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黄金科学技术 ›› 2018, Vol. 26 ›› Issue (3): 334-341.doi: 10.11872/j.issn.1005-2518.2018.03.334

• 采选技术与矿山管理 • 上一篇    下一篇

河南某难选低品位微细粒金红石选矿试验研究

石贵明1,2,周意超1,李明1*   

  1. 1.玉溪师范学院化学生物与环境学院,云南 玉溪 653100;
    2.江西理工大学资源与环境工程学院,江西 赣州 341000
  • 收稿日期:2017-09-09 修回日期:2018-03-14 出版日期:2018-06-30 发布日期:2018-07-28
  • 通讯作者: 李明(1969-),男,云南石屏人,教授,从事化学选别金属研究工作。liming@yxnu.edu.cn
  • 作者简介:石贵明(1982-),男,安徽安庆人,博士,副教授,从事固废处理、矿物分选与碎磨研究工作。sgm_008@yxnu.edu.cn
  • 基金资助:

    江西省重点研发计划“磨矿条件定向调控强化白钨矿与共生含钙脉石高效分离技术开发”(编号:20171BBG70045)和江西省教育厅课题“矽卡岩钨矿泥化行为规律及选择性磨矿调控机理研究”(编号:GJJ150651)联合资助
     

Beneficiation Experiment of a Refractory and Low Grade Fine Grain Rutile Ore in Henan Province

SHI Guiming 1,2,ZHOU Yichao 1,LI Ming 1   

  1. 1.School of Chemistry Biology and Environment,Yuxi Normal University,Yuxi 653100,Yunnan,China;2.School of Resources and Environmental Engineering,Jiangxi University of Science and Technology,Ganzhou 341000,Jiangxi,China
  • Received:2017-09-09 Revised:2018-03-14 Online:2018-06-30 Published:2018-07-28

摘要: 对河南省某低品位难选细粒金红石与钛铁矿进行了矿物学及分选试验研究。矿石中金红石与钛铁矿均有回收利用价值,金红石矿物呈他形、半自形柱状,多以集合体形式沿脉石矿物的片理方向排列分布,钛铁矿连生体呈细小的粒状被角闪石、黑云母和石英包裹。目的矿物金红石嵌布粒度较细,属细粒、微细粒不均匀嵌布,粒度区间跨度较大,一般为0.037~0.074 mm。在原矿TiO2含量为2.10%,Fe2O3含量为9.69%的情况下,经重选—磁选—酸洗—浮选的原则流程可得到金红石精矿品位为88.25%、回收率为97.80%,钛铁矿精矿品位为11.76%、回收率为89.57%的较好指标。其中重选为一粗一精,强磁选扫二、扫三中矿合并再重选的流程;磁选为一粗四扫,扫一、扫四中矿与粗选精矿合并成磁选精矿进行酸洗;浮选为一粗两精两扫流程。研究结果对难选低品位微细粒金红石矿的综合利用具有一定的指导意义。

关键词: 微细粒金红石, 酸洗, 强磁选, 妥尔油, 风化壳型, 异极性煤油, 低品位矿石, 选矿

Abstract: We studied the mineralogy and beneficiation experiments of a low grade refractory fine grain rutile  and ilmenite in Henan Province.Rutile and ilmenite are recycling value in ore,rutile mineral is xenomorphic and semi-xenomorphic that distributed as combination along the schistosity direction of gangue mineral,ilmenite combination was coated among hornblende,biotite and quartz as small granular.The grain size of the rutile is thinner to this class of fine grain and micro-fine grain,which is generally 0.037~0.074 mm.Under the case of TiO2 content of 2.10%,Fe2O3 content of 9.69% in raw ore,rutile concentrate with 88.25% TiO2,recovery of 97.80%,ilmenite concentrate with 11.76% TiO2,recovery of 89.57% were obtained by principle flow of gravity separation-magnetic separation-pickling-flotation.Among them,the gravity separation process is one roughing-one cleaning and the middlings of scavenging two,scavenging three in high intensity magnetic recleaninged,the magnetic separation process is one roughing-four scavenging,middlings of scavenging one,scavenging four and roughing concentrate combined into magnetic concentrate for pickling,flotation process is one roughing-two cleaning-two scavenging.

Key words: fine grained rutile, pickling, magnetic separation, tall oil, weathering crust type, heteropolar kero-sene, low grade ore, benefication

中图分类号: 

  • TD923.1
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