US3260681A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthetic alumina, silica-alumina hydrocarbon cracking catalyst and method for hydrocarbon cracking
Assignee: Sinclair Research Inc
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Filing: 1963-11-04
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Granted: 1966-07-12
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Expires: 1983-11-04
Abstract
No abstract record available.
Inventors
- 👤 Robert A Sanford
- 👤 Erickson Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:30
CPC Classifications
B; B01; B01J; B01J21/00; B01J21/12; C; C10; C10G; C10G11/00; C10G11/02; C10G11/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A SYNTHETIC CATALYST CONSISTING ESSENTIALLY OF A DRIED COMPOSITE OF A CATALYST PRECURSOR HAVING ABOUT 50 TO 90% BY WEIGHT OF A SILICA-ALUMINA HYDROGEL HAVING A SILICA CONTENT OF ABOUT 65 TO 80% BY WEIGHT AND AN ALUMINA CONTENT OF ABOUT 20:35% BY WEIGHT, MIXED WITH ABOUT 10 TO 50% BY WEIGHT OF AN ALUMINA HYDROGEL, SAID AMOUNTS BEING SUFFICIENT TO PROVIDE A TOTAL ALUMINA CONTENT OF THE SILICA-ALUMINA HYDROGEL-ALUMINA HYDROGEL PRECURSOR OF AOUT 40-65%, SAID PERCENTAGES BEING ON A DRY BASIS.
Claim 2
Dependent Claim
82 words
A SYNTHETIC CATALYST CONSISTING ESSENTIALLY OF A DRIED COMPOSITE OF A CATALYST PRECURSOR HAVING ABOUT 50 TO 90% BY WEIGHT OF A SILICA-ALUMINA HYDROGEL HAVING A SILICA CONTENT OF ABOUT 65 TO 80% BY WEIGHT AND AN ALUMINA CONTENT OF ABOUT 20:35% BY WEIGHT, MIXED WITH ABOUT 10 TO 50% BY WEIGHT OF AN ALUMINA HYDROGEL, SAID AMOUNTS BEING SUFFICIENT TO PROVIDE A TOTAL ALUMINA CONTENT OF THE SILICA-ALUMINA HYDROGEL-ALUMINA HYDROGEL PRECURSOR OF AOUT 40-65%, SAID PERCENTAGES BEING ON A DRY BASIS.
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) | 1969-07-11 | 1970-01-10 | 1970-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-11 | 1974-01-10 | 1974-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-11 | 1978-01-10 | 1978-07-12 | $7700.00 | Window Closed / Lapsed |