Patent US3008974A successfully refreshed from Google Patents.
US3008974A
Expired / Lapsed
US
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Method for the separation of metallic ions by the use on an ion exchange resin
Assignee: Velsicol Chemical LLC
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Filing: 1956-10-05
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Granted: 1961-11-14
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Expires: 1976-10-05
Abstract
No abstract record available.
Inventors
- 👤 Mark M Frimodig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:14
CPC Classifications
B; B01; B01J; B01J47/00; B01J47/10; B01J47/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
193 words
A METHOD FOR THE SEPARATION OF A MIXTURE OF METALLIC IONS BY THE USE OF AN ION EXCHANGE RESIN WHICH INCLUDES THE STEPS OF LOADING A COLUMNAR BED OF ION EXCHANGE RESIN WITH A MIXTURE OF METALLIC IONS TO BE SEPARATED, ADMIXING IN A TURBULENT POOL A STREAM OF WATER HAVING A UNIFORM, PREDETERMINED RATE OF FLOW, A STREAM OF A POWDERED SOLID, AMINO-ACETIC ACID ELUTING AGENT HAVING A UNIFORM, PREDETERMINED RATE OF FLOW AND A STREAM OF A BASE SELECTED FROM THE GROUP CONSISTING OF GASEOUS AMMONIA AND AQUEOUS AMMONIUM HYDROXIDE HAVING A RATE OF FLOW CONTROLLED TO PRODUCE AND AQUEOUS SOLUTION OF THE ELUTING AGENT HAVING A PREDETERMINED PH VALUE, PASSING THE MIXTURE THROUGH A QUIESCENT POOL THEREBY PERMITTING ANY UNDISSOLVED ELUTING AGENT TO SETTLE OUT OF THE SOLUTION AND CONTINUOUSLY FLOWING THE RESULTING SOLUTION FROM THE SAID QUIESCENT POOL INTO THE LOADED COLUMNAR BED OF ION EXCHANGE RESIN TO CAUSE THE ELUTION OF THE ADSORBED METALLIC IONS FROM THE SAID RESIN BED AND FLOWING THE EFFLUENT FROM THE SAID RESIN BED INTO A SECOND COLUMNAR RESIN BED CARRYING ADSORBED METALLIC IONS WHICH ARE DISPLACEABLE BY THE METALLIC IONS BEING SEPARATED.
Claim 2
Independent Claim
193 words
A METHOD FOR THE SEPARATION OF A MIXTURE OF METALLIC IONS BY THE USE OF AN ION EXCHANGE RESIN WHICH INCLUDES THE STEPS OF LOADING A COLUMNAR BED OF ION EXCHANGE RESIN WITH A MIXTURE OF METALLIC IONS TO BE SEPARATED, ADMIXING IN A TURBULENT POOL A STREAM OF WATER HAVING A UNIFORM, PREDETERMINED RATE OF FLOW, A STREAM OF A POWDERED SOLID, AMINO-ACETIC ACID ELUTING AGENT HAVING A UNIFORM, PREDETERMINED RATE OF FLOW AND A STREAM OF A BASE SELECTED FROM THE GROUP CONSISTING OF GASEOUS AMMONIA AND AQUEOUS AMMONIUM HYDROXIDE HAVING A RATE OF FLOW CONTROLLED TO PRODUCE AND AQUEOUS SOLUTION OF THE ELUTING AGENT HAVING A PREDETERMINED PH VALUE, PASSING THE MIXTURE THROUGH A QUIESCENT POOL THEREBY PERMITTING ANY UNDISSOLVED ELUTING AGENT TO SETTLE OUT OF THE SOLUTION AND CONTINUOUSLY FLOWING THE RESULTING SOLUTION FROM THE SAID QUIESCENT POOL INTO THE LOADED COLUMNAR BED OF ION EXCHANGE RESIN TO CAUSE THE ELUTION OF THE ADSORBED METALLIC IONS FROM THE SAID RESIN BED AND FLOWING THE EFFLUENT FROM THE SAID RESIN BED INTO A SECOND COLUMNAR RESIN BED CARRYING ADSORBED METALLIC IONS WHICH ARE DISPLACEABLE BY THE METALLIC IONS BEING SEPARATED.
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) | 1964-11-13 | 1965-05-15 | 1965-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-13 | 1969-05-15 | 1969-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-13 | 1973-05-15 | 1973-11-14 | $7700.00 | Window Closed / Lapsed |