US2930823A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for removing higher acetylenes from hydrocarbon mixtures
Assignee: Bayer AG
•
Filing: 1956-07-24
•
Granted: 1960-03-29
•
Expires: 1976-07-24
Abstract
No abstract record available.
Inventors
- 👤 Kronig Walter
- 👤 Scharfe Gerhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:52
CPC Classifications
C; C07; C07C; C07C7/00; C07C7/10; Y; Y10; Y10S; Y10S585/00; Y10S585/949; Y10S585/954
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
PROCESS FOR REMOVING HIGHER ACETYLENES FROM MIXTURES OF HYDROCARBONS, HAVING FROM 3 TO 6 CARBON ATOMS, CONTAINING THE SAME WHICH COMPRISES CONTACTING UNDER PRESSURE A MIXTURE OF SUCH HYDROCARBONS WITH AN AQUEOUS CUPROUS SALT SOLUTION, SUBSTANTIALLY SATURATED WITH SAID HYDROCARBONS OTHER THAN SAID ACETYLENES, TO THEREBY SELECTIVELY EXTRACT THE ACETYLENE FROM THE MIXTURE, SEPARATING SAID CUPROUS SALT SOLUTION CONTAINING THE EXTRACTED ACETYLENES, POLYMERIZING THE ACETYLENES INTO LIQUID AND SOLID POLYMERS WITHOUT SUBSTANTIAL PRESSURE RELIEF, AND THEREAFTER REMOVING SAID SOLID POLYMERS THEREBY FORMING AN EXTRACTION SOLUTION READY FOR REUSE.
Claim 2
Dependent Claim
88 words
PROCESS FOR REMOVING HIGHER ACETYLENES FROM MIXTURES OF HYDROCARBONS, HAVING FROM 3 TO 6 CARBON ATOMS, CONTAINING THE SAME WHICH COMPRISES CONTACTING UNDER PRESSURE A MIXTURE OF SUCH HYDROCARBONS WITH AN AQUEOUS CUPROUS SALT SOLUTION, SUBSTANTIALLY SATURATED WITH SAID HYDROCARBONS OTHER THAN SAID ACETYLENES, TO THEREBY SELECTIVELY EXTRACT THE ACETYLENE FROM THE MIXTURE, SEPARATING SAID CUPROUS SALT SOLUTION CONTAINING THE EXTRACTED ACETYLENES, POLYMERIZING THE ACETYLENES INTO LIQUID AND SOLID POLYMERS WITHOUT SUBSTANTIAL PRESSURE RELIEF, AND THEREAFTER REMOVING SAID SOLID POLYMERS THEREBY FORMING AN EXTRACTION SOLUTION READY FOR REUSE.
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) | 1963-03-29 | 1963-09-28 | 1964-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-29 | 1967-09-28 | 1968-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-29 | 1971-09-28 | 1972-03-29 | $7700.00 | Window Closed / Lapsed |