US3810955A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Butene separation and alkylation
Assignee: Universal Oil Products Co
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Filing: 1971-12-01
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Granted: 1974-05-14
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Expires: 1991-12-01
Abstract
Abstract A PROCESS FOR PRODUCING AN ALKYLATION REACTION PRODUCT FROM AN ISOPARAFFIN AND AN OLEFINIC REACTANT CONTAINING 1BUTENE, 2-BUTENE AND ISOBUTYLENE BY SEPARATING THE REACTANT, USING A CRYSTALLINE ALUMINOSILICATE, TO PROVIDE A 1-BUTENE STEAM AND A 1-BUTENE-FREE STREAM AND ALKYLATING THE 1-BUTENE-FREE STEAM AT 2-BUTENE-ISOBUTYLENE ALKYLATION CONDITIONS. THE 1-BUTENE STREAM IS SEPARATELY ALKYLATED AT 1-BUTENE ALKYLATION CONDITIONS.
Inventors
- 👤 J Sobel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:21
CPC Classifications
C; C07; C07C; C07C9/00; C07C9/14; C07C9/16; C07C2/00; C07C2/54; C07C2/56; C07C2/58; C07C2/62; C07C7/00; C07C7/12; C07C7/13; C07C2527/00; C07C2527/06; C07C2527/08; C07C2527/12; C07C2527/1206
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) | 1977-05-13 | 1977-11-12 | 1978-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-13 | 1981-11-12 | 1982-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-13 | 1985-11-12 | 1986-05-14 | $7700.00 | Window Closed / Lapsed |