...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Minerals Engineering >The importance of mechanical scrubbing in magnetite-concentrate reverse-flotation
【24h】

The importance of mechanical scrubbing in magnetite-concentrate reverse-flotation

机译：机械洗涤在磁铁精矿反浮选中的重要性

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Getting magnetite concentrate with extremely high Fe grade using reverse flotation method has become increasingly important due to the enhanced requirement of iron making industry. The coagulation in magnetite-concentrate flotation system may impose negative effect on flotation performance. This paper combined the DLVO calculation and microscope observation to study the coagulation behavior in the system. The result shows that the coagulation between fine magnetite and coarse silica particle is very likely to occur with energy barrier 1.5 x 10~(-18)J at pH 10.0, which is much smaller than 1.6 x 10~(-17)J and 3.3 x 10~(-17) J for fine magnetite and fine magnetite-coarse magnetite particles. The coating of fine magnetite particle on silica surface was observed under microscope. Mechanical scrubbing increases the concentrate Fe grade and recovery by 1.5% and 8.5% respectively. Magnetite concentrate of 67.9% Fe grade and 71.5% Fe recovery was finally obtained.
机译：由于炼铁工业的需求增加，使用反向浮选法获得具有极高铁品位的磁铁矿精矿变得越来越重要。磁铁精矿浮选系统中的凝结可能对浮选性能产生负面影响。本文将DLVO计算与显微镜观察相结合，以研究系统中的混凝行为。结果表明，在pH 10.0时，能垒为1.5 x 10〜（-18）J时，细磁铁矿与二氧化硅粗粒之间极易发生凝结，远小于1.6 x 10〜（-17）J和3.3时x 10〜（-17）J，用于细磁铁矿和细磁铁矿粗磁铁矿颗粒。在显微镜下观察在二氧化硅表面上的细磁铁矿颗粒的涂层。机械洗涤可将精矿铁品位和回收率分别提高1.5％和8.5％。最终获得了品位67.9％的铁精矿和71.5％的铁回收率的磁铁矿精矿。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号