US3302993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of recovering strontium, cesium, cerium and rare earth values from radioactive solutions
Assignee: Individual
•
Filing: 1963-03-11
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Granted: 1967-02-07
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Expires: 1983-03-11
Abstract
No abstract record available.
Inventors
- 👤 Lane A Bray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:56
CPC Classifications
G; G21; G21C; G21C19/00; G21C19/42; G21C19/44; G21C19/46; C; C01; C01D; C01D17/00; C01F; C01F11/00; C01F11/005; G21F; G21F9/00; G21F9/007; G21F9/04; G21F9/06; G21F9/12; G21F9/125; G21G; G21G1/00; G21G1/001; G21G2001/0068; G21G2001/0094; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y02W; Y02W30/00; Y02W30/50
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
120 words
A PROCESS OF COEXTRACTING STRONTIUM, CESIUM, CERIUM AND OTHER LANTHANIDE RATE EARTH VALUES FROM AN AQUEOUS SOLTION CONTAINING SUCH VALUES COMPRISING: ADJUSTING THE PH OF SAID SOLUTION TO A VALUE OF BETWEEN 3 AND 5; CONTACTING SAID AQUEOUS SOLUTIONWITH A SUBSTANTIALLY WATERIMMISCIBLE ALIPHATIC HYDROCARBON SOLUTION CONTAINING A WATER-IMMISCIBLE PHENOL SELECTED FROM A GROUP CONSISTING OF 4-SEC-BUTYL-2-(A METHYL BENZYL) PHENOL, O-PHENYLPHENOL, P-DODECYLPHENOL, P-CHLORO-O-BENZYLAPHENOL AND 4TERT-BUTYL-2-(A METHYL BENZYL) PHENOL AND A WATER-IMMISCIBLE ALKYL PHOSPHORIC ACID SELECTED FROM A GROUP CONSISTING OF BIS(2-ETHYLEHEXYL) PHOSPHORIC ACID, MONODIISOOCTYL ACID ORTHOPHOSPHATE, MONOISOOCTYL) ACID ORTHOPHOS-D PHATE AND OCTYLPHENYL ACID PHOSPHATE; WHERBY STRONTIUM, CERIUM, CESIUM AND LANTHANIDE RARE EARTH VALUES ARE TAKEN UP BY SAID ALIPHATIC HYDROCARBON SOLUTION; AND SEPARATING SAID ALIPHATIC HYDROCARBON SOLUTION FROM SAID AQUEOUS SOLUTION.
Claim 2
Dependent Claim
120 words
A PROCESS OF COEXTRACTING STRONTIUM, CESIUM, CERIUM AND OTHER LANTHANIDE RATE EARTH VALUES FROM AN AQUEOUS SOLTION CONTAINING SUCH VALUES COMPRISING: ADJUSTING THE PH OF SAID SOLUTION TO A VALUE OF BETWEEN 3 AND 5; CONTACTING SAID AQUEOUS SOLUTIONWITH A SUBSTANTIALLY WATERIMMISCIBLE ALIPHATIC HYDROCARBON SOLUTION CONTAINING A WATER-IMMISCIBLE PHENOL SELECTED FROM A GROUP CONSISTING OF 4-SEC-BUTYL-2-(A METHYL BENZYL) PHENOL, O-PHENYLPHENOL, P-DODECYLPHENOL, P-CHLORO-O-BENZYLAPHENOL AND 4TERT-BUTYL-2-(A METHYL BENZYL) PHENOL AND A WATER-IMMISCIBLE ALKYL PHOSPHORIC ACID SELECTED FROM A GROUP CONSISTING OF BIS(2-ETHYLEHEXYL) PHOSPHORIC ACID, MONODIISOOCTYL ACID ORTHOPHOSPHATE, MONOISOOCTYL) ACID ORTHOPHOS-D PHATE AND OCTYLPHENYL ACID PHOSPHATE; WHERBY STRONTIUM, CERIUM, CESIUM AND LANTHANIDE RARE EARTH VALUES ARE TAKEN UP BY SAID ALIPHATIC HYDROCARBON SOLUTION; AND SEPARATING SAID ALIPHATIC HYDROCARBON SOLUTION FROM SAID AQUEOUS SOLUTION.
Claim 3
Dependent Claim
111 words
A PROCESS OF SEPARATING CESIUM VALUES FROM CERIUM AND STRONTIUM VALES PRESENT TOGETHER IN AN AQUOEUS NITRIC ACID SOLUTION WITH A PH OF 4 COMPRISING: CONTACTING SAID AQUEOUS SOLUTIONK WITH A ALIPHATIC HYDROCARBON SOLUTION 0.3 M IN DI(2-ETHYLHEXYL) PHOSPHORIC ACID AND NOT MORE THAN 0.01 M IN 4-SEC-BUTYL-2-(A EMTHYL BENZYL) PHENOL, WHEREBY CERIUM AND STRONTIUM ARE TAKEN UP BY SAID HYDROCARBON SOLUTION; SEPARATING SAID HYDROCARBON SOLUTION FROM SAID AQUEOUS SOLUTION; THEN CONTACTING SAID AQUOUS SOLUTION WITH A SECOND HYDROCARBON SOLUTION 0.3 M IN DI(2-ETHYLHEXYL) PHOSPHORIC ACID AND AT LEAST 0.15 M IN 4-SEC-BUTYL-2-(A METHYL BENZYL) PHENOL, WHEREBY CESIUM VALUES ARE EXTRACTED; AND SEPARATING SAID SECOND HYDROCARBON SOLUTION FROM SAID AQUEOUS SOLUTION.
Claim 4
Dependent Claim
111 words
A PROCESS OF SEPARATING CESIUM VALUES FROM CERIUM AND STRONTIUM VALES PRESENT TOGETHER IN AN AQUOEUS NITRIC ACID SOLUTION WITH A PH OF 4 COMPRISING: CONTACTING SAID AQUEOUS SOLUTIONK WITH A ALIPHATIC HYDROCARBON SOLUTION 0.3 M IN DI(2-ETHYLHEXYL) PHOSPHORIC ACID AND NOT MORE THAN 0.01 M IN 4-SEC-BUTYL-2-(A EMTHYL BENZYL) PHENOL, WHEREBY CERIUM AND STRONTIUM ARE TAKEN UP BY SAID HYDROCARBON SOLUTION; SEPARATING SAID HYDROCARBON SOLUTION FROM SAID AQUEOUS SOLUTION; THEN CONTACTING SAID AQUOUS SOLUTION WITH A SECOND HYDROCARBON SOLUTION 0.3 M IN DI(2-ETHYLHEXYL) PHOSPHORIC ACID AND AT LEAST 0.15 M IN 4-SEC-BUTYL-2-(A METHYL BENZYL) PHENOL, WHEREBY CESIUM VALUES ARE EXTRACTED; AND SEPARATING SAID SECOND HYDROCARBON SOLUTION FROM SAID AQUEOUS 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) | 1970-02-06 | 1970-08-08 | 1971-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-06 | 1974-08-08 | 1975-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-06 | 1978-08-08 | 1979-02-07 | $7700.00 | Window Closed / Lapsed |