US2977185A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the recovery and separation of lithium and aluminum from lithium aluminate complex
Assignee: Dow Chemical Co
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Filing: 1957-01-29
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Granted: 1961-03-28
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Expires: 1977-01-29
Abstract
No abstract record available.
Inventors
- 👤 Robert D Goodenough
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:05
CPC Classifications
C; C01; C01D; C01D15/00; C01D15/02; C01F; C01F7/00; C01F7/02; C01F7/04; C01F7/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A PROCESS FOR THE RECOVERY OF LITHIUM AND ALUMINUM VALUES FROM A SOLID LITHIUM ALUMINATE COMPLEX, WHICH COMPRISES INTERMIXING, IN THE PRESENCE OF WATER, THE SOLID LITHIUM ALUMINATE COMPLEX WITH A SOLID ION EXCHANGE RESIN SELECTED FROM THE GROUP CONSISTING OF ANION EXCHANGE RESINS IN THE HYDROXYL FORM AND CATION EXCHANGE RESIN IN SALT AND HYDROGEN FORM THEREBY DISSOCIATING THE LITHIUM ALUMINATE COMPLEX TO LITHIUM VALUES AND ALUMINUM HYDROXIDE, AND SEPARATING THE LITHIUM VALUES FROM THE ALUMINUM HYDROXIDE.
Claim 2
Dependent Claim
78 words
A PROCESS FOR THE RECOVERY OF LITHIUM AND ALUMINUM VALUES FROM A SOLID LITHIUM ALUMINATE COMPLEX, WHICH COMPRISES INTERMIXING, IN THE PRESENCE OF WATER, THE SOLID LITHIUM ALUMINATE COMPLEX WITH A SOLID ION EXCHANGE RESIN SELECTED FROM THE GROUP CONSISTING OF ANION EXCHANGE RESINS IN THE HYDROXYL FORM AND CATION EXCHANGE RESIN IN SALT AND HYDROGEN FORM THEREBY DISSOCIATING THE LITHIUM ALUMINATE COMPLEX TO LITHIUM VALUES AND ALUMINUM HYDROXIDE, AND SEPARATING THE LITHIUM VALUES FROM THE ALUMINUM HYDROXIDE.
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) | 1964-03-27 | 1964-09-26 | 1965-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-27 | 1968-09-26 | 1969-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-27 | 1972-09-26 | 1973-03-28 | $7700.00 | Window Closed / Lapsed |