GB948946A - Process for improving the activity of solid oxidation catalysts - Google Patents
Process for improving the activity of solid oxidation catalystsInfo
- Publication number
- GB948946A GB948946A GB1232761A GB1232761A GB948946A GB 948946 A GB948946 A GB 948946A GB 1232761 A GB1232761 A GB 1232761A GB 1232761 A GB1232761 A GB 1232761A GB 948946 A GB948946 A GB 948946A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lead
- hydrogen halide
- al2o3
- sio2
- oxidation catalyst
- 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
Links
Classifications
-
- 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
- B01J37/22—Halogenating
-
- 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
- B01J23/90—Regeneration or reactivation
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Catalysts (AREA)
Abstract
A leaded hydrocarbon fuel the exhaust from which deactivates an oxidation catalyst contained in an exhaust system until deposition thereon of 5-50% of lead is admixed with a haloalkane and subsequently decomposed in an I.C. engine to yield the corresponding hydrogen halide, the haloalkane being used in such quantity that after reaction of lead with a portion of the hydrogen halide during the exhaust gas oxidation treatment, at least 2 mols. of free hydrogen halide remain per mol. of lead halide in the treated exhaust gases. Specified haloalkanes are methyl, ethyl, propyl, butyl chlorides, bromides and iodides, ethylene, propylene, butylene, dichlorides and dibromides, chloroform, trichloroethylene and carbon tetrachloride.ALSO:An oxidation catalyst contaminated by 5-50% by weight of lead is contacted with gaseous hydrogen halide at a temperature between 260 and 1095 DEG C., and a portion of the lead is volatized from the catalyst by reaction with the hydrogen halide. The oxidation catalyst may be supported on Al2O3, TiO2, SiO2, Al2O3-SiO2, Al2O3-ZrO2 Al2O3-SiO2-ZrO2, B2O3 or HfO2. Metals which may be loaded on to such supports include V, Cr, Mo, W, Fe, Co, Ni, Pt, Pd, Os, Rh, Ru, Ir, Cu, Ag, and Au.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US2080560A | 1960-04-08 | 1960-04-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB948946A true GB948946A (en) | 1964-02-05 |
Family
ID=21800668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1232761A Expired GB948946A (en) | 1960-04-08 | 1961-04-06 | Process for improving the activity of solid oxidation catalysts |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB948946A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110327929A (en) * | 2019-06-17 | 2019-10-15 | 齐利华(武汉)资源环境科技有限公司 | A kind of cobalt aluminum hydrotalcite Derived Mixed Oxides and the preparation method and application thereof |
-
1961
- 1961-04-06 GB GB1232761A patent/GB948946A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110327929A (en) * | 2019-06-17 | 2019-10-15 | 齐利华(武汉)资源环境科技有限公司 | A kind of cobalt aluminum hydrotalcite Derived Mixed Oxides and the preparation method and application thereof |
| CN110327929B (en) * | 2019-06-17 | 2022-09-06 | 齐利华(武汉)资源环境科技有限公司 | Cobalt-aluminum hydrotalcite derived composite oxide and preparation method and application thereof |
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