濕法冶煉鋅渣中銀的工藝礦物學(xué)及其回收研究.pdf

1、分類號(hào)：密級(jí)：級(jí)：學(xué)號(hào)：20090443單位代碼：10407碩士學(xué)位論文論文題目:濕法冶煉鋅渣中銀的工藝礦物學(xué)及濕法冶煉鋅渣中銀的工藝礦物學(xué)及其回收回收研究研究研究方向廢渣綜合利用廢渣綜合利用專業(yè)名稱礦業(yè)工程礦業(yè)工程研究生姓名劉俊壯劉俊壯導(dǎo)師姓名、職稱黃萬撫教授黃萬撫教授二〇一二〇一一年一年十月十五日江西贛州IIAbstractWithmetalelementssuchasCu、Pb、ZnasdevelopmentemphasisChi

2、nausedtonotpayenoughattentiontothedressingrecoveryofsilverthedistributionofsilverinesslagOccurrencetheresearchoftechnologicalmineralogicalacteristics.Thoughstudyontechnologicalmineralogyofsilverinresiduefromwetzincsmelti

3、ngThisthesisintendtoreachesgoalofsilverrecovery.OnthebasisofMicroscopicexaminationofsingsheetwiththehelpofSEMSpectralanalysisthethoughsystematicanalysisoftechnologicalmineralogicalacteristicswhichindicatesthat:Zincslagis

4、consistedof10kindsofmineralthemainsilvermineralsarenativesilvergoldensilverethemainmetalmineralsispyritethemainnonmetallicmineralsisarsenopyrite、residual、quartzfeldspar、chlite.Nativesilvergoldensilvermineismainlyfinecrys

5、talwhichwasparticulatetexturecrystalsizeis0.0200.038mmeventhesmallonesis0.010mmpyriteparticlesizeis0.204mmdiameterofarsenopyriteparticleis0.5mm.Symbioticrelationshipoftheseisthatthecarrierofthemineralispyritearsenopyrite

6、silver.nativesilvergoldensilverminewasinfreestatealargepartofthemwalocatedintheedgeofpyritearsenopyriteinthedleofthem.Onthebasisofresearchingprocessmineralogyofsilver，areasonableprocessingcraftwasobtainedfromtheconclusio

7、nofthisstudy，aseriesoftestswerecarriedoutbyflotation.Adoptingsodiumsilicateasthedepressant，T3asthemodifying，collect1collect2（3：1）astheCombineeffectivecollect，ontheconditionof10%flotationconcentrationwithoutchangingpHvalu

8、etwoclosedcycleexperimentswithoneroughconcentration，twoscavengingfourconcentration，wasexecuted，theindicatthatthesilverconcentrateof6517.5gtwiththerecoveryof71.57%totheiginaleswith80gtgradeofsilverwasachieved.Atthesametim

9、etheanalysisoftheeconomicprobabilitywasmadefminingsbusinessesinthispaper，whichcanberegardedasanusefulreferencetodresssilverfthosesimilarminingsverysignificant.Keywds:UtilizationofsecondresourceProcessmineralogyofsilverZi