Patent US3252791A successfully refreshed from Google Patents.
US3252791A
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US
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Separation of metal carbonyls by forming a cobalt complex salt that is insoluble in liquid nickel and iron carbonyl
Assignee: Huntington Alloys Corp
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Filing: 1963-03-20
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Granted: 1966-05-24
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Expires: 1983-03-20
Abstract
No abstract record available.
Inventors
- 👤 Frysinger Galen Royer
- 👤 Beutner Heinz Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:05
CPC Classifications
C; C22; C22B; C22B3/00; C22B3/20; C22B3/26; C22B3/28; C01; C01G; C01G51/00; C01G51/02; C07; C07F; C07F15/00; C07F15/02; C07F15/025; C07F15/06; C07F15/065; C22B23/00; C22B23/06; C22B23/065; C22B5/00; C22B5/02; C22B5/20; Y; Y02; Y02P; Y02P10/00; Y02P10/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
A PROCESS FOR REMOVING COBALT FROM A LIQUID MIXTURE OF CARBONYLS OF COBALT AND AT LEAST ONE METAL FROM THE GROUP CONSISTING OF IRON AND NICKEL WHICH COMPRISES TREATING SAID LIQUID MIXTURE OF CARBONYLS WITH A COBALT CARBONYL COMPLEXING AGENT FROM THE GROUP CONSISTING OF ANHYDROUS AMMONIA, MONOMETHYL AMINE, DIMETHYL AMINE, MONOETHYL AMINE, DIETHYL AMINE, ETHYLENE IMINE, MONOETHANOLAMINE, DI-ETHANOLAMINE, TRI-ETHANOLAMINE, ACETONITRILE, FORMAMIDE, ACETAMIDE AND DIACETYLDIANIL TO REACT WITH COBALT CARBONYL AND FORM A COMPLEX COBALT SALT, SUBSTANTIALLY INSOLUBLE IN NICKEL AND IRON CARBONYL, AND LEAVE UNREACTED METAL CARBONYLS; AND REMOVING SAID COMPLEX COBALT SALT, SUBSTANTIALLY FREE FROM IRON AND NICKEL, FROM SAID UNREACTED METAL CARBONYLS.
Claim 2
Dependent Claim
105 words
A PROCESS FOR REMOVING COBALT FROM A LIQUID MIXTURE OF CARBONYLS OF COBALT AND AT LEAST ONE METAL FROM THE GROUP CONSISTING OF IRON AND NICKEL WHICH COMPRISES TREATING SAID LIQUID MIXTURE OF CARBONYLS WITH A COBALT CARBONYL COMPLEXING AGENT FROM THE GROUP CONSISTING OF ANHYDROUS AMMONIA, MONOMETHYL AMINE, DIMETHYL AMINE, MONOETHYL AMINE, DIETHYL AMINE, ETHYLENE IMINE, MONOETHANOLAMINE, DI-ETHANOLAMINE, TRI-ETHANOLAMINE, ACETONITRILE, FORMAMIDE, ACETAMIDE AND DIACETYLDIANIL TO REACT WITH COBALT CARBONYL AND FORM A COMPLEX COBALT SALT, SUBSTANTIALLY INSOLUBLE IN NICKEL AND IRON CARBONYL, AND LEAVE UNREACTED METAL CARBONYLS; AND REMOVING SAID COMPLEX COBALT SALT, SUBSTANTIALLY FREE FROM IRON AND NICKEL, FROM SAID UNREACTED METAL CARBONYLS.
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) | 1969-05-23 | 1969-11-22 | 1970-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-23 | 1973-11-22 | 1974-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-23 | 1977-11-22 | 1978-05-24 | $7700.00 | Window Closed / Lapsed |