US3660520A
Expired / Lapsed
US
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Integrated oxydehydrogenation and alkylation process
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1970-02-18
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Granted: 1972-05-02
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Expires: 1990-02-18
Abstract
Abstract A SATURATED C3-C4 HYDROCARBON FEED IS DEHYDROGENATED WITH AN OXYGEN-CONTAINING GAS AND A FLUIDIZED CATALYST, SUCH AS, BISMUTH PHOSPHATE ON ACTIVATED ALUMINA, VANADIUM OXIDE OR BISMUTH OXIDE, TO FORM C3 AND C4 MONO OLEFINS. THE OLEFIN FRACTION IS THAN ALKAYLATED WITH ISOPARAFFIN AND A CATALYST, SUCH AS H2SO4, HF OR ZEOLITES. THE OLEFIN FRACTION MAY BE HYDROGENATED PRIOR TO ALKYLATION TO CONVERTE ANY BUTADIENE FORMED IN THE DEHYDROGENATION REACTION TO BUTENE.
Inventors
- 👤 Charles E Hemminger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:04
CPC Classifications
C; C07; C07C; C07C9/00; C07C9/14; C07C9/16; C07C2/00; C07C2/54; C07C2/56; C07C2/58; C07C2/62; C07C5/00; C07C5/02; C07C5/03; C07C5/05; C07C5/42; C07C5/48; C07C7/00; C07C7/148; C07C7/163; C07C2521/00; C07C2521/02; C07C2521/04; C07C2523/00; C07C2523/16; C07C2523/18; C07C2523/20; C07C2523/22; C07C2523/24; C07C2523/70; C07C2523/74; C07C2527/00; C07C2527/02; C07C2527/04; C07C2527/043; C07C2527/053; C07C2527/054; C07C2527/06; C07C2527/08; C07C2527/12; C07C2527/1206; C07C2527/14; C07C2527/186; C07C2529/00; C07C2529/04; C07C2529/06; Y; Y10; Y10S; Y10S585/00; Y10S585/919; Y10S585/921; Y10S585/924; Y10S585/925
Claims Analysis
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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) | 1975-05-02 | 1975-11-01 | 1976-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-02 | 1979-11-01 | 1980-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-02 | 1983-11-01 | 1984-05-02 | $7700.00 | Window Closed / Lapsed |