Patent US2563686A successfully refreshed from Google Patents.
US2563686A
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Regeneration of olefins from acid solutions
Assignee: Standard Oil Development Co
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Filing: 1948-04-15
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Granted: 1951-08-07
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Expires: 1968-04-15
Abstract
No abstract record available.
Inventors
- 👤 Francis M Archibald
- 👤 Vincent F Mistretta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:18
CPC Classifications
C; C07; C07C; C07C7/00; C07C7/148; C07C7/17; C07C7/171; Y; Y10; Y10S; Y10S585/00; Y10S585/919; Y10S585/921; Y10S585/924; Y10S585/925
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
A PROCESS FOR THE REGENERATION OF A MONOOLEFIN CONTAINING 2 TO 6 CARBON ATOMS PER MOLECULE FROM AN ACID EXTRACT THEREOF WHICH COMPRISES CONTINUOUSLY PASSING THE LIQUID EXTRACT DOWNWARDLY AT A LINEAR VELOCITY OF 0.4 TO 2.0 FT./SEC. INTO ONE END OF AN EXTERNALLY HEATED NON-CYLINDRICAL DECOMPOSITION ZONE OF 3 TO 10 FEET IN LENGTH AND 1/4'''' TO 3/4'''' IN CENTRAL MINOR AXIS, MAINTAINING THE EXACT AT A SUBSTANTIALLY UNIFORM TEMPERATURE BETWEEN 130* C. AND 295* C. DURING PASSAGE THROUGH THE DECOMPOSITION ZONE WHEREBY THE ACID EXTRACT IS DECOMPOSED TO SUBSTANTIALLY A MIXTURE COMPRISING MONO-OLEFIN VAPOR, WATER VAPOR AND LIQUID ACID, CONTINUOUSLY PASSING THE TOTAL EXTRACT DECOMPOSITION PRODUCTS FROM THE OTHER END OF THE DECOMPOSITION ZONE INTO A DISENGAGING ZONE AND RAPIDLY SEPARATING AND REMOVING SAID VAPORS FROM THE LIQUID ACID IN THE DISENGAGING ZONE.
Claim 2
Dependent Claim
135 words
A PROCESS FOR THE REGENERATION OF A MONOOLEFIN CONTAINING 2 TO 6 CARBON ATOMS PER MOLECULE FROM AN ACID EXTRACT THEREOF WHICH COMPRISES CONTINUOUSLY PASSING THE LIQUID EXTRACT DOWNWARDLY AT A LINEAR VELOCITY OF 0.4 TO 2.0 FT./SEC. INTO ONE END OF AN EXTERNALLY HEATED NON-CYLINDRICAL DECOMPOSITION ZONE OF 3 TO 10 FEET IN LENGTH AND 1/4'''' TO 3/4'''' IN CENTRAL MINOR AXIS, MAINTAINING THE EXACT AT A SUBSTANTIALLY UNIFORM TEMPERATURE BETWEEN 130* C. AND 295* C. DURING PASSAGE THROUGH THE DECOMPOSITION ZONE WHEREBY THE ACID EXTRACT IS DECOMPOSED TO SUBSTANTIALLY A MIXTURE COMPRISING MONO-OLEFIN VAPOR, WATER VAPOR AND LIQUID ACID, CONTINUOUSLY PASSING THE TOTAL EXTRACT DECOMPOSITION PRODUCTS FROM THE OTHER END OF THE DECOMPOSITION ZONE INTO A DISENGAGING ZONE AND RAPIDLY SEPARATING AND REMOVING SAID VAPORS FROM THE LIQUID ACID IN THE DISENGAGING ZONE.
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) | 1954-08-06 | 1955-02-05 | 1955-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-06 | 1959-02-05 | 1959-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-06 | 1963-02-05 | 1963-08-07 | $7700.00 | Window Closed / Lapsed |