某辉钼矿尾矿提取石英的实验研究  

Experimental Research on Extracting Quartz from Molybdenite Tailings

作　　者：刘佳[1,2] 李解[1] 李保卫[1] 祁庆花 徐晓娟[1] 

机构地区：[1]内蒙古科技大学白云鄂博矿多金属资源综合利用国家重点实验室,内蒙古包头014010 [2]东北大学设计研究院(有限公司),沈阳110013 [3]兰石能源装备工程研究院(有限公司),兰州730314

出　　处：《煤炭技术》2016年第12期301-303,共3页Coal Technology

基　　金：内蒙古自然科学基金项目(2015MS0559;2014MS0521);内蒙古科技厅重大专项(白云鄂博高值综合利用的基础及关键技术研究)

摘　　要：针对黑龙江某辉钼矿尾矿进行了矿物分析,结果显示该尾矿中石英的含量为70.63%,铁矿物含量为1.56%。为了提取其中的铁和石英,提高资源利用率,采取"尾矿磁选-酸浸-碱法浮选"的实验流程,在磁场强度为160 k A/m时取得了铁精矿品位21.12%,回收率85.83%;采用硫酸浓度为60%、固液比为4、温度为20℃、反应时间为120 min的酸浸实验得到了SiO_2含量为91.48%的酸浸精矿;通过碱法浮选最终获得了SiO_2含量为98.14%,氧化铝含量为0.52%的石英精矿。The molybdenite tailings come from Heilongjiang was analysed, the content of quartz 70.63% ,content of iron 1.56% were showed in the results. In order to extract the iron, quartz for improve resource utilization, the experiment circuit ＂magnetic separation of tailings-acid leaching- alkali method＂. That under the magnetic field strength of 160 kA/m, the iron concentrate grade of 21.12% and the recovery percent of 85.83% was obtained;sulfuric the acid leaching experiment used sulfuric acid concentration was 60%, solid-liquid ratio of 4,temperature 20℃,the reaction time of 120 min,the SiO2 content of 91.48% was obtained by this method;the SiO2 content of 98.14% and A1203 content of 0.52% were obtained by alkaline flotation.

关 键 词：磁选 酸浸 碱法浮选 

分 类 号：TD923[矿业工程—选矿] TD954