选矿捕收剂对一水硬铝石型铝土矿溶出过程的影响

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1、东北大学硕士学位论文选矿捕收剂对一水硬铝石型铝土矿溶出过程的影响姓名：尤俊华申请学位级别：硕士专业：有色金属冶金指导教师：毕诗文;于海燕20060201东北大学硕士学位论文AbstractEffectsofOreDressingCollectoronDiasporeBauxiteDigestionProcessAbstractThebauxiteresourcesofchinaisabundantandmostofltisdiaspore．theratioofaluminumtosiliconislesssev

2、enineightypercentbauxite．Inrecentyears，withtheexploitationmadusingofit，thebauxiteresourcesbecomefurtherpoorly．Thesinteringmethodortheconsociationmethodisthemainproducingmethodinchina，anditsenergy-consumingisthreeorfourtimesofBayermethod’s．Comparingwithotherf

3、oreigncountries．thedifferencesisgreatanditreducesthecompetitionabilityandthecontinuing—developmentabilitygreatly．Intheperiodof“nine—five”、accordingtothecharacteristicsofChinesebauxite，weexploitsuccessfullytheOredressing-Bayermethodwhichisadapttoaluminaproduc

4、ingwiththemiddling—lowratioofaluminumtosiliconbauxite．Thetechniqueinauguratesanewwayforutilizingourabundantandlow—costbauxiteresourcesreasonably,andithasimportantrealist—significationandfar-reachingstratagemsignification．Comparingwiththerawbauxite，theprepara

5、tionconcentratecontainspaucityofhumicacidorganicsubstance，besidesitalsobringinpaucityoffattyacidorganicsubstance--floating—collectorinfloatation．Thehumicacidorganicsubstance’saction，infuenceandchanginglawinBayerprocesshavebeenstudiedlargelyandprofoundlyunder

6、stoodhomeandabroad．Buttherearen’treportsaboutaction，influenceandchanginglawoffattyacidorganicsubstanceinBayerprocess．Whetherthefloating-collectorcumulatesinBayerprocess，andwhetherithaseffectsontheBayerdissolving，redmudsedimentationandsodiumaluminatesolution’

7、sinoculatingseeddecompositionisoneofthefocusproblemwhichhasbeenpaidattentiontobytheexpertsofaluminaindustry,anditisalsooneofthebigobstaclesintheindustrializationoftheOredressing-Bayermethod．Inthispaper,westudythelong-hydricarbonchainfattyacidcollectorfromthr

8、eeaspectsasfollow：Firstly,studythecollector’sinfluenceonstrippingsodiumaluminatesolution’sphysicalcharacteristicssuchasviscosity，density，electricconductivity,interracialtension；Secondly,seeabout