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金属矿山 ›› 2012, Vol. 41 ›› Issue (06): 57-60+67.

• 矿物工程 • 上一篇    下一篇

某低品位铬矿石选矿试验

胡义明1,2,韩跃新1   

  1. 1.东北大学资源与土木工程学院;2.中钢集团马鞍山矿山研究院有限公司
  • 出版日期:2012-06-15 发布日期:2012-06-29
  • 基金资助:

    *  “十二五”国家科技支撑计划项目(编号:2011BAB07B05)。

Test Research on Beneficiation of a Low-grade Chromium Ore

Hu Yiming1,2,Han Yuexin1   

  1. 1.College of Resources and Civil Engineering,Northeastern University;2.Sinosteel Maanshan Institute of Mining Research Co.,Ltd.
  • Online:2012-06-15 Published:2012-06-29

摘要: 在重液分离和强磁选探索试验的基础上,按重选方案对某Cr2O3含量在14%左右的低品位铬矿石进行了多个流程的选矿试验,结果表明,将原矿磨至-0.076 mm占50%后分成+0.076 mm和-0.076 mm两个粒级进行摇床重选,可取得精矿Cr2O3品位为45.64%、Cr2O3回收率为67.99%的较好指标,从而为该低品位铬矿资源的合理开发提供了依据。

关键词: 低品位铬矿石, 重液分离, 强磁选, 重选

Abstract: Based on the exploratory experiment by the methods of separation in heavy liquid and high intensity magnetic separation,according to the gravity separation method carried out several flow-sheets to the low grade chromium ore containing Cr2O3 about 14%. The results show that after grinding the raw ore to the particle size at -0.076 mm 50%,then separating to +0.076 mm and -0.076 mm two size fraction,by gravity separation with shaking table,can get the concentrate with the grade of Cr2O3 at 45.64%,recovery at 67.99%. These provide a basis for reasonable utilization to this kind low grade chromium ore.

Key words: Low grade chromium ore, Separation in heavy liquid, High intensity magnetic separation, Gravity separation