Apparatus for direct smelting
US6596223B2 · kind B2 · utility
4Cited by
4References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 3, 2002 |
| Grant date | Jul 22, 2003 |
| Priority date | — |
| Expiry date | Oct 3, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/134
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A direct smelting process for producing iron and/or ferroalloys is provided, which involves forming a molten bath in a metallurgical vessel, supplying feed materials, injecting oxygen containing gas, generating upward movement of the molten material from the molten bath, wherein the oxygen-containing gas is injected by three or more lances, and entraining into the jets of oxygen containing gas a volume of top space gas that is 2-6 times the volume of the injected gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.