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1、湘潭大学硕士学位论文147r/min．Undertheoptimumcondition,validationexperimentswerecarriedout.Themeasuredvanadiumleachingefficiencywereanaverageof69.2%andfitthepredictedvalues.Itindicatedthatthemodelisaccurate.Inthecourseofkeepingalternateaerobicandanaerobiccondition,theresultsshowedthatt
2、heleachingefficiencyofvanadiumreached65.0%,whentheconditionoftheexperimentwas30g/Lforpulpdensity,32℃forleachingtemperature,initialpHvalueof2.1androtationspeedof147r/min．ThescanningresultsshowedAcidthiobacillusferrooxidansadsorbedonthesurfaceofmineralthestonecoalandtheadsorpt
3、ionwasbeneficialfortheoxidationanddecomposition.Thebioleachingofvanadiumfromvanadium-bearingstonecoalhasbeenstudiedbyusingmixedbacteriaofAcidthiobacillusferrooxidans.Theresultsshowedthebestconditionoftheexperimentwas30g/Lforpulpdensity,35℃forleachingtemperature,initialpHvalu
4、eof1.8androtationspeedof150r/minonsingle-factorexperiments.Whenthebestconditionwassatisfied,theleachingefficiencyofvanadiumreached68.5%.Theoptimizedresultsshowedthattheleachingefficiencyofvanadiumcouldreach69.2%,whentheoptimumconditionoftheexperimentwas3%forpulpdensity,32℃fo
5、rleachingtemperature,initialpHvalueof1.82androtationspeedof161r/min．Undertheoptimumcondition,validationexperimentswerecarriedout.Themeasuredvanadiumleachingefficiencywereanaverageof68.5%andfitthepredictedvalues.Itindicatedthatthemodelisaccurate.Inthecourseofkeepingalternatea
6、erobicandanaerobiccondition,theresultsshowedthattheleachingefficiencyofvanadiumreached67.0%,whentheconditionoftheexperimentwas30g/Lforpulpdensity,32℃forleachingtemperature,initialpHvalueof2.1androtationspeedof147r/min．ThescanningresultsshowedmixedbacteriaofAcidthiobacillusfe
7、rrooxidansadsorbedonthesurfaceofmineralthestonecoalandtheadsorptionwasbeneficialfortheoxidationanddecomposition.Keywords:vanadium-bearingstonecoal；Acidthiobacillusferrooxidans；optimizationofleachingparameterIV含钒石煤中钒的微生物浸出工艺研究目录第1章绪论...........................................
8、.....................................................................11.1钒的
