燒結(jié)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(xué)碩士學(xué)位論文燒結(jié)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(xué)位級別：碩士專業(yè)：有色金屬冶金指導(dǎo)教師：彭志宏20080603中南大學(xué)碩士學(xué)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