Patent US2917359A successfully refreshed from Google Patents.
US2917359A
Expired / Lapsed
US
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Separation of fission product values from hexavalent plutonium by carrier precipitation
Assignee: Individual
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Filing: 1951-11-16
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Granted: 1959-12-15
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Expires: 1971-11-16
Abstract
No abstract record available.
Inventors
- 👤 Davies Thomas Harrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:03
CPC Classifications
C; C01; C01G; C01G56/00; C01G56/001; C01G56/002
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
IN A PROCES FOR SEPARATING FISSON PRODUCT VALUES FROM AQUEOUS MINERAL ACID SOLUTIONS CONTAINING FISSION PRODUCT AND PLUTONIUM (VI) VALUES BY CARRIER PRECIPITATION, THE IMPROVEMENT WHICH COMPRISES INCORPORATING AT LEAST ONE OTHER COMPOUND SELECTED FROM THE GROUP CONSISTING OF ZIRCONIUM PHOSPHATE, COLUMBIC OXIDE AND IANTHANIUM FLOURIDE INTO SAID AQUEOUS SOLUTION IN A QUANTITY OF YIELD A CONCENTRATION OF ABOUT 1.5 GRAMS PER LITER; ADDING BISMUTH IONS AND PHOSPHATE IONS TO SAID SOLUTION WHEREBY MIXED PRECIPITATE OF BISMUTH PHOSPHATE AND SAID OTHER COMPOUND FORMS AND CARRIES SAID FISSON PRODUCT VALUES WHILE SAID HEXAVALENT PLUTONIUM VALUES REMAIN IN SOLUTION; AND SEPARATING SAID MIXED PRECIPITATE FROM SAID SOLUTION.
Claim 2
Dependent Claim
105 words
IN A PROCES FOR SEPARATING FISSON PRODUCT VALUES FROM AQUEOUS MINERAL ACID SOLUTIONS CONTAINING FISSION PRODUCT AND PLUTONIUM (VI) VALUES BY CARRIER PRECIPITATION, THE IMPROVEMENT WHICH COMPRISES INCORPORATING AT LEAST ONE OTHER COMPOUND SELECTED FROM THE GROUP CONSISTING OF ZIRCONIUM PHOSPHATE, COLUMBIC OXIDE AND IANTHANIUM FLOURIDE INTO SAID AQUEOUS SOLUTION IN A QUANTITY OF YIELD A CONCENTRATION OF ABOUT 1.5 GRAMS PER LITER; ADDING BISMUTH IONS AND PHOSPHATE IONS TO SAID SOLUTION WHEREBY MIXED PRECIPITATE OF BISMUTH PHOSPHATE AND SAID OTHER COMPOUND FORMS AND CARRIES SAID FISSON PRODUCT VALUES WHILE SAID HEXAVALENT PLUTONIUM VALUES REMAIN IN SOLUTION; AND SEPARATING SAID MIXED PRECIPITATE FROM SAID SOLUTION.
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) | 1962-12-14 | 1963-06-15 | 1963-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-14 | 1967-06-15 | 1967-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-14 | 1971-06-15 | 1971-12-15 | $7700.00 | Window Closed / Lapsed |