US2968632A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Isomerization catalyst
Assignee: Pure Oil Co
•
Filing: 1958-07-14
•
Granted: 1961-01-17
•
Expires: 1978-07-14
Abstract
No abstract record available.
Inventors
- 👤 Hillis O Folkins
- 👤 Elmer L Miller
- 👤 Kenneth E Lucas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:01
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/38; B01J23/40; B01J23/44; C; C07; C07C; C07C5/00; C07C5/22; C07C5/27; C07C5/2767; C07C5/277; C07C5/2791; B01J21/00; B01J21/06; B01J21/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
A METHOD OF PREPARING A HIGHLY ACTIVE ISOMERIZATION CATALYST WHICH COMPRISES IMPREGNATING A PRECALCINED SILICA-ALUMINA SUPPORT, CONTAINING AT LEAST 50 WT. PERCENT SILICIA, WITH A SUFFICIENT AMOUNT OF A SOLUTION OF A REDUCIBLE PALLADIUM COMPOUND TO PRODUCE A PALLADIUM CONCENTRATION OF 0.01-1.0 WT. PERCENT ON THE SUPPORT, DYRING THE IMPREGNATED CATALYST, AND ACTIVATING THE CATALYST BY REDUCTION WITH HYDROGEN AT A TEMPERATURE OF ABOUT 750*800* F.
Claim 2
Independent Claim
66 words
A METHOD OF PREPARING A HIGHLY ACTIVE ISOMERIZATION CATALYST WHICH COMPRISES IMPREGNATING A PRECALCINED SILICA-ALUMINA SUPPORT, CONTAINING AT LEAST 50 WT. PERCENT SILICIA, WITH A SUFFICIENT AMOUNT OF A SOLUTION OF A REDUCIBLE PALLADIUM COMPOUND TO PRODUCE A PALLADIUM CONCENTRATION OF 0.01-1.0 WT. PERCENT ON THE SUPPORT, DYRING THE IMPREGNATED CATALYST, AND ACTIVATING THE CATALYST BY REDUCTION WITH HYDROGEN AT A TEMPERATURE OF ABOUT 750*800* F.
References Cited (Backward Citations)
US2478916A
Cited
US2589189A
Cited
US2651598A
Cited
US2763623A
Cited
US2740820A
Cited
US2834823A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-17 | 1964-07-18 | 1965-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-17 | 1968-07-18 | 1969-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-17 | 1972-07-18 | 1973-01-17 | $7700.00 | Window Closed / Lapsed |