机械力对攀枝花钛铁矿结构及反应特性的影响  

Effect of Mechanical Force on Structure and Reaction Characteristics of Panzhihua Ilmenite

作　　者：雷鹰[1] 李雨[1] 彭金辉[1] 张利波[1] 郭胜惠[1] 夏洪应[1] 

机构地区：[1]昆明理工大学冶金与能源工程学院,非常规冶金教育部重点实验室,云南昆明650093

出　　处：《过程工程学报》2010年第6期1158-1162,共5页The Chinese Journal of Process Engineering

基　　金：国家重点基础研究发展规划(973)基金资助项目(编号:2007CB613606)

摘　　要：为考察攀枝花钛铁矿的还原特性,对其进行了球磨活化.结果表明,球磨处理使钛铁矿颗粒粒径变小,晶格细化,应变增大,无序化程度和活性提高.热重结果分析表明,球磨处理使钛铁矿还原反应开始温度降至600～700℃,并提高了反应速率,在912℃固相反应温度下,磨矿8,4,2,1,0h失重分别为10.99%,7.21%,3.95%,3.31%和0.90%.Ball milling activation of Panzhihua ilmenite was conducted on its characteristics of reduction reaction. The results show that ball milling can reduce the ilmenite grain size,and increase the stains of lattices and disorder of structure,and activity of ilmenite. The starting reduction temperature of ilmenite and graphite is reduced to 600～700℃ after milling for 4～8 h. At 912℃ of solid state reaction,the weight loss of samples milled for 8,4,2,1 and 0 h is 10.99%,7.21%,3.95%,3.31% and 0.90%,respectively.

关 键 词：攀枝花钛铁矿 机械力 粒度 晶格应变 活性 反应特性 

分 类 号：TF8[冶金工程—有色金属冶金] TF1