鲕状高磷赤铁矿熔融还原过程脱磷技术研究  

Study on dephosphorization technology for high phosphorus oolitic hematite in melting reduction

作　　者：文志军[1] 吴杰[1] 岑明进[1] 

机构地区：[1]武钢研究院,湖北武汉430080

出　　处：《武钢技术》2010年第6期25-28,共4页Wisco Technology

摘　　要：针对＂宁乡式＂鲕状高磷赤铁矿的矿物学特点,研究用熔融还原法处理＂宁乡式＂鲕状赤铁矿脱磷的技术。热力学及动力学分析和熔融还原脱磷实验表明,碱度、萤石比例等因素影响脱磷率。鲕状高磷赤铁矿熔融还原过程中配加CaO、CaF2脱磷效果显著,脱磷率最高可达97.3%。合适的二元碱度在1.8~2.2之间,CaF2的合理加入量在6%~9%。In view of the complicated mineralogy features of the ＂Ninxiang type＂ high phosphorus oolitic hematite,the technology of dephosphorization using melting reduction has been proposed.Results of thermodynamics analysis and laboratory test of melting reduction technology show that the effects of dephosphorization are determined by the basicity of slag and the calcium fluoride ratio and the suitable basicity of slag should be within the range of 1.8 to 2.2 and the reasonable calcium fluoride ratio ranges from 6 % to 9 %,and the max ratio of dephosphorization is 97.3 %.

关 键 词：鲕状赤铁矿 高磷矿 脱磷 熔融还原 

分 类 号：TF513[冶金工程—钢铁冶金]