances 0.000 description 12
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 description 11
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 description 11
- 239000002002 slurry Substances 0.000 description 11
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 10
- 239000010948 rhodium Substances 0.000 description 9
- 238000001035 drying Methods 0.000 description 8
- 238000011156 evaluation Methods 0.000 description 7
- SCVFZCLFOSHCOH-UHFFFAOYSA-M potassium acetate Chemical compound [K+].CC([O-])=O SCVFZCLFOSHCOH-UHFFFAOYSA-M 0.000 description 6
- 229910052788 barium Inorganic materials 0.000 description 5
- ITHZDDVSAWDQPZ-UHFFFAOYSA-L barium acetate Chemical compound [Ba+2].CC([O-])=O.CC([O-])=O ITHZDDVSAWDQPZ-UHFFFAOYSA-L 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 229910052703 rhodium Inorganic materials 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 3
- 229910021536 Zeolite Inorganic materials 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 229910017604 nitric acid Inorganic materials 0.000 description 3
- 235000011056 potassium acetate Nutrition 0.000 description 3
- 239000010457 zeolite Substances 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- IWOUKMZUPDVPGQ-UHFFFAOYSA-N barium nitrate Chemical compound [Ba+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O IWOUKMZUPDVPGQ-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 229910052878 cordierite Inorganic materials 0.000 description 2
- 230000007423 decrease Effects 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
- 238000010304 firing Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000010970 precious metal Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000005204 segregation Methods 0.000 description 2
- 238000001694 spray drying Methods 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 102100033041 Carbonic anhydrase 13 Human genes 0.000 description 1
- 102100032566 Carbonic anhydrase-related protein 10 Human genes 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- 101100321669 Fagopyrum esculentum FA02 gene Proteins 0.000 description 1
- 101000867860 Homo sapiens Carbonic anhydrase 13 Proteins 0.000 description 1
- 101000867836 Homo sapiens Carbonic anhydrase-related protein 10 Proteins 0.000 description 1
- 229910018967 Pt—Rh Inorganic materials 0.000 description 1
- 101001062854 Rattus norvegicus Fatty acid-binding protein 5 Proteins 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 159000000021 acetate salts Chemical class 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- JLRJWBUSTKIQQH-UHFFFAOYSA-K lanthanum(3+);triacetate Chemical compound [La+3].CC([O-])=O.CC([O-])=O.CC([O-])=O JLRJWBUSTKIQQH-UHFFFAOYSA-K 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- NFOHLBHARAZXFQ-UHFFFAOYSA-L platinum(2+);dihydroxide Chemical compound O[Pt]O NFOHLBHARAZXFQ-UHFFFAOYSA-L 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 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 1
- 238000005245 sintering Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Landscapes
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11082955A JP2000271443A (ja) | 1999-03-26 | 1999-03-26 | 排気ガス浄化用触媒の製造方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11082955A JP2000271443A (ja) | 1999-03-26 | 1999-03-26 | 排気ガス浄化用触媒の製造方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000271443A true JP2000271443A (ja) | 2000-10-03 |
| JP2000271443A5 JP2000271443A5 (cg-RX-API-DMAC7.html) | 2006-01-19 |
Family
ID=13788655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11082955A Pending JP2000271443A (ja) | 1999-03-26 | 1999-03-26 | 排気ガス浄化用触媒の製造方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000271443A (cg-RX-API-DMAC7.html) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007313451A (ja) * | 2006-05-26 | 2007-12-06 | Toyota Central Res & Dev Lab Inc | ディーゼル排ガス浄化用構造体、それを用いた排ガス浄化方法 |
| JP2007330864A (ja) * | 2006-06-13 | 2007-12-27 | Nissan Motor Co Ltd | 排ガス浄化用触媒及びその製造方法 |
| WO2015029382A1 (ja) * | 2013-08-28 | 2015-03-05 | マツダ株式会社 | 排気ガス浄化用触媒及びその製造方法並びにそれを用いた排気ガス浄化方法 |
| JP2015100787A (ja) * | 2013-11-28 | 2015-06-04 | マツダ株式会社 | 排気ガス浄化用触媒の製造方法 |
-
1999
- 1999-03-26 JP JP11082955A patent/JP2000271443A/ja active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007313451A (ja) * | 2006-05-26 | 2007-12-06 | Toyota Central Res & Dev Lab Inc | ディーゼル排ガス浄化用構造体、それを用いた排ガス浄化方法 |
| JP2007330864A (ja) * | 2006-06-13 | 2007-12-27 | Nissan Motor Co Ltd | 排ガス浄化用触媒及びその製造方法 |
| WO2015029382A1 (ja) * | 2013-08-28 | 2015-03-05 | マツダ株式会社 | 排気ガス浄化用触媒及びその製造方法並びにそれを用いた排気ガス浄化方法 |
| US9566573B2 (en) | 2013-08-28 | 2017-02-14 | Mazda Motor Corporation | Exhaust gas purifying catalyst, method for producing same, and exhaust gas purification method using same |
| JP2015100787A (ja) * | 2013-11-28 | 2015-06-04 | マツダ株式会社 | 排気ガス浄化用触媒の製造方法 |
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Legal Events
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| A521 | Written amendment |
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