内蒙古科技大学毕业论文PAGEV包钢尾矿稀土综合回收选矿工艺研究摘要白云鄂博矿是世界上罕见的以铁、稀土、铌为主的大型多金属共生的矿床。矿石类型多，多种矿物间共生关系密切，嵌布粒度细小，呈“贫、杂、多、细”四大特征。为了提高包头稀土矿物的回收率，加强稀土回收，以便能够更经济合理地利用国家矿产资源，本课题对内蒙古自治区包钢尾矿进行了稀土综合回收的工艺研究。本文对包钢尾矿坝的稀土进行了选矿工艺研究，探索了回收并且同时提高稀土回收率的新工艺，为稀土元素的回收提供了技术上可行、经济上合理的工艺流程和工艺条件。同时，为我国尾矿的稀土开发研究提供参考，解决我国稀土资源综合利用的现状。本文所阐述的工艺可以使稀土的品位达到63%，回收率达到70%以上，完全可以达到工业生产的标准。关键词：包钢稀土回收浮选StudyonTechnologyofRareEarth’sComprehensiveRecoveryfromtailingsinBaoTouSteelAbstractBaiyunObomineisaworld’srarelarge-scalepolymetal-associateddeposit,whichisprimarilyrichiniron,rareearth,niobiumandcharacterizedby"lean,complex,multiple,fine".Itsclosely-relatedmineralsaresmallembedded.InordertoimprovetherecoveryrateofRareEarth,strengthentherecycleofrareearth，andusethecountrymineralresourceeconomically,thissubjectconductsatechnicalstudyoncomprehensiverecoveryprocessoftailingsfromInnerMongoliaAutonomousRegionBaotouSteel.Inthispaper,wecarryoutthedressingtechnicalstudyonrareearthfromtheBaotouSteeltailingsdam,explorenewcrafttoraisetherecovery,simultaneouslyproposetechnicallyfeasibleandeconomicallyreasonabletechnicalprocessandconditions.Atthesametime,itprovidesthereferenceforourcountry'srareearthresearchsoastosolvepresentsituationofrareearth’scomprehensiveutilization.Thecraftelaboratedinthisarticlemayenabletherareearth’sreachto63%andreturns-ratioto70%,definitelymeetthestandardofindustrialproduction.Keywords:BaotouSteelRareEarthRecoveryFlotation目录TOC\o"1-3"\h\z\uHYPERLINK\l"_Toc264993431"摘要PAGEREF_Toc264993431\hIHYPERLINK\l"_Toc264993432"AbstractPAGEREF_Toc264993432\hIIHYPERLINK\l"_Toc264993433"第一章绪论PAGEREF_Toc264993433\h1HYPERLINK\l"_Toc264993434"1.1课题研究背景PAGEREF_Toc264993434\h1HYPERLINK\l"_Toc264993435"1.1.1稀土的概况PAGEREF_Toc264993435\h1HYPERLINK\l"_Toc264993436"1.1.2白云鄂博稀土矿PAGEREF_Toc264993436\h1HYPERLINK\l"_Toc264993437"1.2国内外现状PAGEREF_Toc264993437\h2HYPERLINK\l"_Toc264993438"1.2.1国内外稀土资源的分布现状PAGEREF_Toc264993438\h2HYPERLINK\l"_Toc26