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金属矿山 ›› 2015, Vol. 44 ›› Issue (03): 108-111.

• 矿物工程 • 上一篇    下一篇

新疆某白钨矿石选矿试验

周意超,周斌,鄢发明,吴彩斌   

  1. 江西省矿业工程重点实验室,江西 赣州 341000
  • 出版日期:2015-03-15 发布日期:2015-07-31

Beneficiation on a Scheelite Ore in Xinjiang

Zhou Yichao,Zhou Bin,Yan Faming,Wu Caibin   

  1. Jiangxi Key Laboratory of Mining Engineering,Ganzhou 341000,China
  • Online:2015-03-15 Published:2015-07-31

摘要: 新疆某白钨矿矿物组成复杂,WO3含量为0.772%,95.85%的钨以白钨矿的形式存在,其他金属矿物主要为方铅矿、闪锌矿、黄铁矿等。白钨矿不均匀分布在脉石矿物中,以细粒为主,部分为不规则短条带状或不规则团状集合体。为高效回收矿石中的钨,在工艺矿物学分析基础上进行了选矿工艺研究。结果表明,矿石在磨矿细度为-0.074 mm占60%的情况下,采用1粗1扫脱硫、1粗1扫常温浮钨、3次加温精选选钨、中矿顺序返回流程处理,可获得WO3品位为66.38%、回收率为83.40%的钨精矿。

关键词: 白钨矿, 脱硫浮选, 加温精选

Abstract: The scheelite ore in Xinjiang has a complex mineral composition,WO3 content is 0.772% and 95.85% of tungsten exists in form of scheelite,other metallic minerals are mainly galena,sphalerite,pyrite,etc.Scheelite are irregularly distributed in the gangue minerals,most of which are fine,and some are irregular short strips and irregular aggregate.Beneficiation process was studied based on the process mineralogy analysis to realize highly efficient recovery of tungsten.The results indicated that,scheelite concentrate with WO3 grade of 66.38% and recovery of 83.40% was obtained by adopting the process of one roughing and one scavenging to remove sulphide,one roughing and one scavenging for floating scheelite at room temperature,three cleaning for floating scheelite by heating at the grinding fineness of -0.074 mm accounted for 60%.

Key words: Scheelite, Desulfurization flotation, Heating concentration