Patent US3256204A successfully refreshed from Google Patents.
US3256204A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal oxide aquasols and their preparation by liquid-liquid ion exchange
Assignee: Diamond Shamrock Corp
•
Filing: 1963-02-13
•
Granted: 1966-06-14
•
Expires: 1983-02-13
Abstract
No abstract record available.
Inventors
- 👤 Thomas L O'connor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:11
CPC Classifications
B; B01; B01J; B01J13/00; B01J13/0004; B01J13/0047; B01J13/0008; B01J13/0017; Y; Y10; Y10S; Y10S264/00; Y10S264/19
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
A METHOD FOR THE PREPARATIN OF A POLYVALENT METAL OXIDE AQUASOL OF A METAL WHOSE OXIDE IS INSOLUBLE IN WATER BUT AT LEAST ONE OF WHOSE SALTS IS SOLUBLE IN WATER, WHICH METHOD COMPRISES THE STEPS OF REMOVING THE SOLUBILIZING IONS FROM AN AQUEOUS SOLUTION OF A SALT OF SAID METAL BY INTIMATELY MIXING SAID SOLUTION WITH A SOLUTION IN A WATER-IMMISCIBLE ORGANIC SOLVENT OF A HIGH MOLECULAR WEIGHT, WATER-INSOLUBLE ORGANIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALKLY ACIDS AND ALKYL AMINES, SAID ORGANIC SOLVENT BEING ONE IN WHICH SAID ORGANIC COMPOUND IS SUBSTANTIALLY SOLUBLE; ALLOWING THE MIXTURE TO SEPARATE INTO AN ORGANIC AND AN AQUEOUS PHASE; AND REMOVING THE AQUEOUS PHASE WHICH COMPRISES SAID METAL OXIDE AQUASOL.
Claim 2
Independent Claim
119 words
A METHOD FOR THE PREPARATIN OF A POLYVALENT METAL OXIDE AQUASOL OF A METAL WHOSE OXIDE IS INSOLUBLE IN WATER BUT AT LEAST ONE OF WHOSE SALTS IS SOLUBLE IN WATER, WHICH METHOD COMPRISES THE STEPS OF REMOVING THE SOLUBILIZING IONS FROM AN AQUEOUS SOLUTION OF A SALT OF SAID METAL BY INTIMATELY MIXING SAID SOLUTION WITH A SOLUTION IN A WATER-IMMISCIBLE ORGANIC SOLVENT OF A HIGH MOLECULAR WEIGHT, WATER-INSOLUBLE ORGANIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALKLY ACIDS AND ALKYL AMINES, SAID ORGANIC SOLVENT BEING ONE IN WHICH SAID ORGANIC COMPOUND IS SUBSTANTIALLY SOLUBLE; ALLOWING THE MIXTURE TO SEPARATE INTO AN ORGANIC AND AN AQUEOUS PHASE; AND REMOVING THE AQUEOUS PHASE WHICH COMPRISES SAID METAL OXIDE AQUASOL.
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) | 1969-06-13 | 1969-12-13 | 1970-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-13 | 1973-12-13 | 1974-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-13 | 1977-12-13 | 1978-06-14 | $7700.00 | Window Closed / Lapsed |