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1、叶腊石微粉论文：叶腊石微粉漂白实验研究【中文摘要】叶腊石是一种含水的铝硅酸盐,属于层状硅酸盐矿物,具有良好的化学稳定性,耐高温性以及机械加工性能。但由于叶腊石原矿中含有一定的杂质元素,以有机质、含铁矿物为主,严重影响了叶腊石的纯度与白度,制约了叶腊石的应用。开发合适的叶腊石矿物粉体增白技术,并开发出一系列叶腊石深加工产品,是提升行业技术水平,将资源优势转化为经济优势的必由之路。本课题根据叶腊石的结构特点,开发叶腊石【英文摘要】Pyrophylliteisadioctahedral2:1claymineral,whichisahydrousaluminiumsilicat
2、ewithSi4Al2O10（OH）2andhasgoodchemicalstability,resistancetoheatandmechanicalprocessingproperties.However,therawpyrophyllitemineralcontainsironoxidesandorganiccompoundsasthemainlyimpurity,whichdeterioratethepurityandwhitenessofpyrophylliteseriouslyandrestricttheirapplications.Toupgradethe
3、techniquelevelofmineralprocessingindustryandtransformtheresourcesuperioritytoaneconomicone,wehavetodevelopsuitablebleachingtechnologiesandaseriesofdeepprocessingproducts.Thisdissertationisbaseonthestructuralcharacteristicsofpyrophyllite,anddevelopsthepyrophyllitereductionbleachingprocess
4、:BleachingexperimentsonpyrophyllitepowderwerecarriedoutbythemethodofacidassoakingagentandNa2S2O4asreducer,whichcanimprovethewhitenessofpyrophyllite.Somefactorsthatinfluenceironleachingfrompyrophyllitewereinvestigatedinourexperiments,suchaskindsofacids,acidconcentration,temperature,soakin
5、gtime,dosageofNa2S2O4,dosageofoxalicacidandsoon.Andtheaimofthisworkistryingtofindoutalesscomplex,cost-effectiveandeco-friendlyapproachforironremovalfrompyrophyllitepowder.Theresultsshowthat:Hydrochloricacid,aceticacidoroxalicacidwhichwasasasoakingagent,couldbeusedtoplayagoodbleachingeffe
6、ct.Agreatnumberofexperimentswereperformedtotheoptimaltechnologicalparametersasfollows:thehydrochloricacidconcentrationwas20%（V/V）,thetemperaturewas80℃,thesoakingtimewas2h,thedosageofpyrophyllitepowderandNa2S2O4andoxalicacidwas40:2:1.Afterbleaching,thepyrophyllitepowderwhitenesswasincreas
7、edfrom69.5%to84.1%.Thisprocessofbrighteningpyropyllitehasthecharacteristicsofsimpleandlowercosts.【关键词】叶腊石微粉白度漂白保险粉【英文关键词】pyrophyllitepowderwhitenessbleachingNa2S2O4【目录】叶腊石微粉漂白实验研究【备注】索购全文在线加好友：1.3.9.9.3.8848同时提供论文写作一对一指导和论文发表委托服务摘要4-5ABSTRACT5-6目录7-9第一章绪论9-291.1引言91.2叶腊石的
