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》由会员上传分享，免费在线阅读，更多相关内容在应用文档-天天文库。

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