微细鳞片石墨和隐晶质石墨选矿工艺特性差异研究

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1、I万方数据AbstractItiscrystalizedstatusofgraphiteandsizeofgraphiteflakethatdeterminesthetechnologicalproperties,industrialvalue,processingmethodsandapplicationofgraphite.Thebeneficiationprocesscharacteristicsoflargeflakegraphite,fineflakegraphiteandaphani

2、ticgraphitearedifferentfromeachother.Studyonbeneficiationprocesscharacteristicsofdifferentgraphiteistoconfirmthesuitableprocessmorequicklyandpredictconcentrateindicatorsatthesametimeaccordingtothepropertiesofgraphiteore.Ithasgreatsignificanceonutiliz

3、inggraphiteresourcesmorerationallyandefficiently.Duetothebothcommonnessanddifferencesbetweenfineflakegraphiteandaphaniticgraphite,adetailedresearchofbeneficiationprocessonfineflakegraphiteoreinBaotouofInnerMongoliaandaphaniticgraphiteoreinWangqingofJ

4、ilinwasconductedwithroughingandcleaningconditions,opencircuitandlockedcycle.Thesuitabledressingprocessesfortwokindsoforehadbeenconfirmedbytheresearchtoformtargetedandeffectivegraphitebeneficiationtechnologyroutesonthebasisoffindingoutthedifferencesof

5、beneficiationprocesscharacteristicsbetweenthesetwokindsofore.Alockedcycleprocesswithone-timeroughgrinding,one-timeroughingandone-timescavenging,five-timeregrindingandsix-timecleaningtotheroughconcentrateontherefractoryfineflakegraphiteorewithlowconte

6、ntoffixedcarbonwasconfirmedbyoneresearch.Theconcentrategradewasupgradedfrom3.98%to88.43%,andtherecoverywas75.29%.TheconcentrateindexeswasuptothenationalcarboninLZ(-)38-88standard.Anopen-circuitwithone-timeroughgrinding,one-timeroughingandone-timescav

7、enging,four-timeregrindingandsix-timecleaningtotheroughconcentrateontheaphaniticgraphiteorewasconfirmedbytheotherresearch,andtwokindsofconcentratewereproductedbythisprocess.Thecontentsoffixedcarbonofthesetwokindsofconcentratewere86.09%and64.81%,andth

8、erecoverieswererespectively55.63%and34.87%.ThetwokindsofconcentrateindexeswereuptothenationalcarboninLZ(-)45-86andLZ(-)75-60standardrespectively.II万方数据Analysesondifferenceofbeneficiationprocesscharacteristicsindicatedthat“stagegrinding-stageflotation