Process for introducing additive substances which are capable of flow into a metallurgical vessel and a vessel for that process
US5201941A · kind A · utility
5Cited by
4References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 23, 1991 |
| Grant date | Apr 13, 1993 |
| Priority date | — |
| Expiry date | Aug 23, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
For the metallurgical treatment of a molten metal bath (1) in a metallurgical smelting and refining vessel (3), additive substances (43) which are capable of flow, in particular lime, are supplied in a granular to dust state, at least during a part of the refining phase, to the upper region of the inward side (15') of the vessel wall (11), distributed around the periphery thereof. At the vessel wall (11) the additive substances (43) form a barrier or protective layer which reduces the energy losses and increases the service life of the vessel (3).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.