Patent US3188169A successfully refreshed from Google Patents.
US3188169A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separation of metal values by cation exchange from concentrated perchloric acid solution
Assignee: Individual
•
Filing: 1962-09-20
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Granted: 1965-06-08
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Expires: 1982-09-20
Abstract
No abstract record available.
Inventors
- 👤 Kurt A Kraus
- 👤 Nelson Fred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:50
CPC Classifications
B; B01; B01D; B01D15/00; B01D15/08; B01D15/26; B01D15/36; B01D15/361; B01D15/362; G; G21; G21C; G21C19/00; G21C19/42; G21C19/44; G21C19/46; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y02W; Y02W30/00; Y02W30/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
228 words
THE METHOD OF SEPARATING VALUES OF AT LEAST ONE METAL IN A FIRST GROUP CONSISTING OF LI (I), K (I) RB (I), AG (I), TL (I), BE (II), MG (II), BA (II), RA (II), MN (II), CO (II), ZN (II), CU (II), CD (II), HG (II), PD (II), AU (III), CR (III), IN (III), RH (III), SB (III), IR (III), AL (III), TI (VI), ZR (IV), HF (IV), GE (IV), SN (IV), PO (IV), V (IV), IR (IV), PT (IV), PD (IV), RU (IV), NB (V), TA (V), PA (V), AS (V), V (V), MO (VI), W (VI), TE (VI), TC (VII) AND RE (VII) FROM VALUES OF AT LEAST ONE METAL IN A SECOND GROUP CONSISTING OF CA (II), TI (III), SC (III), Y (III), RARE EARTHS (III), TRIVALENT ACTINIDES (III), FE (III), GA (III), TH (IV), SB (V), U (VI), PU (VI) AND NP (VI) WHICH COMPRISES CONTACTING AN AQUEOUS SO UTION CONTAINING VALUES FROM BOTH OF SAID GROUPS TOGETHER WITH PERCHLORIC ACID AT A CONCENTRATION OF AT LEAST 6 MOLAR, HYDROFLUORIC ACID AT A CONCENTRATION OF 0.01 TO 1.0 MOLAR AND HYDROCHLORIC ACID AT A CONCENTRATION OF ABOUT 0.5 MOLAR, WITH A CATION EXCHANGE RESIN WHEREBY SAID VALUES FROM SAID SECOND GROUP ARE STRONGLY ADSORBED AND A PORTION OF SAID VALUES FROM SAID FIRST GROUP ARE WEAKLY ADSORBED AND SELECTIVELY ELUTING SAID WEAKLY ADSORBED VALUES.
Claim 2
Independent Claim
228 words
THE METHOD OF SEPARATING VALUES OF AT LEAST ONE METAL IN A FIRST GROUP CONSISTING OF LI (I), K (I) RB (I), AG (I), TL (I), BE (II), MG (II), BA (II), RA (II), MN (II), CO (II), ZN (II), CU (II), CD (II), HG (II), PD (II), AU (III), CR (III), IN (III), RH (III), SB (III), IR (III), AL (III), TI (VI), ZR (IV), HF (IV), GE (IV), SN (IV), PO (IV), V (IV), IR (IV), PT (IV), PD (IV), RU (IV), NB (V), TA (V), PA (V), AS (V), V (V), MO (VI), W (VI), TE (VI), TC (VII) AND RE (VII) FROM VALUES OF AT LEAST ONE METAL IN A SECOND GROUP CONSISTING OF CA (II), TI (III), SC (III), Y (III), RARE EARTHS (III), TRIVALENT ACTINIDES (III), FE (III), GA (III), TH (IV), SB (V), U (VI), PU (VI) AND NP (VI) WHICH COMPRISES CONTACTING AN AQUEOUS SO UTION CONTAINING VALUES FROM BOTH OF SAID GROUPS TOGETHER WITH PERCHLORIC ACID AT A CONCENTRATION OF AT LEAST 6 MOLAR, HYDROFLUORIC ACID AT A CONCENTRATION OF 0.01 TO 1.0 MOLAR AND HYDROCHLORIC ACID AT A CONCENTRATION OF ABOUT 0.5 MOLAR, WITH A CATION EXCHANGE RESIN WHEREBY SAID VALUES FROM SAID SECOND GROUP ARE STRONGLY ADSORBED AND A PORTION OF SAID VALUES FROM SAID FIRST GROUP ARE WEAKLY ADSORBED AND SELECTIVELY ELUTING SAID WEAKLY ADSORBED VALUES.
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) | 1968-06-07 | 1968-12-07 | 1969-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-07 | 1972-12-07 | 1973-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-07 | 1976-12-07 | 1977-06-08 | $7700.00 | Window Closed / Lapsed |