Patent US2689165A successfully refreshed from Google Patents.
US2689165A
Expired / Lapsed
US
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Process for producing uranium tetrafluoride
Assignee: Imperial Chemical Industries Ltd
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Filing: 1944-08-03
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Granted: 1954-09-14
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Expires: 1964-08-03
Abstract
No abstract record available.
Inventors
- 👤 Harvey Bernard George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:04
CPC Classifications
C; C01; C01G; C01G43/00; C01G43/04; C01G43/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
A PROCESS FOR THE PRODUCTION OF URANIUM TETRAFLUORIDE WITH A DECREASED AMOUNT OF TRACE ELEMENT IMPURITIES FROM AN AQUEOUS URANYL SALT SOLUTION CONTAINING SUCH IMPURITIES AND AN EXCESS OF HYDROFLUORIC ACID OVER THAT STOICHIOMETRICALLY REQUIRED TO FORM URANIUM TETRAFLUORIDE WITH THE URANIUM IN SOLUTION, WHICH PROCESS COMPRISES REDUCING SUFFICIENT OF THE URANYL SALT SO AS TO CAUSE ONLY A SMALL FRACTION OF THE URANIUM TO BE PRECIPITATED AS URANIUM TETRAFLUORIDE WHICH URANIUM TETRAFLUORIDE WILL INCLUDE A MAJOR PROPORTION OF THE TRACE ELEMENT IMPURITIES, REMOVING SUCH PRECIPITATE, REDUCING A FURTHER QUANTITY OF THE URANIUM IN SOLUTION TO THE URANOUS CONDITION, THEREBY CAUSING IT TO BE PRECIPITATED AS URANIUM TETRAFLUORIDE, AND RECOVERING SUCH URANIUM TETRAFLUORIDE.
Claim 2
Dependent Claim
113 words
A PROCESS FOR THE PRODUCTION OF URANIUM TETRAFLUORIDE WITH A DECREASED AMOUNT OF TRACE ELEMENT IMPURITIES FROM AN AQUEOUS URANYL SALT SOLUTION CONTAINING SUCH IMPURITIES AND AN EXCESS OF HYDROFLUORIC ACID OVER THAT STOICHIOMETRICALLY REQUIRED TO FORM URANIUM TETRAFLUORIDE WITH THE URANIUM IN SOLUTION, WHICH PROCESS COMPRISES REDUCING SUFFICIENT OF THE URANYL SALT SO AS TO CAUSE ONLY A SMALL FRACTION OF THE URANIUM TO BE PRECIPITATED AS URANIUM TETRAFLUORIDE WHICH URANIUM TETRAFLUORIDE WILL INCLUDE A MAJOR PROPORTION OF THE TRACE ELEMENT IMPURITIES, REMOVING SUCH PRECIPITATE, REDUCING A FURTHER QUANTITY OF THE URANIUM IN SOLUTION TO THE URANOUS CONDITION, THEREBY CAUSING IT TO BE PRECIPITATED AS URANIUM TETRAFLUORIDE, AND RECOVERING SUCH URANIUM TETRAFLUORIDE.
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) | 1957-09-13 | 1958-03-15 | 1958-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-13 | 1962-03-15 | 1962-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-13 | 1966-03-15 | 1966-09-14 | $7700.00 | Window Closed / Lapsed |