硝酸溶液中氧化铜矿浸出工艺参数优化及动力学模拟（英文）-豆柴文库

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硝酸溶液中氧化铜矿浸出工艺参数优化及动力学模拟（英文）
Title:OptimizationofProcessParametersandKineticModelingofCopperOxidativeLeachinginNitricAcidSolution
Abstract:
Copperextractionfromoxidizedoresisanessentialprocessinthemetallurgicalindustry.Inthisstudy,weaimedtooptimizetheprocessparametersandsimulatethekineticsofcopperleachingfromcopperoxidemineralsinanitricacidsolution.Theoptimizationofprocessparametersinvolvesinvestigatingtheeffectsofvariousfactors,suchasacidconcentration,reactiontemperature,particlesize,andagitationrate,ontheleachingefficiency.Additionally,kineticmodelingwasperformedtounderstandtheunderlyingmechanismoftheleachingprocessandpredicttheleachingbehaviorunderdifferentconditions.
Introduction:
Copperisanindustriallyimportantmetalwithvariousapplicationsinelectrical,automotive,andconstructionindustries.Thetraditionalmethodsofcopperextractionincludepyrometallurgicalsmeltingandhydrometallurgicalleaching.Leachingprocessesareincreasinglypreferredduetotheirlowenergyconsumptionandenvironmentalbenefits.Amongthevariousleachingagents,nitricacidhasshownpromisingresultsintheoxidativeleachingofcopperoxides.
Methods:
1.SamplePreparation:Copperoxidemineralswerecollectedandfinelygroundtoobtainarepresentativesampleforexperimentation.
2.LeachingExperiments:Aseriesofleachingexperimentswereperformedbyvaryingtheprocessparameterssuchasacidconcentration,reactiontemperature,particlesize,andagitationrate.Copperextractionefficiencywasdeterminedbyanalyzingthecoppercontentintheleachsolutionusingappropriateanalyticaltechniques.
3.KineticModeling:Thekineticsofcopperleachingwerestudiedusingappropriatekineticmodels,suchasshrinkingcoremodelordiffusion-controlledmodels.Themodelparameterswereestimatedbyfittingtheexperimentaldatatothemodelequationsusingcurve-fittingalgorithms.
ResultsandDiscussion:
1.ProcessParameterOptimization:Theeffectsofacidconcentration,reactiontemperature,particlesize,andagitationrateonthecopperextractionefficiencywereevaluated.Optimalconditionsweredeterminedbasedonthehighestcopperrecovery