US2773560A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separation of acetylene compounds
Assignee: Fluor Corp
•
Filing: 1953-05-18
•
Granted: 1956-12-11
•
Expires: 1973-05-18
Abstract
No abstract record available.
Inventors
- 👤 Arthur L Kohl
- 👤 Fred C Riesenfeld
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 03:13
CPC Classifications
C; C07; C07C; C07C7/00; C07C7/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
THE PROCESS OF SEPARATELY RECOVERING ACETYLENE-CONTAINING AND METHYL ACETYLENE-CONTAINING GASES FROM A GASEOUS MIXTURE THEREOF CONTAINING OTHER GASEOUS CONSTITUENTS, THAT COMPRISES CONTACTING SAID MIXTURE IN AN ABSORPTION ZONE WITH AN ALKALY ETHER OF DIETHYLENE GLYCOL ABSORBENT IN WHICH THE ALKYL RADICAL IS OF THE CLASS CONSISTING OF ALKY GROUPS WITHIN THE 1 TO 4 CARBON ATOM RANGE AND ABSORBING ACETYLENE AND METHYL ACETYLENE THEREIN, SAID ABSORBENT HAVING A BOILING TEMPERATURE IN EXCESS OF 175* C., PASSING THE ABSORBENT INTO A FIRST STRIPPING ZONE AND THEREIN SEPARATING THE BULK OF THE ACETYLENE FROM THE ABSORBENT, AND PASSING THE RESIDUAL ABSORBENT INTO A SECOND ZONE AND THEREIN SEPARATING THE BULK OF THE METHYL ACETYLENE FROM THE ABSORBENT.
Claim 2
Dependent Claim
115 words
THE PROCESS OF SEPARATELY RECOVERING ACETYLENE-CONTAINING AND METHYL ACETYLENE-CONTAINING GASES FROM A GASEOUS MIXTURE THEREOF CONTAINING OTHER GASEOUS CONSTITUENTS, THAT COMPRISES CONTACTING SAID MIXTURE IN AN ABSORPTION ZONE WITH AN ALKALY ETHER OF DIETHYLENE GLYCOL ABSORBENT IN WHICH THE ALKYL RADICAL IS OF THE CLASS CONSISTING OF ALKY GROUPS WITHIN THE 1 TO 4 CARBON ATOM RANGE AND ABSORBING ACETYLENE AND METHYL ACETYLENE THEREIN, SAID ABSORBENT HAVING A BOILING TEMPERATURE IN EXCESS OF 175* C., PASSING THE ABSORBENT INTO A FIRST STRIPPING ZONE AND THEREIN SEPARATING THE BULK OF THE ACETYLENE FROM THE ABSORBENT, AND PASSING THE RESIDUAL ABSORBENT INTO A SECOND ZONE AND THEREIN SEPARATING THE BULK OF THE METHYL ACETYLENE FROM THE ABSORBENT.
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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) | 1959-12-11 | 1960-06-11 | 1960-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-11 | 1964-06-11 | 1964-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-11 | 1968-06-11 | 1968-12-11 | $7700.00 | Window Closed / Lapsed |