JPH0334367B2 - - Google Patents
Info
- Publication number
- JPH0334367B2 JPH0334367B2 JP59279766A JP27976684A JPH0334367B2 JP H0334367 B2 JPH0334367 B2 JP H0334367B2 JP 59279766 A JP59279766 A JP 59279766A JP 27976684 A JP27976684 A JP 27976684A JP H0334367 B2 JPH0334367 B2 JP H0334367B2
- Authority
- JP
- Japan
- Prior art keywords
- powder
- platinum
- catalyst
- amount
- rhodium
- 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.)
- Expired - Lifetime
Links
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 84
- 239000000843 powder Substances 0.000 claims description 52
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 50
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 46
- 239000003054 catalyst Substances 0.000 claims description 45
- 229910052697 platinum Inorganic materials 0.000 claims description 42
- 229910052684 Cerium Inorganic materials 0.000 claims description 31
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims description 31
- 239000010948 rhodium Substances 0.000 claims description 27
- 229910052703 rhodium Inorganic materials 0.000 claims description 26
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 claims description 25
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 claims description 23
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 claims description 23
- 229910052751 metal Inorganic materials 0.000 claims description 20
- 239000002184 metal Substances 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 14
- 239000011248 coating agent Substances 0.000 claims description 13
- 238000000576 coating method Methods 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 239000010970 precious metal Substances 0.000 claims description 6
- 230000000052 comparative effect Effects 0.000 description 26
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 22
- 239000007864 aqueous solution Substances 0.000 description 14
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 13
- 229910052763 palladium Inorganic materials 0.000 description 11
- 239000007789 gas Substances 0.000 description 10
- 239000002253 acid Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 229910002091 carbon monoxide Inorganic materials 0.000 description 6
- 229930195733 hydrocarbon Natural products 0.000 description 6
- 150000002430 hydrocarbons Chemical class 0.000 description 6
- 229910000510 noble metal Inorganic materials 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- 238000000746 purification Methods 0.000 description 6
- 238000002156 mixing Methods 0.000 description 4
- PIBWKRNGBLPSSY-UHFFFAOYSA-L palladium(II) chloride Chemical compound Cl[Pd]Cl PIBWKRNGBLPSSY-UHFFFAOYSA-L 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 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 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 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 2
- SONJTKJMTWTJCT-UHFFFAOYSA-K rhodium(iii) chloride Chemical compound [Cl-].[Cl-].[Cl-].[Rh+3] SONJTKJMTWTJCT-UHFFFAOYSA-K 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- FCUFAHVIZMPWGD-UHFFFAOYSA-N [O-][N+](=O)[Pt](N)(N)[N+]([O-])=O Chemical compound [O-][N+](=O)[Pt](N)(N)[N+]([O-])=O FCUFAHVIZMPWGD-UHFFFAOYSA-N 0.000 description 1
- VXAUWWUXCIMFIM-UHFFFAOYSA-M aluminum;oxygen(2-);hydroxide Chemical compound [OH-].[O-2].[Al+3] VXAUWWUXCIMFIM-UHFFFAOYSA-M 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 229910000420 cerium oxide Inorganic materials 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Landscapes
- Catalysts (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59279766A JPS61157347A (ja) | 1984-12-28 | 1984-12-28 | 排ガス浄化用触媒の製造方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59279766A JPS61157347A (ja) | 1984-12-28 | 1984-12-28 | 排ガス浄化用触媒の製造方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61157347A JPS61157347A (ja) | 1986-07-17 |
| JPH0334367B2 true JPH0334367B2 (enrdf_load_stackoverflow) | 1991-05-22 |
Family
ID=17615604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59279766A Granted JPS61157347A (ja) | 1984-12-28 | 1984-12-28 | 排ガス浄化用触媒の製造方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61157347A (enrdf_load_stackoverflow) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0675675B2 (ja) * | 1986-11-04 | 1994-09-28 | トヨタ自動車株式会社 | 排気ガス浄化用触媒 |
| US5015617A (en) * | 1988-04-14 | 1991-05-14 | Nippon Shokubai Kagaku Kogyo Co., Ltd. | Catalyst for purifying exhaust gas and method for production thereof |
| US5137703A (en) * | 1989-06-26 | 1992-08-11 | Trustees Of Boston University | Thermal catalytic methods for converting oxides of nitrogen into environmentally compatible products |
-
1984
- 1984-12-28 JP JP59279766A patent/JPS61157347A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61157347A (ja) | 1986-07-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0215253B2 (enrdf_load_stackoverflow) | ||
| JP2979809B2 (ja) | 排ガス浄化用触媒及びその製造方法 | |
| JP3185448B2 (ja) | 排気ガス浄化用触媒 | |
| JPH04219140A (ja) | 分離した白金及びロジウム成分を含有する触媒組成物 | |
| JP3251010B2 (ja) | セリア含有ジルコニア支持体を含む三方転化触媒 | |
| JPH05237390A (ja) | 排気ガス浄化用触媒 | |
| JPH01139144A (ja) | 排気浄化用触媒 | |
| JPS59127649A (ja) | 排気ガス浄化用触媒 | |
| JPH0699069A (ja) | 排気ガス浄化用触媒 | |
| JPH06378A (ja) | 排ガス浄化用触媒 | |
| JPH0451864Y2 (enrdf_load_stackoverflow) | ||
| JPH0334367B2 (enrdf_load_stackoverflow) | ||
| JP3362532B2 (ja) | 排ガス浄化用触媒及びその製造方法 | |
| JP3505739B2 (ja) | 排ガス浄化用触媒 | |
| JPS61293550A (ja) | 排ガス浄化用触媒 | |
| JP4776206B2 (ja) | 自動車排気ガス用の白金−ロジウム触媒 | |
| JPS61209045A (ja) | 排ガス浄化用触媒 | |
| JPH10216514A (ja) | 排ガス浄化用触媒 | |
| JP2948232B2 (ja) | 排気ガス浄化用触媒 | |
| JP3426792B2 (ja) | 排気ガス浄化用触媒 | |
| JPS6054730A (ja) | 排ガス浄化用触媒 | |
| JPS6320036A (ja) | 排ガス浄化用触媒の製造方法 | |
| JPH1190235A (ja) | ディーゼルエンジン排ガス浄化用触媒及び浄化方法 | |
| JPH06190282A (ja) | 排気ガス浄化用触媒 | |
| JP2672996B2 (ja) | 排ガス浄化用白金―パラジウム―ロジウム触媒の製造方法 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |