内蒙某含硫铁矿石选矿试验研究  

Experimental Study on Mineral Processing for a Sulfur-bearing Iron Ore from Mongolia

作　　者：王伟之[1,2] 刘泽伟 王晓旭 Wang Weizhi Liu Zewei Wang Xiaoxu(College of Mining and Engineering, North China University of Science and Technology, Tangshan, Hebei, China Mining Development and Safety Technology Key Lab of Hebei Province, Tangshan, Hebei, China Capital Engineering and Research Incorporation Ltd. , Qinhuangdao, Hebei, China)

机构地区：[1]华北理工大学矿业工程学院,河北唐山063009 [2]河北省矿业开发与安全技术实验室,河北唐山063009 [3]中冶京诚(秦皇岛)工程技术有限公司,河北秦皇岛066004

出　　处：《矿产综合利用》2017年第1期42-45,共4页Multipurpose Utilization of Mineral Resources

基　　金：河北省科技厅资助项目(15274109)资助

摘　　要：内蒙某铁矿石中硫含量为3.93%,针对该含硫铁矿石进行了旨在降低铁精矿中硫含量的选矿试验研究,试验采用磁选-浮选联合工艺流程。结果表明:在原矿磨至细度-0.074 mm 55%的条件下,通过弱磁选可获得铁品位66.52%、硫含量3.44%的铁精矿;对该铁精矿再磨,再磨细度-0.074 mm 65%的条件下,以丁黄药作为捕收剂,硫酸和硫酸铜作为调整剂,采用一次粗选四次精选反浮选工艺处理该铁精矿,铁精矿中硫含量可降至0.35%。The iron ore from Mongolia has a sulfur content of 3. 93%.So a mineral processing test was conducted for reducing the sulfur content in the iron concentrate.It adopted a flowsheet of low-intensity magnetic separation-floatation.The results showed that an iron concentrate with a TFe grade of 66. 52%,sulfur content of 3. 44%was achieved with the grinding size being-0. 074 mm 55%.In the desulfurization tests,the iron concentrate is regrounded with the grinding size being-0. 074 mm 65%.Using sulfuric acid and copper sulfate as regulators and butyl xanthate as collector,and using a reverse flotation flowsheet of one roughing and four cleanings,an iron concentrate of sulfur content at 0. 35%was could obtained.

关 键 词：铁精矿 磁黄铁矿 弱磁选 脱硫 

分 类 号：TD951[矿业工程—选矿]