Patent US2775634A successfully refreshed from Google Patents.
US2775634A
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Removal of acetylene from olefins by selective hydrogenation
Assignee: Phillips Petroleum Co
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Filing: 1953-06-22
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Granted: 1956-12-25
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Expires: 1973-06-22
Abstract
No abstract record available.
Inventors
- 👤 Nowlin Gene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:51
CPC Classifications
C; C07; C07C; C07C7/00; C07C7/148; C07C7/163; C07C7/167
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A SELECTIVE REMOVAL OF AN ACETYLENE FROM GASES CONTAINING THE SAME TOGETHER WITH OTHER GASES WHICH ARE CAPABLE OF HYDROGENATION, IN WHICH THE UNSATURATED COMPONENT INCLUDES SUBSTANTIALLY ONLY MONOOLEFINS, WHICH COMPRISES UNDER HYDROGENATION CONDITIONS PASSING SAID GASES CONTAINING HYDROGEN OVER A CATALYST OBTAINED BY REDUCING IN THE PRESENCE OF HYDROGEN IRON OXIDE PROMOTED WITH A SUITABLE ALKALIZING AGENT AND CHROMIUM OXIDE.
Claim 2
Dependent Claim
61 words
A SELECTIVE REMOVAL OF AN ACETYLENE FROM GASES CONTAINING THE SAME TOGETHER WITH OTHER GASES WHICH ARE CAPABLE OF HYDROGENATION, IN WHICH THE UNSATURATED COMPONENT INCLUDES SUBSTANTIALLY ONLY MONOOLEFINS, WHICH COMPRISES UNDER HYDROGENATION CONDITIONS PASSING SAID GASES CONTAINING HYDROGEN OVER A CATALYST OBTAINED BY REDUCING IN THE PRESENCE OF HYDROGEN IRON OXIDE PROMOTED WITH A SUITABLE ALKALIZING AGENT AND CHROMIUM OXIDE.
References Cited (Backward Citations)
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US2359759A
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US2378969A
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US2413254A
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US2426604A
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US2451327A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-25 | 1960-06-25 | 1960-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-25 | 1964-06-25 | 1964-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-25 | 1968-06-25 | 1968-12-25 | $7700.00 | Window Closed / Lapsed |