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US4093703A
Expired / Lapsed
US
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Removal of ethylene from gases
Assignee: BASF SE
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Filing: 1977-01-31
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Granted: 1978-06-06
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Expires: 1997-01-31
Abstract
Abstract The removal of ethylene from gases which contain the ethylene in a concentration of not more than 1.8% by volume by means of a supported palladium catalyst which contains from 0.05 to 10 g of palladium per liter of an inert inorganic carrier, the oxidation reaction being started at a temperature of from 180° to 200° C.
Inventors
- 👤 Oskar Buechner
- 👤 Herbert Geierhaas
- 👤 Volker Gierth
- 👤 Siegfried Mueller
- 👤 Wieland Zacher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:09
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/38; B01J23/40; B01J23/44; B01D; B01D53/00; B01D53/34; B01D53/46; B01D53/72; C; C01; C01B; C01B3/00; C01B3/02; C01B3/025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
A process for the oxidative removal of ethylene from industrial exhaust air which comprises: passing said industrial exhaust air which contains ethylene in a concentration of not more than 1.8% by volume over a supported palladium catalyst containing from 0.05 to 10 g of palladium per liter of an inert inorganic carrier, said oxidation reaction being started at a temperature of from 180° to 200° C.
Claim 2
Dependent Claim
66 words
A process for the oxidative removal of ethylene from industrial exhaust air which comprises: passing said industrial exhaust air which contains ethylene in a concentration of not more than 1.8% by volume over a supported palladium catalyst containing from 0.05 to 10 g of palladium per liter of an inert inorganic carrier, said oxidation reaction being started at a temperature of from 180° to 200° C.
References Cited (Backward Citations)
US3124416A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-06-05 | 1981-12-05 | 1982-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-05 | 1985-12-05 | 1986-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-05 | 1989-12-05 | 1990-06-06 | $7700.00 | Window Closed / Lapsed |