选铁尾矿中回收钛铁矿的试验研究  被引量:3

Experimental Study on Recovery of Ilmenite from Iron-separation Tailings

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作  者:贾清梅[1,2] 曹兵[3] 太军君[4] 

机构地区:[1]河北理工大学,河北唐山063009 [2]河北省矿业开发与安全技术重点实验室,河北唐山063009 [3]唐山职业技术学院,河北唐山063000 [4]唐山师范学院,河北唐山063000

出  处:《矿冶工程》2010年第4期44-46,49,共4页Mining and Metallurgical Engineering

摘  要:根据某选铁尾矿的矿石性质,在一系列流程和条件试验基础上,最终选定了"磨矿-螺旋溜槽-弱磁-强磁-磨矿-浮选"工艺,第一段磨矿粒度为-0.074 mm粒级占50.0%,第二阶段磨矿粒度为-0.074 mm粒级占70%,以螺旋溜槽选别抛弃绝大部分合格尾矿,弱磁选选出磁铁矿,强磁脱泥抛尾为浮选提供合适的选别条件,浮选除去黄铁矿及脉石矿物。试验最终钛精矿品位为46.33%,对原尾矿样品的产率为1.6%,回收率16.5%。尾矿中流失的钛主要存在于脉石矿物钛辉石中。Based on the characteristics analysis of a certain iron-separation tailings and the results of a series of flowsheet and parameter tests,a process of "grinding-spiral chute-low intensity magnetic separation-high intensity magnetic separation-grinding-flotation" was proposed.Grinding fineness for the first stage of grinding was-0.074 mm 50.0% and for the second,70%.The majority of qualified tailings were abandoned by spiral chute.Magnetite was recovered by the low intensity magnetic separation,while the discarding of mud and tailings with high intensity magnetic separation provided optimized processing conditions for flotation,thereafter,pyrite and gangue minerals can be removed by flotation.The grade of titanium concentrate reached 46.33%,and with the iron-separation tailings as the raw ore,the yield and the recovery of the concentrate is 1.6% and 16.5%,respectively.The loss of titanium in the tailings mainly existed in the gangue mineral Ti-pyroxene.

关 键 词:钛铁矿 铁尾矿 浮选 

分 类 号:TD92[矿业工程—选矿]

 

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