Method of lancing for a copper-producing converter
US4661152A · kind A · utility
3Cited by
2References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 21, 1985 |
| Grant date | Apr 28, 1987 |
| Priority date | — |
| Expiry date | Nov 21, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22B15/0043
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of oxygen lancing for a copper-producing converter. An oxygen-enriched gas, such as oxygen-enriched air or pure oxygen, having a gage pressure of at least 1 kg/cm.sup.2 is blown onto the surface of a molten bath through at least one top lancing tube of the non-immersion type having a lower end located within the converter and held at a height within 0.4 m above the surface of the bath as measured when the bath is at a standstill, while air is simultaneously blown into the bath through tuyeres.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.