摘要
澳大利亚拥有原矿品位高、有害元素含量低、开采后不经选矿可直接进入冶炼的丰富的优质铁矿石资源,但优质铁矿石资源不可再生,开发利用较低品位铁矿石资源对于铁矿石资源的可持续开采具有重要意义。澳大利亚某铁矿中Fe品位57.93%,主要含铁矿物为赤铁矿和褐铁矿、少量硬锰矿,脉石矿物主要是高岭土、石英,少量的长石、黑云母、方解石、白钛石、金红石等。有价矿物之间嵌布关系复杂,且铁矿嵌布粒度细,同时赤铁矿和褐铁矿包裹体包含于高岭土、石英或交代连生,铁矿磁选不易分离。试验采用磁选-浮选工艺流程获得Fe品位为68.57%、回收率为76.45%的铁精矿。
Australia is rich in high-quality iron ore resources with high raw ore grade and low content of harmful elements,which can be directly smelted without beneficiation after mining.However,high-quality iron ore resources are not renewable.The development and utilization of lower grade iron ore resources is of great significance for the sustainable mining.An iron ore from Australia has a Fe grade of57.93%.The mainly iron-containing minerals contain hematite,limonite,and a small amount of pyrolusite.The gangue minerals are mainly kaolinite and silica,followed by feldspar,biotate,calcite,white titanium,and rutile.The complex embedded relationship among the valuable mineral,the fine disseminated grain size of hematite as well as limonite inclusion were contained in kaolinite,silica which is not conducive to the magnetic separation of the iron ore.In this paper,a flow chart of magnetic separation-flotation was adopted to obtain iron ore concentrate with Fe grade of 68.57%as well as Fe recovery of 76.45%.
作者
杨招君
谢宝华
钟森林
王丰雨
梁焘茂
李波
Yang Zhaojun;Xie Baohua;Zhong Senlin;Wang Fengyu;Liang Taomao;Li Bo(Guangzhou Yueyouyan Mineral Resources Technology Co.,Ltd.,Guangzhou 510651,Guangdong,China;State Key Laboratory of Separation and Comprehensive Utilization of Rare Metal,Guangzhou 510651,Guangdong,China;Institute of Resources Utilization and Rare Earth Development,Guangdong Academy of Sciences,Guangzhou 510651,Guangdong,China)
出处
《钢铁钒钛》
CAS
北大核心
2022年第6期115-120,137,共7页
Iron Steel Vanadium Titanium
基金
广东省科学院发展专项资金项目(2022GDASZH-2022010104)。
关键词
赤铁矿
褐铁矿
磁选
浮选
回收率
hematite
limonite
magnetic separation
flotation
recovery rate
作者简介
杨招君,1971年出生,女,工程师,主要从事矿物加工工程及资源综合利用方面的研究,E-mail:mimiyzj@163.com;通讯作者:钟森林,1984年出生,男,工程师,主要从事矿物加工工程及资源综合利用方面的研究,E-mail:13316129197@qq.com。
