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《赤泥中回收稀土金属的综述（review of recovery of rare earth metals from red mud）》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。
1、赤泥中回收稀土金属的综述（Reviewofrecoveryofrareearthmetalsfromredmud）Thisarticleiscontributedbylotus2009hePdfdocumentsmayexperiencepoorbrowsingontheWAPside.ItisrecommendedthatyoufirstselectTXT,ordownloadthesourcefiletothelocalview.ProblemdiscussionWentiTaolunRedmudReviewofrecover
2、yofrareearthmetalsJiangPingguoredmudisakindofsolidwastedischargedfromtheprocessofaluminaproduction.Every1tonsofaluminaproducedwillproduce1~1.6tonsofredmud.Atpresent,thereisnogoodmethodathomeandabroad,tostoragedam.Redmudcontainsradioactiveelementsandalargeamountofalkal
3、i,whichnotonlyharmhumanhealth,butalsopollutethewater.Inaddition,redmudisrichinrareearthelements.Therefore,theextractionofrareearthmetalsfromredmudplaysanimportantroleintheprotectionoftheenvironment,especiallyforthecomprehensiveutilizationofmineralresources.Therecovery
4、ofrareearthmetalsfromredmud,theextractionofusefulelements,andthedevelopmentofhighvalue-addedproductshaveattractedmuchattention.Thisisnotonlytheneedtorealizethecomprehensiveutilizationofthetwometallurgicalresources,butalsotheneedtoprotecttheearthenvironmentonwhichweliv
5、e,aswellasanimportantwaytomaintaintheecologicalbalance.InChina,arareearthmetalintheredmudfromChina'saluminaplantsolidwasteredmud,becauseoftheuseofbauxitemineralstatusfordifferentproductionmethodsandaluminaextractionofrareearthsfromredmudindifferentprocess,providesastr
6、ongbasisforresearch.Rareearthcontentisalsoquitedifferent.GuizhoualuminumplantinBayerredmudthreeoxidationtwoSCpergramof107micrograms,three(twooftotalrareearthelementsrheniumoxide)reached1400microgramspergram;sinteringredmudthreeoxidationtwoSC92.5micrograms,threemicrogr
7、amsofl320tworheniumoxide.RedmudinZhengzhoualuminumfactorythreeoxidation,twoscandium70.5micrograms,threeoxidationtworhenium,66micrograms.RedmudinShanxialuminiumfactoryisthreeoxidation,twoscandium,41.2micrograms,threeoxidation,tworhenium,355micrograms.RedmudinShandongal
8、uminiumfactoryisthreeoxidation,twoscandium,44.9micrograms,threeoxidation,tworhenium,664micrograms.Intheprocessofaluminaprodu
