石棉尾矿硫酸铵焙烧工艺优化研究  

Technology Optimization Research of Calcining Asbestos Tailings with Ammonium Sulfate

作　　者：刘姝抒[1] 宋贝[1] 胡志波[1] 牛保军 郑水林[1] 

机构地区：[1]中国矿业大学(北京)化学与环境工程学院,北京100083

出　　处：《非金属矿》2015年第2期19-20,65,共3页Non-Metallic Mines

摘　　要：对石棉尾矿进行预先煅烧和研磨处理,研究了煅烧温度、煅烧时间和研磨时间对石棉尾矿硫酸铵焙烧效果的影响,得到最佳的预处理条件:煅烧温度为500℃,煅烧时间为1 h,研磨时间为18 min。经过预处理后,石棉尾矿硫酸铵焙烧氧化镁溶出率从70.03%提高到95.29%。Asbestos tailings were preprocessed by ball-milling and calcining. This paper studied the influence of calcination temperature, calcination time and milling time on the roasting effect of asbestos tailings and ammonium sulfate. The result showed that the optimum conditions were that calcination temperature was 500 ℃, calcination time was 1 h, milling time was 18 min. Through being preprocessed, the leaching ratio of Mg O was up from 70.03% to 95.29%.

关 键 词：石棉尾矿 硫酸铵 预先处理 溶出率 

分 类 号：TD926.4[矿业工程—选矿] TD972.9