US3681035A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing alpha ammonium uranous pentafluoride
Assignee: Honeywell International Inc
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Filing: 1969-10-01
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Granted: 1972-08-01
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Expires: 1989-10-01
Abstract
Abstract PROCESS FOR PREPARING NH4UF5 IN ALPHA CRYSTALLINE FORM BY ADDING TO AN AQUEOUS ACIDIC SOLUTION OF A URANYL SALT CONTAINING CUPRIC IONS, CHLORIDE IONS AND AMMONIUM IONS, HYDROGEN FLUORIDE AND HYDROXYLAMINE, THE HYDROXYLAMINE BEING ADDED IN AMOUNTS AND TIME OF ADDITION SO AS TO MAINTAIN A CONCENTRATION OF AT LEAST ABOUT 0.07 MOL OF HYDROXYLAMINE PER LITER OF SOLUTION UNTIL THE MAJOR PORTION OF THE URANIUM IN THE URANYL SALT HAS BEEN CONVERTED TO NH4UF5.
Inventors
- 👤 Murray Selman
- 👤 Christian A Wamser
- 👤 John E Wilkalis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:47
CPC Classifications
C; C01; C01G; C01G43/00; C01G43/006; C01P; C01P2002/00; C01P2002/70; C01P2002/72; C01P2006/00; C01P2006/80
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-01 | 1976-01-31 | 1976-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-01 | 1980-01-31 | 1980-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-01 | 1984-01-31 | 1984-08-01 | $7700.00 | Window Closed / Lapsed |