Method for preparing dry-collected fume for use in metallurgical furnaces
US4003736A · kind A · utility
4Cited by
8References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 1, 1975 |
| Grant date | Jan 18, 1977 |
| Priority date | — |
| Expiry date | Jul 1, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method for preparing strong, stable "green" balls of dry-collected iron-bearing fume, which contains not less than about 8% combined amount of lime (CaO) and magnesia (MgO). The fume is charged to a balling device where there is added to the fume a quantity of water equal to both the stoichiometric amount required to completely hydrate such lime and magnesia and to produce in the green balls a water content between about 7% - 12%. The residence time of the fume on the balling device is not less than about 8 minutes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.