US2606878A
Expired / Lapsed
US
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Double-calcination process of preparing an alumina-platinum-halogen catalyst
Assignee: Universal Oil Products Co
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Filing: 1949-06-28
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Granted: 1952-08-12
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Expires: 1969-06-28
Abstract
No abstract record available.
Inventors
- 👤 Haensel Vladimir
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:22
CPC Classifications
B; B01; B01J; B01J27/00; B01J27/06; B01J27/128; B01J27/13; Y; Y10; Y10S; Y10S252/00; Y10S252/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A METHOD OF MANUFACTURING A CATALYST WHICH COMPRISES COMMINGLING A SOLUTION OF A PLATINUM COMPOUND WITH ALUMINA IN AN AMOUNT TO FORM A FINAL CATALYST CONTAINING FROM ABOUT 0.01% TO ABOUT 10% BY WEIGHT OF PLATINUM, HEATING THE RESULTANT MIXTURE AT A TEMPERATURE OF FROM ABOUT 700* TO ABOUT 1100* F., SUBSEQUENTLY COMMINGLING WITH THE ALUMINA A HALOGEN-CONTAINING SOLUTION IN AN AMOUNT TO COMBINE FROM ABOUT 0.1% TO ABOUT 8% BY WEIGHT OF HALOGEN WITH THE ALUMINA ON A DRY BASIS, AND CALCINING THE RESULTANT COMPOSITE AT A TEMPERATURE OF FROM ABOUT 700* TO ABOUT 1100* F.
Claim 2
Independent Claim
97 words
A METHOD OF MANUFACTURING A CATALYST WHICH COMPRISES COMMINGLING A SOLUTION OF A PLATINUM COMPOUND WITH ALUMINA IN AN AMOUNT TO FORM A FINAL CATALYST CONTAINING FROM ABOUT 0.01% TO ABOUT 10% BY WEIGHT OF PLATINUM, HEATING THE RESULTANT MIXTURE AT A TEMPERATURE OF FROM ABOUT 700* TO ABOUT 1100* F., SUBSEQUENTLY COMMINGLING WITH THE ALUMINA A HALOGEN-CONTAINING SOLUTION IN AN AMOUNT TO COMBINE FROM ABOUT 0.1% TO ABOUT 8% BY WEIGHT OF HALOGEN WITH THE ALUMINA ON A DRY BASIS, AND CALCINING THE RESULTANT COMPOSITE AT A TEMPERATURE OF FROM ABOUT 700* TO ABOUT 1100* F.
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) | 1955-08-12 | 1956-02-11 | 1956-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-12 | 1960-02-11 | 1960-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-12 | 1964-02-11 | 1964-08-12 | $7700.00 | Window Closed / Lapsed |