Dephosphorization and desulfurization method for molten iron alloy containing chromium
US4450004A · kind A · utility
4Cited by
2References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 2, 1983 |
| Grant date | May 22, 1984 |
| Priority date | — |
| Expiry date | Mar 2, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of dephosphorization and desulfurization for molten iron alloy containing chromium, which adds to the bath of molten iron alloy flux comprising alkaline-earth metal oxide and alkaline-earth halide and further adds to the same the predetermined quantity of oxidizing agent, so that simple, highly efficient and economical dephosphorization and desulfurization are performable to produce high-chromium steel or stainless steel of high quality, iron oxide, chromium oxide or oxidizing gas are used as the oxidizing agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.