凹凸棒粘土与其在印染行业中的应用

凹凸棒粘土与其在印染行业中的应用

ID:31951920

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时间:2019-01-29

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1、O幽凹凸捧粘±及其在印染行业中的应用APPLICATIoNoFTHEATTAPULGITECLAYINDYEINGANDFINISHINGINDUSTRYABSTRACTAffapulgiteisakindofnaturalclayminerals.Owingtoitsproperties.such丛specialcrystalstructureandsuperficialcharacter,attapulgitepossessesfineadsorptive,rheologic,catalyticandfillingcapabilities,whichendowitwithionexc

2、hange,heatstabilization。saltresistance.Accordingly,attapulgitehascomprehemiveapplication.Thesurfacemorphology、surfacearea,weight-lostrate,functionalgroupsandcrystalstructureofattapulgiteclayWasanalyzedbyfieldemissionscanningelectronmicroscope,specificsurfacearea(BETmethod),thermalproperties(TGA),

3、FT-IRandXRD.TheCECoftheclayis40.44retool/1009酚themethodofammoniumchloride-anhydrousethanol。Inthispaperpreparation,conditionofadsorptionofattapulgiteclayonheavyrnantalionswerestudiedsystemically:TheeffectsofadsorptionontheadsorptionpropertiesforCrwerestudied.Theresultsshowedthat,theoptimumtechnolo

4、gicalconditionsareasfollows:theadsorptiontemperatureis30"C,theadsorptiontime30min,thepH7,Inthiscondition。theadsorptioncapacitiesforC一+,Cu2+,Mn2+,Fehare48.66mg/g,32,72mg/g,10.22mg/g,4.85mg/g,respectively.Useingoctadecyltrimethylammoniumchloridemodifiedtheattaptilgiteclay,Itcarlbe.stir@thatoetadear

5、yldimethylammoniumchlorideWaSconnectedinattapulgiteclaybytheX-raydiffraction(XRD)andFT-IRspectroscopy.Theadsorptiondataplacidyellow49ontocationicmodifiedattapulgiteclaywasfittedwelltotheLangmuirisotherms.Theadsorptionenthalpychangeswere11,47l(J/molandthev=luesofadsorptionentropychangeswerepositiv

6、e-theadsorptionGibbsfreeenergychangeswasnegative.Theprocessesoftheadsorptionoftheacidyellow49ontothecationicmodifiedattapulgiteclayWasendothermicandspontaneous。The凹凸棒粘土及其在印染行业中的应用adsorptivekineticsdatawereingoodagreementwiththepseudo·secondrateequation·Theadsorptioncapacitycationicmodifiedattapul

7、giteclaywasincreasedwithdifferentdegreeofaniondve.Anditssanlmtedadsorptioncapacitywasaffectedbythereducingofelectricchargesinthedye。Theapplicatedeffectthattheattapulgiteclaywerestudiedinthepre。processingandreactivedyes

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