Patent US3778489A successfully refreshed from Google Patents.
US3778489A
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US
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Alkylation with separate olefin streams including isobutylene
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1971-12-16
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Granted: 1973-12-11
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Expires: 1991-12-16
Abstract
Abstract AN ALKYLATION PROCESS COMPRISING CONTACTING A PARAFFIN, PREFERABLY A C4-C6 ISOPARAFFIN, AND A STRONG ALYLATION CATALYST IN AN ALKYLATION ZONE WITH A FIRST OLEFIN-CONTAINING STREAM SUBSTANTIALLY FREE OF ISOBUTYLENE AND 2METHYL-BUTENE-1 AND A SECOND OLEFIN-CONTAINING STREAM COMPRISING ISOBUTYLENE OR 2-METTHYL-BUTENE-1, WHERE THE FIRST AND SECOND OLEFIN-CONTAINING STREAMS ARE INTRODUCED INTO THE ALKYLATION ZONE AT SEPARATE POINTS ALONG THE ZONE, THE POINTS SITUATED SO AS TO PREVENT ANY APPRECIABLE MIXING OF THE FIRST AND SECOND OLEFIN-CONTAINING STREAMS WITH EACH OTHER PRIOR TO CONTACITNG THE CATALYST AND RECOVERING ALKYLATE PRODUCT OF HIGH OCTANE NUMBER.
Inventors
- 👤 P Parker
- 👤 I Mayer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:17
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/54; C07C2/56; C07C2/58; C07C2/62; C07C2527/00; C07C2527/02; C07C2527/03; C07C2527/053; C07C2527/054; C07C2527/06; C07C2527/08; C07C2527/12; C07C2527/1206; C07C2529/00; C07C2529/04; C07C2529/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-10 | 1977-06-11 | 1977-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-10 | 1981-06-11 | 1981-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-10 | 1985-06-11 | 1985-12-11 | $7700.00 | Window Closed / Lapsed |