Process for refining of a bath of metal containing cold solid substances
US4349382A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 28, 1980 |
| Grant date | Sep 14, 1982 |
| Priority date | — |
| Expiry date | Apr 28, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for refining a metal bath in a converter by oxygen blowing, particularly a molten metal liquid bath containing cold, solid substances, notably of scrap. Oxygen is distributed over the surface of the bath, so that there will be an after-combustion of CO released in the course of decarbonization. The thickness and consistency of a slag layer formed over the bath is actively regulated by injecting a rising inert gas through the bottom of the bath. The flow of rising gas may be regulated depending upon the oxygen content in the fumes of the converter, or upon the intensity of emission through the top of an oxygen blowing lance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.