US3800003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Butenes isomerization, separation and alkylation
Assignee: Universal Oil Products Co
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Filing: 1972-03-31
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Granted: 1974-03-26
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Expires: 1992-03-31
Abstract
Abstract A process for producing an alkylation reaction product from an isoparaffinic reactant and an olefinic reactant containing 1butene, 2-butene and isobutylene which includes passing the olefinic reactant through an isomerization zone, fractionating the isomerization zone effluent to separate 2-butene from 1butene and isobutylene, passing the 2-butene to an alkylation zone with the isoparaffinic reactant and an alkylation catalyst, recycling a portion of the 1-butene and isobutylene to the isomerization zone, and passing a portion of the 1-butene and isobutylene to the alkylation zone with the 2-butene and isoparaffinic reactant.
Inventors
- 👤 J Sobel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:41
CPC Classifications
C; C07; C07C; C07C9/00; C07C9/14; C07C9/16; C07C5/00; C07C5/22; C07C5/23; C07C5/25; C07C5/2506; C07C5/2512; C07C2521/00; C07C2521/02; C07C2521/04; C07C2521/06; C07C2521/08; C07C2521/10; C07C2523/00; C07C2523/16; C07C2523/24; C07C2523/26; C07C2527/00; C07C2527/06; C07C2527/08; C07C2527/12; C07C2527/1206; C07C2529/00; C07C2529/04; C07C2529/06; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/584
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
27 words
The process of claim 1 further characterized in that said isomerization is catalyzed by a refractory inorganic oxide selected from alumina, silica, zirconia, chromium oxide and magnesia.
Claim 2
Dependent Claim
24 words
The process of claim 1 further characterized in that said isomerization is catalyzed by a crystalline aluminosilicate combined with a substantially anhydrous boron halide.
Claim 3
Dependent Claim
14 words
The process of claim 1 further characterized in that said isoparaffinic hydrocarbon is isobutane.
References Cited (Backward Citations)
US2594343A
Cited
US2502015A
Cited
US2427293A
Cited
US3078321A
Cited
US3217059A
Cited
US3467728A
Cited
US3663646A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-03-25 | 1977-09-24 | 1978-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-25 | 1981-09-24 | 1982-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-25 | 1985-09-24 | 1986-03-26 | $7700.00 | Window Closed / Lapsed |