US3415616A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extraction of vanadium and molybdenum with a phenolic oxime
Assignee: General Mills Inc
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Filing: 1966-03-03
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Granted: 1968-12-10
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Expires: 1986-03-03
Abstract
No abstract record available.
Inventors
- 👤 Donnell W Agers
- 👤 Ronald R Swanson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:24
CPC Classifications
C; C01; C01G; C01G39/00; C01G39/003; C01G31/00; C01G31/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
A PROCESS FOR THE SEPARATION OF METAL VALUES SELECTED FROM THE GROUP CONSISTING OF VANADIUM AND MOLYBDENUM FROM AN AQUEOUS SOLUTION CONTAINING THE SAME, COMPRISING: (1) CONTACTING SAID AQUEOUS SOLUTION WITH AN ORGANIC PHASE COMPRISING A LIQUID HYDROCARBON AND A 2-HYDROXY BENZEPHENOXIME SELECTED FROM THE GROUP CONSISTING OF ALKYL SUBSTITUTED AND ALKOXY SUBSTITUTED 2-HYDROXY BENZOPHENOXIMES TO EXTRACT AT LEAST A PORTION OF THE SAID METAL VALUES INTO THE ORGANIC PHASE, SAID 2-HYDROXY BENZOPHENOXIME HAVING A SOLUBILITY OF AT LEAST 2% BY WEIGHT IN THE LIQUID HYDROCARBON, AND (2) SEPARATING THE RESULTANT METAL-PREGNANT ORGANIC PHASE FROM THE AQUEOUS PHASE.
Claim 2
Dependent Claim
98 words
A PROCESS FOR THE SEPARATION OF METAL VALUES SELECTED FROM THE GROUP CONSISTING OF VANADIUM AND MOLYBDENUM FROM AN AQUEOUS SOLUTION CONTAINING THE SAME, COMPRISING: (1) CONTACTING SAID AQUEOUS SOLUTION WITH AN ORGANIC PHASE COMPRISING A LIQUID HYDROCARBON AND A 2-HYDROXY BENZEPHENOXIME SELECTED FROM THE GROUP CONSISTING OF ALKYL SUBSTITUTED AND ALKOXY SUBSTITUTED 2-HYDROXY BENZOPHENOXIMES TO EXTRACT AT LEAST A PORTION OF THE SAID METAL VALUES INTO THE ORGANIC PHASE, SAID 2-HYDROXY BENZOPHENOXIME HAVING A SOLUBILITY OF AT LEAST 2% BY WEIGHT IN THE LIQUID HYDROCARBON, AND (2) SEPARATING THE RESULTANT METAL-PREGNANT ORGANIC PHASE FROM THE AQUEOUS PHASE.
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) | 1971-12-10 | 1972-06-10 | 1972-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-10 | 1976-06-10 | 1976-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-10 | 1980-06-10 | 1980-12-10 | $7700.00 | Window Closed / Lapsed |