电解锰渣体系中硫酸钙特性的研究  

Study on Characteristics of Calcium Sulfate in Electrolytic Manganese Residue

作　　者：张强[1] 彭兵[1] 柴立元[1] 王佳[1] 张金龙[1] 闵小波[1] 

机构地区：[1]中南大学冶金科学与工程学院,湖南长沙410083

出　　处：《矿冶工程》2010年第5期70-73,78,共5页Mining and Metallurgical Engineering

基　　金：湖南省节能减排科技重大专项(2008FJ1013;2009FJ1008)

摘　　要：采用DTA与XRD分析了煅烧温度对电解锰渣中主要物质硫酸钙晶型的影响,并检测了电解锰渣中硫酸钙溶解度的变化,以及煅烧锰渣掺入矿渣中对矿渣的激发性能。结果显示:电解锰渣中硫酸钙在71.6,133.9,540.8,875.9和1 149.4℃发生晶型转变,经过350℃以上煅烧的电解锰渣中硫酸钙溶解度较大,对矿渣的活性激发效果也较好。研究结果可为电解锰渣应用于胶凝材料的生产提供理论依据。Effects of calcination temperature on the crystal form of calcium sulfate in electrolytic manganese residue were analyzed by DTA and XRD.The solubility changes of calcium sulfate in electrolytic manganese residue were detected and the activation ability of the electrolytic manganese residue mixed with blast furnace slag was analyzed.The results showed that the crystal form of calcium sulfate in electrolytic manganese residue transformed at temperature 71.6,133.9,540.8,875.9 and 1149.4 ℃.The solubility of calcium sulfate in electrolytic manganese residue calcinated above 350 ℃ was higher and the activation effect on the slag was better.This will provide theoretical base for the utilization of electrolytic manganese residue in production of the gels.

关 键 词：电解锰渣 硫酸钙 晶型转变 溶解度 活性指数 

分 类 号：TF046[冶金工程—冶金物理化学]