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综述了近年来高炉铁水炉外脱硫的发展现状和进展。对几种常用炉外脱硫剂的脱硫效果和利弊进行了对比分析，提出了目前采用镁基脱硫剂进行深度脱硫是我国发展优质钢材、提高企业竞争力的良好机遇。
The status and development of desulphurization outside blast furnace hot metal furnace in recent years are summarized. The desulphurization effect and advantages and disadvantages of several commonly used out-of-furnace desulphurization agents are compared and analyzed. It is proposed that the deep desulphurization using magnesium-based desulphurization agent is a good opportunity for our country to develop high-quality steel and improve the competitiveness of enterprises.