高碳锰铁氧化脱磷的试验研究  

RESEARCH ON OXIDATIVE DEPHOSPHORIZATION OF HIGH CARBON FERROMANGANESE

作　　者：康伟 廖相巍 尚德礼 康磊 许孟春 李德刚 KANG Wei;LIAO Xiangwei;SHANG Deli;KANG Lei;XU Mengchun;LI Degang(State Key Laboratory of Metal Materials for Marine Equipment and Application, Anshan 114009, China;Iron & Steel Research Institutes of Ansteel Group Corporation, Anshan 114009, China)

机构地区：[1]海洋装备用金属材料及其应用国家重点实验室,鞍山中国114009 [2]鞍钢集团钢铁研究院,鞍山中国114009

出　　处：《铁合金》2019年第1期25-27,30,共4页Ferro-alloys

摘　　要：进行了高碳锰铁脱磷的相关研究,结果表明理论上CaO-FeO-MnO渣系具有在锰铁冶炼温度下的脱磷能力,脱磷试验表明大渣量CaO-FeO-MnO-CaF_2渣系可以将高碳锰铁中磷降低到0.2%以下,同时杂质元素钛、硅、硫、氮均有较大幅度降低,起到了提纯锰铁的作用;硅钙合金结合氧化性脱磷渣复合使用,可以实现高碳锰铁深脱磷,使高碳锰铁P <0.1%,同时硅、碳、硫、氮也有降低,但不降低钛含量。Dephosphorization of high carbon ferromanganese has been carried out and the results were obtained as follows: the slag system(CaO-FeO-MnO) has the dephosphorization ability at the temperature of ferromanganese smelting. The phosphorus content can be reduced to less than 0.2% in high carbon ferromanganese with using large amount of slag(CaO-FeO-MnO-CaF2). In addition, the impurity elements such as titanium, silicon, sulfur and nitrogen have been greatly reduced in the same time. Using silican calcium combined with oxidative dephosphorization slag, further dephosphorization can be acchieved. The phosphorus content can be reduced to less than 0.1% in high carbon ferromanganese. Meanwhile, silicon, carbon, sulfur and nitrogen are also reduced, but the content of titanium is not reduced.

关 键 词：锰铁脱磷 还原脱磷 氧化脱磷 锰铁深脱磷 

分 类 号：TF642.3.2[冶金工程—钢铁冶金]