Method for producing metallic iron
US7674316B2 · kind B2 · utility
0Cited by
12References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 31, 2008 |
| Grant date | Mar 9, 2010 |
| Priority date | — |
| Expiry date | Jul 31, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/134
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A hearth material is laid in the form of a layer on the hearth prior to supply of a mixture containing a carbonaceous reducing agent and iron oxides onto a hearth of a reduction melting furnace, thereby forming a renewable hearth capable of being renewed, and the metallic iron is produced while renewing a part or the whole of the renewable hearth, which has deteriorated during operation, with the hearth material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.