US2905528A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for preparation of uo2 particles
Assignee: Individual
•
Filing: 1958-02-24
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Granted: 1959-09-22
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Expires: 1978-02-24
Abstract
No abstract record available.
Inventors
- 👤 James R Johnson
- 👤 Albert J Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:29
CPC Classifications
C; C01; C01G; C01G43/00; C01G43/01; C01G43/025; C01P; C01P2004/00; C01P2004/51; C01P2004/60; C01P2004/61; Y; Y10; Y10S; Y10S376/00; Y10S376/90; Y10S376/901
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
A METHOD FOR THE PREPARATION OF UO2 PARTICLES WITHIN THE SIZE RANGE OF APPROXIMATELY 40-100 MICRONS WHICH COMPRISES CONTACTING UO3 WITH AN AQUEOUS SOLUTION OF URANYL IONS AT AN ELEVATED TEMPERATURE, SEPARATING THE RESULTING UO3 HYDRATE CRYSTALS FROM THE REMAINING AQUEOUS SOLUTION, WASHING THE SEPARATED CRYSTALS WITH WATER, REDUCING THE WASHED CRYSTALS TO UO2, HEATING THE RESULTING UO2 TO AT LEAST APPROXIMATELY 1000*C. FOR A SUFFICIENT PERIOD OF TIME TO EFFECT DENSIFICATION, AND RECOVERING THE RESULTING DENSIFIED UO2 WITHIN THE 40-100 MICRON SIZE RANGE.
Claim 2
Independent Claim
84 words
A METHOD FOR THE PREPARATION OF UO2 PARTICLES WITHIN THE SIZE RANGE OF APPROXIMATELY 40-100 MICRONS WHICH COMPRISES CONTACTING UO3 WITH AN AQUEOUS SOLUTION OF URANYL IONS AT AN ELEVATED TEMPERATURE, SEPARATING THE RESULTING UO3 HYDRATE CRYSTALS FROM THE REMAINING AQUEOUS SOLUTION, WASHING THE SEPARATED CRYSTALS WITH WATER, REDUCING THE WASHED CRYSTALS TO UO2, HEATING THE RESULTING UO2 TO AT LEAST APPROXIMATELY 1000*C. FOR A SUFFICIENT PERIOD OF TIME TO EFFECT DENSIFICATION, AND RECOVERING THE RESULTING DENSIFIED UO2 WITHIN THE 40-100 MICRON SIZE RANGE.
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) | 1962-09-21 | 1963-03-23 | 1963-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-21 | 1967-03-23 | 1967-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-21 | 1971-03-23 | 1971-09-22 | $7700.00 | Window Closed / Lapsed |