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金属矿山 ›› 2012, Vol. 41 ›› Issue (01): 100-103.

• 矿物工程 • 上一篇    下一篇

山西某铝土矿提铝降铁试验研究

卢毅屏,丁明辉,冯其明,欧乐明,张国范   

  1. 中南大学资源加工与生物工程学院
  • 出版日期:2012-01-11 发布日期:2012-01-11
  • 基金资助:

    * 国家自然科学基金项目(编号:51174229)。

Aluminum Increasing and Iron Reduction Research on Shanxi A Bauxite

Lu Yiping,Ding Minghui,Feng Qiming,Ou Leming,Zhang Guofan   

  1. School of Minerals Processing and Bioengineering,Central South University
  • Online:2012-01-11 Published:2012-01-11

摘要: 对山西某铝土矿进行了提铝降铁试验研究,结果表明:采用1粗1精1扫浮选、1次高梯度强磁选流程处理该矿石,可以将Al2O3品位为从64.80%提高到72.57%,回收率达86.86%;Fe2O3含量从3.28%降至1.81%,去除率达57.20%;适宜的磨矿细度是取得理想分选指标的前提;六偏磷酸钠和捕收剂RL在正浮选提铝作业中发挥了主导作用;六偏磷酸钠在强磁选降铁作业中具有显著的强化分散作用。  

关键词: 铝土矿, 浮选, 强磁选

Abstract: The aluminum increasing and iron reduction research on Shanxi a bauxite was carried out.The results show it could increase the Al2O3 grade from 64.80% to 72.57%,the recovery rate comes to 86.86%,while the concent of Fe2O3 decrease from 3.28% to 1.81%,the removal rate reaches to 57.20% when deal with the ore with one roughing,one cleaning,one scavenging and one high gradient magnetic separation.Appropriate grinding fineness is the guarantee of ideal separation index,sodium hexametaphosphate and RL flotation play a leading role in flotation to increasing aluminum,and sodium hexametaphosphate makes remarkable dispersion in the strong magnetic separation for iron reduction.

Key words: Bauxite, Flotation, High intensity magnetic separation