Steelmaking additive composition
US4417924A · kind A · utility
13Cited by
2References
18Claims
0Family size
Inventor
Key dates
| Filing date | Sep 30, 1982 |
| Grant date | Nov 29, 1983 |
| Priority date | — |
| Expiry date | Sep 30, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Steelmaking additive compositions and process of use, said compositions providing flux solubilization, desulfurization and/or removal of inclusions. The compositions comprise from about 25 to 50 wt % lime and about 75 to 50 wt % calcium aluminate; alternatively, the compositions comprise from about 40 to 70 wt % CaO, 20 to 50 wt % Al.sub.2 O.sub.3 and 0 to 30 wt % MgO. The process consists of the addition, in the course of steelmaking utilizing electric furnace, basic oxygen furnace, AOD furnace or open hearth furnace means, of the steelmaking additive compositions of the invention to either the furnace, ladle and/or tundish.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.