鉬精礦焙燒塵中錸回收的工藝研究.pdf

1、81R16分類號學(xué)號西安建筑科技大學(xué)學(xué)位論文翎精礦焙燒’l十錸I、0收的工t棚宄作者一一型稈一指導(dǎo)教師姓名專塑哲教譬申請學(xué)位級別竺專業(yè)名稱蘭令尊!!!論文提交19期學(xué)位控千單位200504論文答辯日期200505西安建筑科技大學(xué)答辯委員會(huì)主席。一西安建筑科技大學(xué)碩士論文StudyontheProcessofRecoveringRheniumfromCalcinationFumeofMolybdenumConcentrateSpecial

2、ity：MetallurgicalPhysicalChemistryName：ZhangJixiangInstructor：ProfessorLanXinzheAbstractBasedOllliteraturereviewoftheexistingrheniumrecoverymethodshomeandabroadthispapermainlydenswiththeprocessofrecoveringrheniumfromcalc

3、inationsfumeofmolybldenumconcentrateTheprocessesofleach，resinadsorption，desorptionandcrystallizationwereappliedintherhenium’SextractiononthebasisofexploratoryresearchInthewaterleachingexperimentsthefactorsrelatingtothele

4、achingprocesssuchastemperatureleachingtimeandratioofliqnidtosolidweretestedapreferableleachingprocesswasobtained：thetemperatureWas333K；leachtimeWaS2hoursandtheratioofliquidtosolidWaS4：1Thetotalleachingratereached964perce

5、ntOnthebasisofthesystematicalanalysisofleachliquor’Scomponentsandrheniumsexistenceslate，theresin2017whichisakindofstrongbasicanionexchangeresinWasusedintheexperimentstoabsorbrhenium，andtheeffectsofsolutionacidityconcentr

6、ationtimeetcwerestudiedtheprefembleresultswereobtained：9％NIhCI5％NH40Handlmol／LHN03wereusedasthestfippantofrhenittmandmolybdenumrespectivelyundertheroomtemperature；thevolumeratioofstrippanttesinis20：1andthedesorptivetimei

7、stwohoursThedesorptiverateofmolybdenumandrheniumisabove96％and97％respectivelyAftertheevaporation，concentrationandcrystallizationofthedesorptivesolution，thecrystalsNH4Re04wasextracted，anditspurityreached995％，Thisresearchwe