包头某铁矿尾矿综合回收萤石试验研究  

Experimental Study on Recovery of Fluorite from Tailings of Baotou Iron Mine

作　　者：刘春光 李宏静 王丽明 贾佳 苏然然 LIU Chunguang;LI Hongjing;WANG Liming;JIA Jia;SU Ranran(Baotou Iron and Steel Mining Co Ltd,Baotou 014030,Inner Mongolia,China;Mining Research Institute of Baotou Steel(Group)Corp,Baotou 014030,Inner Mongolia,China;Shandong Weishanhu Rare Earth Co Ltd,Jining 277600,Shandong,China)

机构地区：[1]包钢矿业有限责任公司,内蒙古包头014030 [2]包钢集团矿山研究院(有限责任公司),内蒙古包头014030 [3]山东微山湖稀土有限公司,山东济宁277600

出　　处：《矿冶工程》2024年第1期84-88,共5页Mining and Metallurgical Engineering

摘　　要：内蒙古包头某铁矿尾矿资源储量大,萤石(CaF_(2))含量低,其中脉石矿物铁白云石、方解石和重晶石与萤石可浮性相近,导致萤石回收难度较大。采用抑制剂DKCS、抑制剂FX-1、淀粉分别选择性抑制铁白云石、方解石和重晶石,并采用改性油酸FH为萤石捕收剂,实现了萤石与脉石矿物的有效分离,闭路试验获得了CaF_(2)品位90.68%、回收率64.69%的萤石精矿,实现了该尾矿中萤石资源的综合回收。The tailings of an iron mine in Baotou,Inner Mongolia,contain fluorite resources with large reserve and low CaF_(2) grade.Unfortunately,the gangue minerals in the tailings,such as ankerite,calcite and barite,share similar floatability with fluorite,resulting in difficulty in fluorite recovery.With DKCS,FX-1 and starch introduced to depress ankerite,calcite and barite respectively,fluorite can be effectively separated from gangue minerals with modified oleate acid FH as the collector.It is shown that a closed-circuit test can result in a fluorite concentrate grading 90.68%CaF_(2) at 64.69%recovery,showing a comprehensive recovery of fluorite resources from the tailings.

关 键 词：尾矿综合利用 浮选 抑制剂 捕收剂 萤石 白云石 方解石 重晶石 

分 类 号：TD98[矿业工程—选矿]