US3194652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removal of metal contaminants from nickel-containing process solutions
Assignee: Huntington Alloys Corp
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Filing: 1963-08-19
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Granted: 1965-07-13
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Expires: 1983-08-19
Abstract
No abstract record available.
Inventors
- 👤 Clifford Warren Eugene
- 👤 Mcclaine Leslie Andrew
- 👤 George James Henry Bryn
- 👤 Charles E O'neill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 03:14
CPC Classifications
C; C22; C22B; C22B3/00; C22B3/20; C22B3/26; C22B3/33; C22B3/28; C22B3/40; C22B3/402; Y; Y02; Y02P; Y02P10/00; Y02P10/20
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
123 words
AN IMPROVED SOLVENT EXTRACTION PROCESS FOR REMOVING METAL CONTAMINANTS FROM NICKEL-CONTAINING PROCESS SOLUTIONS WHICH COMPRISES TREATING A NICKEL-CONTAINING AQUEOUS FEED SOLUTION HAVING A PH BELOW ABOUT 6.5 AND CONTAINING AT LEAST ONE METAL COMTAMINANT FROM THE GROUP CONSISTING OF COBALT, IRON, COPPER, LEAD AND ZINE WITH A SOLUTION OF AT LEAST ONE WATER-INSOLUBLE EXTRACTANT SELECTED FROM THE GROUP CONSISTING OF THE QUATERNARY AMMONIUM CHLORIDES, THIOCYANATES, IODIDES, BROMIDES, NITRITES, AZIDES, TUNGSTATES AND MOLYBDATES IN A WATER-IMMISCIBLE ORGANIC SOLVENT TO REMOVE METAL CONTAMINANTS THEREFROM IN A METAL-BEARING ORGANIC PHASE AND TO MAINTAIN THE NICKEL IN THE AQUEOUS PHASE, STRIPPING METAL CONTAMINANTS FROM SAID METAL-BEARING ORGANIC PHASE WITH A STRIPPING AGENT AND REGENERATING SAID EXTRACTANT FOR REUSE IN TREATING FURTHER NICKEL PROCESS SOLUTION CONTAINING METAL CONTAMINANTS.
Claim 2
Dependent Claim
123 words
AN IMPROVED SOLVENT EXTRACTION PROCESS FOR REMOVING METAL CONTAMINANTS FROM NICKEL-CONTAINING PROCESS SOLUTIONS WHICH COMPRISES TREATING A NICKEL-CONTAINING AQUEOUS FEED SOLUTION HAVING A PH BELOW ABOUT 6.5 AND CONTAINING AT LEAST ONE METAL COMTAMINANT FROM THE GROUP CONSISTING OF COBALT, IRON, COPPER, LEAD AND ZINE WITH A SOLUTION OF AT LEAST ONE WATER-INSOLUBLE EXTRACTANT SELECTED FROM THE GROUP CONSISTING OF THE QUATERNARY AMMONIUM CHLORIDES, THIOCYANATES, IODIDES, BROMIDES, NITRITES, AZIDES, TUNGSTATES AND MOLYBDATES IN A WATER-IMMISCIBLE ORGANIC SOLVENT TO REMOVE METAL CONTAMINANTS THEREFROM IN A METAL-BEARING ORGANIC PHASE AND TO MAINTAIN THE NICKEL IN THE AQUEOUS PHASE, STRIPPING METAL CONTAMINANTS FROM SAID METAL-BEARING ORGANIC PHASE WITH A STRIPPING AGENT AND REGENERATING SAID EXTRACTANT FOR REUSE IN TREATING FURTHER NICKEL PROCESS SOLUTION CONTAINING METAL CONTAMINANTS.
Claim 3
Dependent Claim
37 words
AN IMPROVED SOLVENT EXTRACTION PROCESS FOR REMOVING METAL CONTAMINANTS FROM NICKEL-CONTAINING PROCESS SOLUTIONS WHICH COMPRISES TREATING A NICKEL-CONTAINING AQUEOUS FEED SOLUTION HAVING A PH BELOW ABOUT 6.5 AND CONTAINING AT LEAST ONE METAL CONTAMINANT FROM THE GROUP
Claim 4
Dependent Claim
37 words
AN IMPROVED SOLVENT EXTRACTION PROCESS FOR REMOVING METAL CONTAMINANTS FROM NICKEL-CONTAINING PROCESS SOLUTIONS WHICH COMPRISES TREATING A NICKEL-CONTAINING AQUEOUS FEED SOLUTION HAVING A PH BELOW ABOUT 6.5 AND CONTAINING AT LEAST ONE METAL CONTAMINANT FROM THE GROUP
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) | 1968-07-12 | 1969-01-11 | 1969-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-12 | 1973-01-11 | 1973-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-12 | 1977-01-11 | 1977-07-13 | $7700.00 | Window Closed / Lapsed |