US2741602A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing impregnated catalysts
Assignee: Gulf Research and Development Co
•
Filing: 1952-04-04
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Granted: 1956-04-10
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Expires: 1972-04-04
Abstract
No abstract record available.
Inventors
- 👤 Joseph B Mckinley
- 👤 Charles W Montgomery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:49
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/24; B01J37/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A PROCESS FOR PREPARING AN IMPREGNATED CATALYST WHICH COMPRISES IMPREGNATING FINELY DIVIDED CATALYST BASE PARTICLES WITH AN IMPREGNATING SOLUTION CONTAINING A COMPONENT OF THE CATALYST, REMOVING EXCESS IMPREGNATING SOLUTION FROM THE WET IMPREGANATED CATALYST BASE PARTICLES, MIXING SAID WET IMPREGNATED CATALYST BASE PARTICLES WITH PREVIOUSLY DRIED IMPREGNATED CATALYST PARTICLES AT A TEMPERATURE OF NOT MORE THAN ABOUT 25* C. ABOVE THE BOILING POINT OF THE IMPREGNATING SOLUTION, AND AT LEAST PARTIALLY DRYING THE MIXTURE BY MAINTAINING IT FLUIDIZED.
Claim 2
Dependent Claim
78 words
A PROCESS FOR PREPARING AN IMPREGNATED CATALYST WHICH COMPRISES IMPREGNATING FINELY DIVIDED CATALYST BASE PARTICLES WITH AN IMPREGNATING SOLUTION CONTAINING A COMPONENT OF THE CATALYST, REMOVING EXCESS IMPREGNATING SOLUTION FROM THE WET IMPREGANATED CATALYST BASE PARTICLES, MIXING SAID WET IMPREGNATED CATALYST BASE PARTICLES WITH PREVIOUSLY DRIED IMPREGNATED CATALYST PARTICLES AT A TEMPERATURE OF NOT MORE THAN ABOUT 25* C. ABOVE THE BOILING POINT OF THE IMPREGNATING SOLUTION, AND AT LEAST PARTIALLY DRYING THE MIXTURE BY MAINTAINING IT FLUIDIZED.
References Cited (Backward Citations)
US2592016A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-10 | 1959-10-10 | 1960-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-10 | 1963-10-10 | 1964-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-10 | 1967-10-10 | 1968-04-10 | $7700.00 | Window Closed / Lapsed |