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金属矿山 ›› 2016, Vol. 45 ›› Issue (09): 103-106.

• 矿物工程 • 上一篇    下一篇

某难选铷矿石选矿预富集试验

邵伟华1,2,曹耀华1,2,刘广学1,2,王守敬1,2   

  1. 1.中国地质科学院郑州矿产综合利用研究所,河南 郑州 450006;2.国土资源部多金属矿评价与综合利用重点实验室,河南 郑州 450006
  • 出版日期:2016-09-15 发布日期:2016-10-18

Pre-concentration Test of a Refractory Rubidium Ore

Shao Weihua1,2,Cao Yaohua1,2,Liu Guangxue1,2,Wang Shoujing1,2   

  1. 1.Zhengzhou Institute of Multipurpose Utilization of Mineral Resources,CAGS,Zhengzhou 450006,China;2.Key Laboratory for Polymetallic Valuation and Comprehensive Utilization,Ministry of Land and Resources,Zhengzhou 450006,China
  • Online:2016-09-15 Published:2016-10-18

摘要: 我国西部某大型铷矿床资源储量约10万t,矿石中的铷呈分散状态赋存在钾长石及铁锂云母中,主要脉石矿物钠长石和石英不含铷。根据铁锂云母有弱磁性、钾长石的可浮性与石英相差较大的特点,以强磁选富集矿石中的含铷矿物铁锂云母、浮选富集矿石中的含铷矿物钾长石的磁浮联合流程进行了铷预富集试验。结果表明,Rb2O含量为0.13%的矿石在磨矿细度为-0.074 mm占65%的情况下,以PL为石英等硅酸盐矿物的强抑制剂、EZ+十二胺为长石类矿物的捕收剂,经1次强磁选,1粗1扫2精、中矿合并再选的浮选流程处理,获得了Rb2O品位为0.39%、回收率为69.91%的铷精矿。

关键词: 铷矿石, 浮选, 组合捕收剂, 中性矿浆

Abstract: There are 100 thousand ton deposits resources distributed in our country in Western China. Rubidium mainly occurred in potassium feldspar and zinnwaldite in a decentralized state. The main gangue minerals are sodium feldspar and quartz. According to zinnwaldite has low intensity magnetism,and there are large floatability difference between feldspar and quartz,preconcentration experiment by combined flowsheet of magnetic separation and flotation,enrichment of zinnwaldite containing rubidium by high intensity magnetic separation and enrichment of potassium feldspar containing rubidium mineral by flotation. The results showed that raw ore with Rb2O grade of 0.13% ground to 65% passing 0.074 mm,using PL as strong depressor of quartz and other silicate minerals,EZ and laurylamine as combined collector of feldspar minerals,rubidium concentrate with Rb2O grade of 0.39% and recovery of 69.91% was obtained through one high intensity magnetic separation,one roughing,two cleaning,one scavenging flotation process.

Key words: Rubidium ore, Flotation, Combined collector, Neutral ore pulp