US2909578A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrogenation of acetylene
Assignee: Engelhard Industries Inc
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Filing: 1957-04-26
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Granted: 1959-10-20
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Expires: 1977-04-26
Abstract
No abstract record available.
Inventors
- 👤 Holger C Andersen
- 👤 Jr Alfred J Haley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:37
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/38; B01J23/40; B01J23/44; C; C07; C07C; C07C5/00; C07C5/02; C07C5/08; B01J37/00; B01J37/02; B01J37/03; C07C2521/00; C07C2521/02; C07C2521/04; C07C2523/00; C07C2523/38; C07C2523/40; C07C2523/44
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
29 words
A CATALYST FOR THE SELECTIVE HYDROGENATION OF ACETYLENE COMPRISING PALLADIUM METAL SUPPORTED ON ACTIVATED ALUMINA, THE PALLADIUM METAL CONSTITUTING ABOUT 0.00001 TO 0.0014 PERCENT OF THE TOTAL CATALYST WEIGHT.
Claim 2
Dependent Claim
29 words
A CATALYST FOR THE SELECTIVE HYDROGENATION OF ACETYLENE COMPRISING PALLADIUM METAL SUPPORTED ON ACTIVATED ALUMINA, THE PALLADIUM METAL CONSTITUTING ABOUT 0.00001 TO 0.0014 PERCENT OF THE TOTAL CATALYST WEIGHT.
Claim 3
Dependent Claim
53 words
A PROCESS FOR SELECTIVELY HYDROGENATING ACETYLENE IN A GASEOUS MXTURE CONTAINING SATURATED AND UNSATURATED HYDROCARBONS AND HYDROGEN WHICH COMPRISES PASSING THE GASEOUS MIXTURE AT ELEVATED TEMPERATURE AND PRESSURE CONDITIONS OVER A CATALYST COMPRISING PALLADIUM METAL SUPPORTED ON ACTIVATED ALUMINA, THE PALLADIUM METAL CONSTITUTING ABOUT 0.0001 TO 0.0014 PERCENT OF THE TOTAL CATALYST WEIGHT.
Claim 4
Dependent Claim
53 words
A PROCESS FOR SELECTIVELY HYDROGENATING ACETYLENE IN A GASEOUS MXTURE CONTAINING SATURATED AND UNSATURATED HYDROCARBONS AND HYDROGEN WHICH COMPRISES PASSING THE GASEOUS MIXTURE AT ELEVATED TEMPERATURE AND PRESSURE CONDITIONS OVER A CATALYST COMPRISING PALLADIUM METAL SUPPORTED ON ACTIVATED ALUMINA, THE PALLADIUM METAL CONSTITUTING ABOUT 0.0001 TO 0.0014 PERCENT OF THE TOTAL CATALYST WEIGHT.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-19 | 1963-04-20 | 1963-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-19 | 1967-04-20 | 1967-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-19 | 1971-04-20 | 1971-10-20 | $7700.00 | Window Closed / Lapsed |