Patent US2851504A successfully refreshed from Google Patents.
US2851504A
Expired / Lapsed
US
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Selective removal of acetylene from olefin and/or diolefin containing hydrocarbon streams
Assignee: Phillips Petroleum Co
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Filing: 1954-09-03
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Granted: 1958-09-09
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Expires: 1974-09-03
Abstract
No abstract record available.
Inventors
- 👤 Hogan John Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:14
CPC Classifications
C; C07; C07C; C07C7/00; C07C7/148; C07C7/163; C07C7/167
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
IN A PROCESS FOR THE SELECTIVE REMOVAL OF AN ACETYLENE FROM A MIXTURE OF GASES CONTAINING IN ADDITION TO SAID ACETYLENE OTHER UNSATURATED GASES, IN WHICH PROSESS SAID MIXTURE OF GASES IS CONTACTED WITH AN ALKALIZED IRON OXIDECHROMIUM OXIDE CATALYST UNDER HYDROGENATION REACTION CONDITIONS IN THE PRESENCE OF A MOLECULAR EXCESS OF HYDROGEN OVER THAT REQUIRED TO HYDROGENATE SAID ACETYLENE, THE METHOD OF INCREASING THE SELECTIVITY OF SAID CATALYST FOR SELECTIVE REMOVAL OF SAID ACETYLENE WHICH COMPRISES CARRYING OUT SAID CONTACTING IN THE PRESENCE OF WATER VAPOR.
Claim 2
Dependent Claim
87 words
IN A PROCESS FOR THE SELECTIVE REMOVAL OF AN ACETYLENE FROM A MIXTURE OF GASES CONTAINING IN ADDITION TO SAID ACETYLENE OTHER UNSATURATED GASES, IN WHICH PROSESS SAID MIXTURE OF GASES IS CONTACTED WITH AN ALKALIZED IRON OXIDECHROMIUM OXIDE CATALYST UNDER HYDROGENATION REACTION CONDITIONS IN THE PRESENCE OF A MOLECULAR EXCESS OF HYDROGEN OVER THAT REQUIRED TO HYDROGENATE SAID ACETYLENE, THE METHOD OF INCREASING THE SELECTIVITY OF SAID CATALYST FOR SELECTIVE REMOVAL OF SAID ACETYLENE WHICH COMPRISES CARRYING OUT SAID CONTACTING IN THE PRESENCE OF WATER VAPOR.
References Cited (Backward Citations)
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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) | 1961-09-08 | 1962-03-10 | 1962-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-08 | 1966-03-10 | 1966-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-08 | 1970-03-10 | 1970-09-09 | $7700.00 | Window Closed / Lapsed |