Patent US4014458A successfully refreshed from Google Patents.
Patent US3763261A successfully refreshed from Google Patents.
US3763261A
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US
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Butene separation isomerization and alkylation
Assignee: Universal Oil Products Co
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Filing: 1971-12-01
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Granted: 1973-10-02
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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 1-BUTENE, 2-BUTENE AND ISOBUTYLENE BY SEPARATING THE REACTANT, USING A CRYSTALINE ALUMINOSILICAT, TO PROVIDE A 1-BUTENE STREAM AND A 2-BUTENE-ISOBUTYLENE STREAM; ALKYLATING THE 2-BUTENE-ISOBUTYLENE STREAM; AND ISOMERIZING THE 1-BUTENE STREAM TO FORM ADDITIONAL 2-BUTENE ISOMER FOR THE ALKYLATION STEP.
Inventors
- 👤 J Sobel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:43
CPC Classifications
C; C07; C07C; C07C9/00; C07C9/14; C07C9/16; C07C2/00; C07C2/54; C07C2/56; C07C2/58; C07C2/62; C07C5/00; C07C5/22; C07C5/23; C07C5/25; C07C5/2506; C07C5/2525; C07C5/2543; C07C7/00; C07C7/12; C07C7/13; C07C2527/00; 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) | 1976-10-01 | 1977-04-02 | 1977-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-01 | 1981-04-02 | 1981-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-01 | 1985-04-02 | 1985-10-02 | $7700.00 | Window Closed / Lapsed |