Patent US3104268A successfully refreshed from Google Patents.
US3104268A
Expired / Lapsed
US
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Alkylation of aromatics with a zinc oxide, chromium oxide, copper oxide, silica-alumina catalyst
Assignee: Sinclair Research Inc
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Filing: 1962-03-19
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Granted: 1963-09-17
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Expires: 1982-03-19
Abstract
No abstract record available.
Inventors
- 👤 Stephen M Kovach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:23
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/86; C07C2/862; C07C2/864; C07C2/54; C07C2/64; C07C2/66; C07C2521/00; C07C2521/12; C07C2523/00; C07C2523/06; C07C2523/16; C07C2523/24; C07C2523/26; C07C2523/70; C07C2523/72; C07C2523/76; C07C2523/84; C07C2523/85; C07C2523/86
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
A PROCESS FOR THE ALKYLATION OF AROMATICS WITH AN ALKYLATING AGENT WHICH COMPRISES CONTACTING AN ALKYLATABLE AROMATIC WITH AN ALKYLATING AGENT UNDER ALKYLATION CONDITIONS INCLUDING A TEMPRATURE OF ABOUT 300 TO 1000*F. AND IN THE PRESENCE OF FREE HYDROGEN AND OF A CATALYST CONSISTING ESSENTIALLY OF ABOUT 1 TO 39 WEIGHT PERCENT ZINC OXIDE, ABOUT 1 TO 39 WEIGHT PERCENT CHROMIUM OXIDE AND ABOUT 0 TO 38 WEIGHT PERCENT COPPER OXIDE AND A SILICA-ALMINA SUPPORT, WHEREIN THE TOTAL AMOUNT TO SAID ZINC OXIDE, CHROMIUM OXIDE AND COPPER OXIDE IS PRESENT IN THE RANGE FROM ABOUT 5 TO 40 WEIGHT PERCENT OF THE TOTAL CATALYST.
Claim 2
Dependent Claim
104 words
A PROCESS FOR THE ALKYLATION OF AROMATICS WITH AN ALKYLATING AGENT WHICH COMPRISES CONTACTING AN ALKYLATABLE AROMATIC WITH AN ALKYLATING AGENT UNDER ALKYLATION CONDITIONS INCLUDING A TEMPRATURE OF ABOUT 300 TO 1000*F. AND IN THE PRESENCE OF FREE HYDROGEN AND OF A CATALYST CONSISTING ESSENTIALLY OF ABOUT 1 TO 39 WEIGHT PERCENT ZINC OXIDE, ABOUT 1 TO 39 WEIGHT PERCENT CHROMIUM OXIDE AND ABOUT 0 TO 38 WEIGHT PERCENT COPPER OXIDE AND A SILICA-ALMINA SUPPORT, WHEREIN THE TOTAL AMOUNT TO SAID ZINC OXIDE, CHROMIUM OXIDE AND COPPER OXIDE IS PRESENT IN THE RANGE FROM ABOUT 5 TO 40 WEIGHT PERCENT OF THE TOTAL CATALYST.
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) | 1966-09-16 | 1967-03-18 | 1967-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-16 | 1971-03-18 | 1971-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-16 | 1975-03-18 | 1975-09-17 | $7700.00 | Window Closed / Lapsed |