JPS57119838A - Production of palladium catalyst - Google Patents
Production of palladium catalystInfo
- Publication number
- JPS57119838A JPS57119838A JP56005970A JP597081A JPS57119838A JP S57119838 A JPS57119838 A JP S57119838A JP 56005970 A JP56005970 A JP 56005970A JP 597081 A JP597081 A JP 597081A JP S57119838 A JPS57119838 A JP S57119838A
- Authority
- JP
- Japan
- Prior art keywords
- catalyst
- heat
- wash
- soluble salts
- acid
- 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
Landscapes
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
Abstract
PURPOSE:To produce a catalyst of a low cost and having superior activity and heat resistance for purification of waste gases by impregnating a wash-coated catalyst carrier with liquid contg. soluble salts of Pd and Ce and a hydroxycarboxylic acid then heat-treating the same. CONSTITUTION:Pd and Ce are deposited simultaneously on a wash-coated catalyst carrier by using impregnating liquid contg. soluble salts of Pd and Ce and hydroxycarboxylic acid such as glycolic acid and malic acid. Thence, after drying, this is heat-treated at 500-900 deg.C, whereby the catalyst deposited with Pd- Ce is produced. This catalyst has the superior purification performance in rendering three kinds of harmful materials CO, HC, NOx contained in exhaust gases of internal combustion engines harmless, and causes less degradation in its activity even at elevated temp.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56005970A JPS57119838A (en) | 1981-01-20 | 1981-01-20 | Production of palladium catalyst |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56005970A JPS57119838A (en) | 1981-01-20 | 1981-01-20 | Production of palladium catalyst |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57119838A true JPS57119838A (en) | 1982-07-26 |
Family
ID=11625711
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56005970A Pending JPS57119838A (en) | 1981-01-20 | 1981-01-20 | Production of palladium catalyst |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57119838A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60238147A (en) * | 1984-05-10 | 1985-11-27 | Toyota Central Res & Dev Lab Inc | Catalyst for removing nitrogen oxide |
US5064803A (en) * | 1990-08-31 | 1991-11-12 | Allied-Signal Inc. | Preparation of three-way catalysts with highly dispersed ceria |
EP0521613A2 (en) * | 1991-07-01 | 1993-01-07 | Rhone-Poulenc Inc. | Concentrated water soluble organic lanthanide salts |
US6326329B1 (en) | 1996-02-21 | 2001-12-04 | Asec Manufacturing | Highly dispersed substantially uniform mixed-metal-oxide composite supports for exhaust conversion catalysts |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4932891A (en) * | 1972-07-26 | 1974-03-26 |
-
1981
- 1981-01-20 JP JP56005970A patent/JPS57119838A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4932891A (en) * | 1972-07-26 | 1974-03-26 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60238147A (en) * | 1984-05-10 | 1985-11-27 | Toyota Central Res & Dev Lab Inc | Catalyst for removing nitrogen oxide |
US5064803A (en) * | 1990-08-31 | 1991-11-12 | Allied-Signal Inc. | Preparation of three-way catalysts with highly dispersed ceria |
EP0521613A2 (en) * | 1991-07-01 | 1993-01-07 | Rhone-Poulenc Inc. | Concentrated water soluble organic lanthanide salts |
US6326329B1 (en) | 1996-02-21 | 2001-12-04 | Asec Manufacturing | Highly dispersed substantially uniform mixed-metal-oxide composite supports for exhaust conversion catalysts |
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