US3086998A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Selective alkylation of aromatic hydrocarbons
Assignee: Universal Oil Products Co
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Filing: 1960-09-12
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Granted: 1963-04-23
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Expires: 1980-09-12
Abstract
No abstract record available.
Inventors
- 👤 George L Hervert
- 👤 Grove Downers
- 👤 Carl B Linn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:21
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/54; C07C2/64; C07C2/66; C07C2/68; C07C2521/00; C07C2521/02; C07C2521/04; C07C2527/00; C07C2527/06; C07C2527/08; C07C2527/12; C07C2527/1213
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A PROCESS FOR THE PRODUCTION OF A SELECTIVE ALKYLAROMATIC HYDROCARBON WHICH COMPRISES PASSING AN ALKYLATABLE AROMATIC HYDROCARBON, OLEFIN-ACTING COMPOUNDS, AND NOT MORE THAN 0.8 GRAM OF BORON TRIFLUORIDE PER GRAM MOL OF OLEFIN-ACTING COMPOUNDS TO AN ALKYLATION ZONE CONTAINING A BORON TRIFLUORIDE MODIFIED, SULFUR CONTAINING ALUMINA, REACTING THEREIN SAID ALKYLATABLE AROMATIC HYDROCARBON WITH SAID OLEFIN-ACTING COMPOUNDS AT ALKYLATION CONDITIONS IN THE PRESENCE OF AN ALKYLATION CATALYST COMPRISING SAID BORON TRIFLUORIDE MODIFIED, SULFUR CONTAINING ALUMINA, AND RECOVERING THEREFORM SELECTIVELY ALKYLATED AROMATIC HYDROCARBON AND UNREACTED OLEFIN-ACTING COMPOUND.
Claim 2
Dependent Claim
85 words
A PROCESS FOR THE PRODUCTION OF A SELECTIVE ALKYLAROMATIC HYDROCARBON WHICH COMPRISES PASSING AN ALKYLATABLE AROMATIC HYDROCARBON, OLEFIN-ACTING COMPOUNDS, AND NOT MORE THAN 0.8 GRAM OF BORON TRIFLUORIDE PER GRAM MOL OF OLEFIN-ACTING COMPOUNDS TO AN ALKYLATION ZONE CONTAINING A BORON TRIFLUORIDE MODIFIED, SULFUR CONTAINING ALUMINA, REACTING THEREIN SAID ALKYLATABLE AROMATIC HYDROCARBON WITH SAID OLEFIN-ACTING COMPOUNDS AT ALKYLATION CONDITIONS IN THE PRESENCE OF AN ALKYLATION CATALYST COMPRISING SAID BORON TRIFLUORIDE MODIFIED, SULFUR CONTAINING ALUMINA, AND RECOVERING THEREFORM SELECTIVELY ALKYLATED AROMATIC HYDROCARBON AND UNREACTED OLEFIN-ACTING COMPOUND.
References Cited (Backward Citations)
US2880255A
Cited
US2939890A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-22 | 1966-10-22 | 1967-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-22 | 1970-10-22 | 1971-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-22 | 1974-10-22 | 1975-04-23 | $7700.00 | Window Closed / Lapsed |