Production of sponge iron
US4199349A · kind A · utility
2Cited by
3References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 8, 1977 |
| Grant date | Apr 22, 1980 |
| Priority date | — |
| Expiry date | Sep 8, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S75/962
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for producing feedstock of highly metallized reduced iron from a metalliferrous slurry in which the slurry is subjected to high pressure filtration (9) and the resultant filter cake is then broken up and fed into a kiln (10) for firing together with a reductant. The slurry may be ferruginous waste products from ironmaking/steelmaking processes i.e. in-plant fines and additions may be made to the slurry (1 to 7) to aid the reduction stage of the process or to aid the agglomeration stage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.