US2830874A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ion exchange process for the recovery and purification of materials
Assignee: Individual
•
Filing: 1950-06-01
•
Granted: 1958-04-15
•
Expires: 1970-06-01
Abstract
No abstract record available.
Inventors
- 👤 Ray S Long
- 👤 Richard H Bailes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:18
CPC Classifications
C; C22; C22B; C22B3/00; C22B3/20; C22B3/42; Y; Y02; Y02P; Y02P10/00; Y02P10/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
IN AN ION EXCHANGE PROCESS FOR SEPARATING VALUES OF A METALLIC ELEMEMT SELECTED FROM THE GROUP CONSISTING OF VANADIUM, MANGANESE, MOLYBDENUMM CHROMIUM AND COBALT WHICH ELEMENT IS CAPABLE OF FORMING LOWER VALEAT CATIONS SOLUBLE IN AQUEOUS SOLUTIONS AN SOLUBLE HIGHER VALENT ANIONS IN A MINERAL ACIDIC AQUEOUS SOLUTION FROM A MIXTURE OF METALLIC ELEMENTS, THE STEPS COMPRISING PRODUCING AN AQUEOUS SOLUTION OF SAID ELEMENTS AS CATIONS, CONTACTING SAID SOLUTION WITH A CATIONIC EXCHANGE RESIN TO ABSORB SAID CATIONS THEREON, CONTACTING SAID RESIN WITH AN AQUEOUS SOLUTION OF AN OXIDIZING AGENT TO CONVERT THE ADSORBED VALUES OF SAID ELEMENT TO SAID HIGHER VALENT STATE ON THE RESIN, AND THEN CONTACTING THE RESIN WITH AN ACIDIC AQUEOUS SOLUTION THEREBY ELUTING VALUES OF SAID ELEMENT AWAY FROM CATIONS REMAINING ON THE RESIN FORMING SAID SOLUBLE ANIONS IN THE EFFLUENTS ELUATE.
Claim 2
Dependent Claim
137 words
IN AN ION EXCHANGE PROCESS FOR SEPARATING VALUES OF A METALLIC ELEMEMT SELECTED FROM THE GROUP CONSISTING OF VANADIUM, MANGANESE, MOLYBDENUMM CHROMIUM AND COBALT WHICH ELEMENT IS CAPABLE OF FORMING LOWER VALEAT CATIONS SOLUBLE IN AQUEOUS SOLUTIONS AN SOLUBLE HIGHER VALENT ANIONS IN A MINERAL ACIDIC AQUEOUS SOLUTION FROM A MIXTURE OF METALLIC ELEMENTS, THE STEPS COMPRISING PRODUCING AN AQUEOUS SOLUTION OF SAID ELEMENTS AS CATIONS, CONTACTING SAID SOLUTION WITH A CATIONIC EXCHANGE RESIN TO ABSORB SAID CATIONS THEREON, CONTACTING SAID RESIN WITH AN AQUEOUS SOLUTION OF AN OXIDIZING AGENT TO CONVERT THE ADSORBED VALUES OF SAID ELEMENT TO SAID HIGHER VALENT STATE ON THE RESIN, AND THEN CONTACTING THE RESIN WITH AN ACIDIC AQUEOUS SOLUTION THEREBY ELUTING VALUES OF SAID ELEMENT AWAY FROM CATIONS REMAINING ON THE RESIN FORMING SAID SOLUBLE ANIONS IN THE EFFLUENTS ELUATE.
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) | 1961-04-14 | 1961-10-14 | 1962-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-14 | 1965-10-14 | 1966-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-14 | 1969-10-14 | 1970-04-15 | $7700.00 | Window Closed / Lapsed |