Process for the production of chromium of low carbon content by means of fused electrolytic extraction and chromium alloy obtained thereby
Abstract
Abstract A PROCESS AND A CELL ARE DESCRIBED FOR THE PRODUCTION OF CHROMIUM OF LOW CARBON CONTENT BY MEANS OF FUSED ELECTROLYTIC EXTRACTION, THE SAID PROCESS INCLUDING THE USE OF AN ELECTROLYTIC BATH DERIVING FROM A TERNARY SYSTEM SELECTED AMONG THE GROUP COMPRISING THE SYSTEMS THE USE OF AN ELECTROLYTIC BATH DERIVING FROM A TERNARY SYSTEM SELECTED AMONG THE GROUP COMPRISING THE SYSTEMS CR2O3-CAO-AL2O3, CR2O3-MGO-AL2O3 CR2O3-CAO-MGO8 CR2O3-SIO2-CAO AND CR2O3-MGO-SIO AS WELL AS THE COMPLEX SYSTEMS DERIVED FROM COMPOUNDS OF THE SAID TERNARY SYSTEM, AND THE USE OF PREFERENCE OF A CATHODE PROVIDED BY THE METAL TO BE EXTRACTED, SUCH AS THE CHROMIUM OR AN ALLOY OF CHROMIUM WITH ANOTHER METAL PRESENT IN THE ELECTROLYTE AS AN OXIDE.
Inventors
- 👤 Rene Winand
Bibliographic Details
Claims Analysis
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |