Patent US3301913A successfully refreshed from Google Patents.
US3301913A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrogenation process
Assignee: BP PLC
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Filing: 1964-03-19
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Granted: 1967-01-31
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Expires: 1984-03-19
Abstract
No abstract record available.
Inventors
- 👤 Holmes Peter Desmond
- 👤 Pitkethly Robert Chalmers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:02
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/74; B01J23/755; C; C07; C07C; C07C5/00; C07C5/02; C07C5/08; G; G08; G08B; G08B5/00; G08B5/006; G08B5/22; G08B5/36; G08B5/38; B01J37/00; B01J37/02; B01J37/0201; C07C2523/00; C07C2523/70; C07C2523/74; C07C2523/755
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
A PROCESS FOR SELECTIVELY HYDROGENATING THE ACETYLENES IN A HYDROCARBON FEEDSTOCK CONTAINING A MOLAR PROPORTION OF DIENES IN EXCESS OF 50 MOL PERCENT AND A MINOR MOLAR PROPORTION OF ACETYLENES WHICHC COMPRISES, CONTACTING SAID FEEDSTOCK WITH A SUPPORTED CATALYST CONTAINING NICKEL WHICH, UNDER THE OPERATING CONDITONS, IS PRESENT IN MAJOR PROPORTION AS ELEMENTAL NICKEL, SAID CATALYST HAVING BEEN PREVIOUSLY MODIFIED BY TREATMENT WITH AT LEAST ONE SULPHUR-CONTAINING COMPOUND SELECTED FROM THE GROUP CONSISTING OF THIOPHENES, THIACYCLOALKANES HAVING AT LEAST FOUR CARBON ATOMS PER RING, AND DIALKYLMONOSULPHIDES, SAID TREATMENT BEING CARRIED OUT UNDER CONDITIONS SUCH THAT A MINOR PROPORTION OF THE NICKEL PRESENT IN THE CATALYST IS THERBY COMBINED WITH SULPHUR, THE HYDROGENATION BEING CARRIED OUT AT A HYDROGENATION TEMPERATURE OF FROM 100* TO 130*C., AND RECOVERING A PRODUCT IN WHICH AT LEAST A MAJOR PROPORTION OF THE ACETYLENES HAVE BEEN SELECTIVELY HYDROGENATED AND NOT MORE THAN A MINOR PROPORTION OF THE DIENES HAS BEEN HYDROGENATED.
Claim 2
Dependent Claim
155 words
A PROCESS FOR SELECTIVELY HYDROGENATING THE ACETYLENES IN A HYDROCARBON FEEDSTOCK CONTAINING A MOLAR PROPORTION OF DIENES IN EXCESS OF 50 MOL PERCENT AND A MINOR MOLAR PROPORTION OF ACETYLENES WHICHC COMPRISES, CONTACTING SAID FEEDSTOCK WITH A SUPPORTED CATALYST CONTAINING NICKEL WHICH, UNDER THE OPERATING CONDITONS, IS PRESENT IN MAJOR PROPORTION AS ELEMENTAL NICKEL, SAID CATALYST HAVING BEEN PREVIOUSLY MODIFIED BY TREATMENT WITH AT LEAST ONE SULPHUR-CONTAINING COMPOUND SELECTED FROM THE GROUP CONSISTING OF THIOPHENES, THIACYCLOALKANES HAVING AT LEAST FOUR CARBON ATOMS PER RING, AND DIALKYLMONOSULPHIDES, SAID TREATMENT BEING CARRIED OUT UNDER CONDITIONS SUCH THAT A MINOR PROPORTION OF THE NICKEL PRESENT IN THE CATALYST IS THERBY COMBINED WITH SULPHUR, THE HYDROGENATION BEING CARRIED OUT AT A HYDROGENATION TEMPERATURE OF FROM 100* TO 130*C., AND RECOVERING A PRODUCT IN WHICH AT LEAST A MAJOR PROPORTION OF THE ACETYLENES HAVE BEEN SELECTIVELY HYDROGENATED AND NOT MORE THAN A MINOR PROPORTION OF THE DIENES HAS BEEN HYDROGENATED.
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) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |