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US3759841A
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P metal rhenium or group iv-a metal method of manufacturing a supported catalyst containing platinum grou
Assignee: Honeywell UOP LLC
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Filing: 1971-05-10
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Granted: 1973-09-18
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Expires: 1991-05-10
Abstract
Abstract A METHOD OF CATALYST MANUFACTURE. A PLATINUM GROUP METAL COMPOUND IN COMMON SOLUTION WITH A GROUP IV-A METAL AND/OR RHENIUM COMPOUND IS IMPREGNATED ON A CARRIER MATERIAL. THE COMMON SOLUTION FURTHER CONTAINS A WEAK ACID WHICH ACTS AS A BUFFER TO MAINTAIN THE SOLUTION AT A PH OF LESS THAN ABOUT 3.5 IN CONTACT WITH THE CARRIER MATERIAL.
Inventors
- 👤 F Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:41
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/38; B01J23/54; B01J23/56; B01J23/64; B01J23/656; B01J23/6567; B01J23/62; B01J23/622; C; C10; C10G; C10G35/00; C10G35/04; C10G35/06; C10G35/085; C10G35/09
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-17 | 1977-03-19 | 1977-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-17 | 1981-03-19 | 1981-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-17 | 1985-03-19 | 1985-09-18 | $7700.00 | Window Closed / Lapsed |