...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Mining and Metallurgy, Section B: Metallurgy >Preparation and recovery of iron carbide from pyrite cinder using carburization-magnetic separation technology
【24h】

Preparation and recovery of iron carbide from pyrite cinder using carburization-magnetic separation technology

机译：渗碳磁选技术从黄铁矿烧渣中制备和回收碳化铁

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A new technique with carburization followed by magnetic separation is presented for the preparation of high-grade iron carbide from pyrite cinder to promote the high value-added utilization of pyrite cinder. The effects of carburizing temperature, carburizing time and Na2SO4 dosage on carburized pellets were investigated, and the effects of Na2SO4 dosage and grinding fineness on magnetic concentrate were carried out. The optimized process parameters were proposed as follows: carburizing at 650°C for 180 minutes in CO-CO2-H2 gas mixtures, Na2SO4 dosage of 9%, magnetic field intensity of 130 mT, and grinding fineness of 92.25% powder passing 0.025mm. The iron content, total carbon content, total iron and carbon content of magnetic concentrate were 82.62%, 5.60%, and 88.22%, respectively. The recovery rate of iron reached 88.67%. The behaviors and mechanisms of carburization, separation, and Na2SO4, were ascertained with optical microscopy, X-ray powder diffraction (XRD), and scanning electron microscope (SEM).
机译：提出了一种利用渗碳后磁选的新技术，由黄铁矿烧渣制备高级碳化铁，以促进黄铁矿烧渣的高附加值利用。研究了渗碳温度，渗碳时间和Na2SO4用量对渗碳球团的影响，并研究了Na2SO4用量和磨细对磁精矿的影响。提出了优化的工艺参数如下：在CO-CO2-H2气体混合物中于650°C渗碳180分钟，Na2SO4用量为9％，磁场强度为130 mT，研磨细度为92.25％的粉末经过0.025mm。磁性精矿的铁含量，总碳含量，总铁和碳含量分别为82.62％，5.60％和88.22％。铁的回收率达到88.67％。通过光学显微镜，X射线粉末衍射（XRD）和扫描电子显微镜（SEM）确定了渗碳，分离和Na2SO4的行为和机理。

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