Patent US3101998A successfully refreshed from Google Patents.
US3101998A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of treating radioactive wastes
Assignee: Air Products and Chemicals Inc
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Filing: 1958-09-19
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Granted: 1963-08-27
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Expires: 1978-09-19
Abstract
No abstract record available.
Inventors
- 👤 Jr Thomas H Milliken
- 👤 Jack H Krause
- 👤 Joseph J Donovan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:58
CPC Classifications
G; G21; G21F; G21F9/00; G21F9/04; G21F9/06; G21F9/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
THE PROCESS FOR THE SEPARATION OF ADSORBABLE RADIOACTIVE CESIUM AND STRONTIUM FROM FISSION REACTION NITRATE WASTE LIQUORS CONTAINING THE SAME AND SUBSTANTIALLY GREATER BULK AMOUNTS OF NORMALLY ADSORBABLE NON-RADIOACTIVE IONS, SUCH PROCESS COMPRISING TREATING SUCH A LIQUOR WITH AN ADDITIVE COMPRISIN AT LEAST ONE OF THE COMPOUNDS SELECTED FROM THE GROUP CONSISTING OF THE ALKALI-FREE ISOPROPYLATES OF ALUMINUM AND ZIRCONIUM, AND THE ALKALI-FREE OXYCARBONATE OF ZIRCONIUM, THEREBY FORMING WITH SAID ADDITIVE A SOL INCLUDING SAID NORMALLY ADSORBABLE NONRADIOACTIVE IONS, WHEREBY SAID NON-RADIOACTIVE IONS IN SAID SOL HAVE NO APPRECIABLE AFFINITY FOR ADSORPTION SITES ON HYDROGEN ION EXCHANGE MATERIAL; CONTACTING SAID TREATED LIQUOR WITH HYROGEN ION EXCHANGE MATERIAL AND ADSORBING BY SAID CONTACT SUBSTANTIALLY ALL OF SAID RADIOACTIVE CESIUM AND STRONTIUM; AND SEPARATING SAID CONTACTED ION EXCHANGE MATERIAL CONTAINING ADSORBED RADIOACTIVE CESIUM AND STRONITIUM.
Claim 2
Dependent Claim
133 words
THE PROCESS FOR THE SEPARATION OF ADSORBABLE RADIOACTIVE CESIUM AND STRONTIUM FROM FISSION REACTION NITRATE WASTE LIQUORS CONTAINING THE SAME AND SUBSTANTIALLY GREATER BULK AMOUNTS OF NORMALLY ADSORBABLE NON-RADIOACTIVE IONS, SUCH PROCESS COMPRISING TREATING SUCH A LIQUOR WITH AN ADDITIVE COMPRISIN AT LEAST ONE OF THE COMPOUNDS SELECTED FROM THE GROUP CONSISTING OF THE ALKALI-FREE ISOPROPYLATES OF ALUMINUM AND ZIRCONIUM, AND THE ALKALI-FREE OXYCARBONATE OF ZIRCONIUM, THEREBY FORMING WITH SAID ADDITIVE A SOL INCLUDING SAID NORMALLY ADSORBABLE NONRADIOACTIVE IONS, WHEREBY SAID NON-RADIOACTIVE IONS IN SAID SOL HAVE NO APPRECIABLE AFFINITY FOR ADSORPTION SITES ON HYDROGEN ION EXCHANGE MATERIAL; CONTACTING SAID TREATED LIQUOR WITH HYROGEN ION EXCHANGE MATERIAL AND ADSORBING BY SAID CONTACT SUBSTANTIALLY ALL OF SAID RADIOACTIVE CESIUM AND STRONTIUM; AND SEPARATING SAID CONTACTED ION EXCHANGE MATERIAL CONTAINING ADSORBED RADIOACTIVE CESIUM AND STRONITIUM.
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) | 1966-08-26 | 1967-02-25 | 1967-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-26 | 1971-02-25 | 1971-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-26 | 1975-02-25 | 1975-08-27 | $7700.00 | Window Closed / Lapsed |