| 中低品位铝土矿浮选柱短流程分选研究 |
| |
| 引用本文： | 周长春,刘炯天,李振,任新春,闫波.中低品位铝土矿浮选柱短流程分选研究[J].中国矿业大学学报,2010,39(1). |
| |
| 作者姓名： | 周长春 刘炯天 李振 任新春 闫波 |
| |
| 作者单位： | 中国矿业大学化工学院,江苏,徐州,221116 |
| |
| 基金项目： | 国家科技支撑计划，国家自然科学基金创新研究群体基金，中国矿业大学科技基金 |
| |
| 摘 要： | 我国铝土矿绝大多数为中低铝硅比的一水硬铝石型,矿物嵌布粒度细,分选困难.在分析铝土矿矿石性质的基础上,利用旋流-静态微泡浮选柱对中低品位铝土矿进行分选,考察了捕收剂用量、循环压力、处理量等因素对浮选效果的影响.研究结果表明:铝土矿易泥化,微细粒级含量高,其有效分选是关键;随着捕收剂用量、循环泵压力、处理量的增大,氧化铝回收率增加、精矿铝硅比下降;当捕收剂用量1000g/t,循环泵压力0.17MPa,处理量4.0t/(m2.h)时,精矿铝硅比8.02～8.13,氧化铝回收率88.77%～90.01%.采用"一粗一精"两段浮选柱分选可以完成浮选机"一粗两精两扫"五段分选作业,分选流程短,工艺简洁.
|
| 关 键 词： | 铝土矿 浮选柱 短流程 分选 |
Study of Short Flowsheet Separation with Flotation Column for Middle-Low Grade Bauxite |
| |
| ZHOU Chang-chun,LIU Jiong-tian,LI Zhen,REN Xin-chun,YAN Bo.Study of Short Flowsheet Separation with Flotation Column for Middle-Low Grade Bauxite[J].Journal of China University of Mining & Technology,2010,39(1). |
| |
| Authors: | ZHOU Chang-chun LIU Jiong-tian LI Zhen REN Xin-chun YAN Bo |
| |
| Affiliation: | ZHOU Chang-chun,LIU Jiong-tian,LI Zhen,REN Xin-chun,YAN Bo(School of Chemical Engineering , Technology,China University of Mining , Technology,Xuzhou,Jiangsu 221116,China) |
| |
| Abstract: | Most of bauxite resources are diasporic bauxite with middle-low grade,fine dissemination size and difficult to separate.On the basis of analyzing the nature of bauxite,a cyclonic-static micro-bubble flotation column was used to separate bauxite with middle-low grade.The effects of collector dosage,circulation pump pressure and throughput on flotation efficiency were investigated.The results show that the bauxite is easy to slime,the separation of high content micro-fine size particle is very pivotal.With th... |
| |
| Keywords: | bauxite flotation column short flowsheet separation |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
