Process for desulfurizing molten metals
US3944476A · kind A · utility
4Cited by
3References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 20, 1974 |
| Grant date | Mar 16, 1976 |
| Priority date | — |
| Expiry date | May 20, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Process for decreasing the sulfur content of liquid metal using high temperature comprising passing a direct current by means of two electrodes through a solid electrolyte constituting a refractory wall of oxide having anionic conductivity through the oxygen (O.sup.-.sup.-) ions and also cationic conductivity through ions which are capable of reacting with the sulfur, wherein the metal to be purified forms the negative electrode. The process is particularly adapted to desulfurizing iron and ferrous alloys when present in the liquid state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.