首页 | 本学科首页   官方微博 | 高级检索  
     

宣龙式鲕状赤铁矿石磁化焙烧—弱磁选试验
引用本文:刘硕,张亚辉,张家,张艳娇,张红新,李洪潮.宣龙式鲕状赤铁矿石磁化焙烧—弱磁选试验[J].金属矿山,2015,44(5):77-81.
作者姓名:刘硕  张亚辉  张家  张艳娇  张红新  李洪潮
作者单位:1.武汉理工大学资源与环境工程学院,湖北 武汉 430070;2.中国地质科学院郑州矿产综合利用研究所,河南 郑州 450006
摘    要:宣龙式鲕状赤铁矿石铁品位较高,达48.65%,主要铁矿物为赤铁矿,占总铁的85.84%,其次是碳酸铁,占总铁的9.50%,磁性铁含量较低,仅占总铁的3.12%;脉石矿物主要为石英,磷、铝等有害元素含量均不高。为探索该资源的高效、低耗开发利用方案,采用磁化焙烧—弱磁选工艺进行了选矿试验研究。结果表明,0.2~0 mm的烟煤与-0.074 mm占62%的试样按质量比12%混合,在800℃下焙烧45 min,焙烧产物磨至-0.074 mm占89.2%的情况下进行弱磁选(磁场强度为105.6 k A/m),可得到铁品位为62.50%、铁回收率为85.50%的铁精矿。因此,磁化焙烧—弱磁选工艺适合处理宣龙式鲕状赤铁矿石。

关 键 词:鲕状赤铁矿  磁化焙烧  弱磁选

Research on Magnetizing Roasting-Low Intensity Magnetic Separation of a Xuanlong-Type Oolitic Hematite Ore
Liu Shuo,Zhang Yahui,Zhang Jia,Zhang Yanjiao,Zhang Hongxin,Li Hongchao.Research on Magnetizing Roasting-Low Intensity Magnetic Separation of a Xuanlong-Type Oolitic Hematite Ore[J].Metal Mine,2015,44(5):77-81.
Authors:Liu Shuo  Zhang Yahui  Zhang Jia  Zhang Yanjiao  Zhang Hongxin  Li Hongchao
Affiliation:1.College of Resources and Environmental Engineering,Wuhan University of Technology,Wuhan 430070,China;2.Zhengzhou Institute of Multipurpose Utilization of Mineral Resources,CAGS,Zhengzhou 450006,China;
Abstract:The iron grade of Xuanlong-type Oolitic hematite ore is up to 48.65%.Main iron mineral is hematite,accounting for 85.84% of the total iron,followed by iron carbonate,representing 9.50%.The content of magnetic iron is low,only 3.12%.Gangue minerals are quartz with trace of harmful elements,phosphorus,aluminum,etc..In order to explore efficient,low-consumption development and utilization of the resources,the process of magnetic roasting-low intensity magnetic separation was selected.The results showed that the mass ratio of sample with 0.2 ~ 0 mm bituminous coal and -0.074 mm accounted for 62% as 12%,roasted at 800 ℃ for 45 min,ground the roasted products to 89.2% -0.074 mm,and through the process of low intensity magnetic separation (magnetic field intensity 105.6 kA/m),iron concentrate with iron grade of 62.50% and recovery of 85.50% was obtained.Therefore,the process of magnetic roasting-low intensity magnetic separation is the suitable process to deal with Xuanlong-type oolitic hematite.
Keywords:Oolitic hematite ore  Magnetizing roasting  Low intensity magnetic separation
本文献已被 CNKI 万方数据 等数据库收录!
点击此处可从《金属矿山》浏览原始摘要信息
点击此处可从《金属矿山》下载全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号