METHOD OF LANCING FOR A COPPER PRODUCING CONVERTER

摘要

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/cm2 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.