... is MgO and C, the leading role is slag conditioner to convertor, can reduce the degree of slag, improved the viscosity ... slag , the slag MgO content from 3.0%~4.5% to 8.0~12.0%, provide an effective protective layer, thereby ... of molten steel and desulfurization Carbon content can regulate according to the converter of steel plant, smelting type of steel, operating methods ...