Process for producing molten pig iron or steel raw material
US4755219A · kind A · utility
9Cited by
3References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 14, 1987 |
| Grant date | Jul 5, 1988 |
| Priority date | — |
| Expiry date | Jan 14, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/134
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for producing molten pig iron or steel raw material in which iron oxide-containing, preferably pre-reduced raw material particles are introduced from above into a fluidized bed formed from carbonaceous solid particles and an oxygen-containing carrier gas. When the fluidized bed passes through in countercurrent to the carrier gas, the solid particles are heated, reduced and melted. The fluidized bed receives additional energy through plasma heating, in such a way that the plasma energy is supplied level with the entry of the oxygen-containing carrier gas into the fluidized bed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.