燒結法熟料高濃度溶出漿液沉降分離和洗滌的研究.pdf

1、中南大學碩士學位論文燒結法熟料高濃度溶出漿液沉降分離和洗滌的研究姓名：曹鵬申請學位級別：碩士專業(yè)：有色金屬冶金指導教師：彭志宏20080603中南大學碩士學位論文ABSTRACTStudyonTheSettlementAndWashingofRedMudfromPreparationofGreenLiquorwithHi曲AluminaCc‘SinteringProcessConcentrationinSInteringProcessA

2、BSTRACTIncreasing砧203concentrationinthehydrometallurialprocesscouldsignificantlyincreasetheproductionefficiencyandreducethe‘productioncostinsinterprocess，whichisaresearchfocusinaluminafieldTherearebigresidualvalenceforce

3、，molecularforceandhydrogenbondforceonthesurfaceofredmudparticleinhighconcentrationsolution，whichmakestheredmudadsorbtheionsandcausestrongsonationThereforeadiffusionlayerformsonthesurface，whichhinderstheaggregationamongpa

4、rticlesAsaresult，settlingtheredmudbecomesmoredifficultthanthatinloweraluminaconcentrationInleachingprocess，withhighaluminaconcentration，thesecondaryreactionwillbemoreaggravativeandaluminaandalkalilosswillincreaseifthered

5、mudcouldnotbeseparatedfromtheslurryassoonaspossibleBasedonthemethodofflocculationtoseparatetheredmudfromslurry，agoodmanyofflocculantsarechosentosettletheslurryResultsshowsthatAllisthemostefjficientflocculantnleeffectofth

6、eamountofflocculant，sinterparticlesize，concentrationofNc，andak(Na20kandA1203molecularproportion)onthesettlementperformanceisstudiedTheeffectofinterracialpropertiesofredmudparticle，structureofflocculantandtheblendingmeans

7、offlocculantsonthesettlementperformanceisalsostudied，nletechnologyofredmudsettlementinhi曲concentrationandredmudwashingprocessisputforwardinordertoguidethesettlementofhighconcentrationintheindustrialproductionResultsofexp