US2684331A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separation of substances having different degrees of ionization
Assignee: Dow Chemical Co
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Filing: 1952-01-11
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Granted: 1954-07-20
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Expires: 1972-01-11
Abstract
No abstract record available.
Inventors
- 👤 William C Bauman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:33
CPC Classifications
B; B01; B01J; B01J39/00; B01J39/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
167 words
A METHOD FOR SEPARATING FROM ONE ANOTHER A HIGHLY IONIZED SOLUTE HAVING AN IONIZATION CONSTANT AT LEAST AS GREAT AS 5X10-2 AND A LESS EXTENSIVELY IONIZED SOLUTE THAT IS CAPABLE OF BEING ABSORBED BY AN ION EXCHANGE RESIN AND THAT HAS AN IONIZATION CONSTANT NOT EXCEEDING 2X10-1 AND NOT MORE THAN 70 PER CENT AS GREAT AS THAT OF THE HIGHLY IONIZE SOLUTE, WHICH METHOD COMPRISES FEEDING, TO A WATER-IMMERSED BED OF AN ION EXCHANGE RESIN HAVING AN ION IDENTICAL WITH AN ION OF THE HIGHLY IONIZED SOLUTE, AN AQUEOUS SOLUTION OF SUCH SOLUTES AND THUS DISPLACING WATER FROM THE BED OF RESIN, THEREAFTER FEEDING WATER TO THE BED TO DISPLACE A FURTHER AMOUNT OF LIQUID FROM THE BED, AND COLLECTING SUCCESSIVE FRACTIONS OF THE DISPLACED EFFLUENT LIQUID, WHEREBY THERE IS OBTAINED A FRACTION OF THE EFFLUENT LIQUID WHICH CONTAINS A MAJOR PORTION OF THE HIGHLY IONIZED SOLUTE AND A SUBSEQUENT FRACTION OF THE EFFLUENT LIQUID WHICH CONTAINS A MAJOR PORTION OF THE LESS EXTENSIVELY IONIZED SOLUTE.
Claim 2
Independent Claim
167 words
A METHOD FOR SEPARATING FROM ONE ANOTHER A HIGHLY IONIZED SOLUTE HAVING AN IONIZATION CONSTANT AT LEAST AS GREAT AS 5X10-2 AND A LESS EXTENSIVELY IONIZED SOLUTE THAT IS CAPABLE OF BEING ABSORBED BY AN ION EXCHANGE RESIN AND THAT HAS AN IONIZATION CONSTANT NOT EXCEEDING 2X10-1 AND NOT MORE THAN 70 PER CENT AS GREAT AS THAT OF THE HIGHLY IONIZE SOLUTE, WHICH METHOD COMPRISES FEEDING, TO A WATER-IMMERSED BED OF AN ION EXCHANGE RESIN HAVING AN ION IDENTICAL WITH AN ION OF THE HIGHLY IONIZED SOLUTE, AN AQUEOUS SOLUTION OF SUCH SOLUTES AND THUS DISPLACING WATER FROM THE BED OF RESIN, THEREAFTER FEEDING WATER TO THE BED TO DISPLACE A FURTHER AMOUNT OF LIQUID FROM THE BED, AND COLLECTING SUCCESSIVE FRACTIONS OF THE DISPLACED EFFLUENT LIQUID, WHEREBY THERE IS OBTAINED A FRACTION OF THE EFFLUENT LIQUID WHICH CONTAINS A MAJOR PORTION OF THE HIGHLY IONIZED SOLUTE AND A SUBSEQUENT FRACTION OF THE EFFLUENT LIQUID WHICH CONTAINS A MAJOR PORTION OF THE LESS EXTENSIVELY IONIZED SOLUTE.
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) | 1957-07-19 | 1958-01-18 | 1958-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-07-19 | 1962-01-18 | 1962-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-07-19 | 1966-01-18 | 1966-07-20 | $7700.00 | Window Closed / Lapsed |