US2897248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkylation
Assignee: Standard Oil Co
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Filing: 1956-06-06
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Granted: 1959-07-28
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Expires: 1976-06-06
Abstract
No abstract record available.
Inventors
- 👤 Alan K Roebuck
- 👤 Bernard L Evering
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:50
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/54; C07C2/64; C07C2/66; C07C2/68; C07C2527/00; C07C2527/06; C07C2527/125; C07C2527/126; C07C2531/00; C07C2531/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
THE PROCESS OF ALKYLATING ISOPARAFFINS WITH OLEFINS WHICH COMPRISES INTRODUCING ISOBUTANE AND AT LEAST ONE OLEFIN SELECTED FROM THE GROUP CONSISTING OF PROPENE, BUTENE-2, AND ISOBUTENE INTO A REACTION ZONE, THEREIN INTIMATELY CONTACTING IN THE LIQUID PHASE THE ISOBUTANE AND OLEFIN WITH AN ALUMINUM CHLORIDE-ETHER CATALYST UNDER ALKYLATION REACTION CONDITIONS AND IN THE PRESENCE OF A MONO-NUCLEAR AROMATIC HYDROCARBON IN THE AMOUNT OF BETWEEN ABOUT .001 AND 1.5 WEIGHT-PERCENT BASED UPON ISOBUTANE AND OLEFIN PRESENT IN THE REACTION ZONE WHEREBY ALKYLATION PRODUCTS ARE FORMED, SAID ALUMINUM CHLORIDE ETHER CATALYST CONTAINING MORE THAN ONE BUT LESS THAN TWO MOLS OF ALUMINUM CHLORIDE PER MOL OF ETHER AND BEING FORMED OF A SOLUTION OF ALUMINUM CHLORIDE IN AT LEAST ONE ETHER SELECTED FROM THE GROUP CONSISTING OF DIMETHYL ETHER AND DIETHYL ETHER, REMOVING THE ALKYLATION PRODUCTS FROM SAID REACTION ZONE, AND RECOVERING A GASOLINE BOILING RANGE ALKYLATE FROM THE ALKYLATION PRODUCTS.
Claim 2
Dependent Claim
149 words
THE PROCESS OF ALKYLATING ISOPARAFFINS WITH OLEFINS WHICH COMPRISES INTRODUCING ISOBUTANE AND AT LEAST ONE OLEFIN SELECTED FROM THE GROUP CONSISTING OF PROPENE, BUTENE-2, AND ISOBUTENE INTO A REACTION ZONE, THEREIN INTIMATELY CONTACTING IN THE LIQUID PHASE THE ISOBUTANE AND OLEFIN WITH AN ALUMINUM CHLORIDE-ETHER CATALYST UNDER ALKYLATION REACTION CONDITIONS AND IN THE PRESENCE OF A MONO-NUCLEAR AROMATIC HYDROCARBON IN THE AMOUNT OF BETWEEN ABOUT .001 AND 1.5 WEIGHT-PERCENT BASED UPON ISOBUTANE AND OLEFIN PRESENT IN THE REACTION ZONE WHEREBY ALKYLATION PRODUCTS ARE FORMED, SAID ALUMINUM CHLORIDE ETHER CATALYST CONTAINING MORE THAN ONE BUT LESS THAN TWO MOLS OF ALUMINUM CHLORIDE PER MOL OF ETHER AND BEING FORMED OF A SOLUTION OF ALUMINUM CHLORIDE IN AT LEAST ONE ETHER SELECTED FROM THE GROUP CONSISTING OF DIMETHYL ETHER AND DIETHYL ETHER, REMOVING THE ALKYLATION PRODUCTS FROM SAID REACTION ZONE, AND RECOVERING A GASOLINE BOILING RANGE ALKYLATE FROM THE ALKYLATION PRODUCTS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-07-27 | 1963-01-26 | 1963-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-27 | 1967-01-26 | 1967-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-27 | 1971-01-26 | 1971-07-28 | $7700.00 | Window Closed / Lapsed |