US3629478A
Expired / Lapsed
US
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Separation of linear olefins from tertiary olefins
Assignee: Chevron USA Inc
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Filing: 1969-08-22
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Granted: 1971-12-21
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Expires: 1989-08-22
Abstract
Abstract LINEAR PENTENES ARE SEPARATED FROM TERTIARY PENTENES BY: (A) FEEDING A MIXTURE OF ALCOHOL, TERTIARY PENTENES AND LINEAR PENTENES TO A DISTILLATION COLUMN REACTOR AT A FEED ZONE; (B) CATALYTICALLY REACTING THE TERTIARY PENTENES WITH THE ALCOHOL BY CONTACTING THEM WITH HETEROGENEOUS CATALYST LOCATED IN A PLURALITY O ZONES ABOVE THE FEED ZONE, THEREBY FORMING AN ETHER; (C) FRACTIONATING THE ETHER FROM THE LINEAR PENTENE IN THE DISTILLATION COLUMN REACTOR; (D) WITHDRAWING THE ETHER FROM THE DISTILLATION COLUMN REACTOR AT A POSITION BELOW THE FEED ZONE; AND (E) WITHDRAWING THE LINEAR PENTENES FROM THE DISTILLATION COLUMN REACTOR AT A POSITION ABOVE THE FEED ZONE.
Inventors
- 👤 Willard M Haunschild
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:48
CPC Classifications
C; C07; C07C; C07C7/00; C07C7/005; B; B01; B01D; B01D3/00; B01D3/009; B01D3/14; B01D3/143; B01D3/146; B01D3/32; B01D3/322; C07C7/148; C07C7/14875; C07C7/14891; Y; Y02; Y02P; Y02P20/00; Y02P20/10; Y10; Y10S; Y10S203/00; Y10S203/06
Claims Analysis
Total Claims: 0
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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) | 1974-12-20 | 1975-06-21 | 1975-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-20 | 1979-06-21 | 1979-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-20 | 1983-06-21 | 1983-12-21 | $7700.00 | Window Closed / Lapsed |