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金属矿山 ›› 2016, Vol. 45 ›› Issue (02): 99-102.

• 矿物工程 • 上一篇    下一篇

白云鄂博稀土精矿再选提纯试验

朱永涛1,2,李梅1,高凯1,3,张栋梁1,3,李晓雷1,2,闫毅1,2   

  1. 1.内蒙古自治区稀土现代冶金新技术与应用重点实验室,内蒙古 包头 014010;2.内蒙古科技大学矿业研究院,内蒙古 包头 014010;3.北京化工大学材料科学与工程学院,北京 100029
  • 出版日期:2016-02-15 发布日期:2016-03-11
  • 基金资助:

    * 内蒙古自然科学基金项目(编号:2014ZD04),内蒙古自治区应用技术研究与开发项目(编号:20151658)。

Reconcentration Purification Experiment on Rare Earth Concentrate in Baiyan Obo

Zhu Yongtao1,2,Li Mei1,Gao Kai1,3,Zhang Dongliang1,3,Li Xiaolei1,2,Yan Yi1,2   

  1. 1.Key Laboratory of Inner Mongolia Autonomous on New Technologies of Modern Metallurgy and Application of Rare Earth,Baotou 014010,China;2.Mining Research Institute,Inner Mongolia University of Science and Technology,Baotou 014010,China;3.School of Materials Science and Engineering,Beijing University of Chemical Technology,Beijing 100029,China
  • Online:2016-02-15 Published:2016-03-11

摘要: 白云鄂博北方稀土集团选矿厂浮选精矿REO品位为50.12%,杂质成分CaO、Fe、F和SiO2含量较高,直接用于冶炼不仅降低会产品的质量,还会降低稀土回收率。为给稀土冶炼工艺升级提供优质原料,对其进行了再选提纯试验。结果表明:以NaOH为pH调整剂、水玻璃为抑制剂、LF8#为捕收剂,经1粗3精2扫,中矿顺序返回闭路浮选,可获得REO品位为65.48%、回收率为92.23%的高品质稀土精矿,满足了后续稀土冶炼工艺升级改造对高品质稀土精矿的要求。

关键词: 稀土, 精矿提纯, 浮选

Abstract: There is 50.12% REO in a flotation concentrate of a plant in North Rare Earths Group in Baiyan Obo.Impurities composition CaO,Fe,F and SiO2 content is high,not only quality of the products but also rare earth recovery will relatively low when directly used for smelting.To provide quality raw materials for rare earth smelting technology upgrade,reconcentration purification tests were conducted.Results show that using NaOH as pH regulator,sodium silicate as depressor,LF8# as collector,via one roughing-three cleaning-two scavenging and middlings back to the flowsheet in turn closed cirouit flotation process,high quality rare earth concentrate with REO grade of 65.48% and recovery of 92.23% was obtained,meet quality demand of the subsequent rare earth smelting technology upgrade.

Key words: Rare earth, Purification on concentrate, Flotation