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《Journal of Xinyang Normal University(Natural Science Edition)》 2010-03
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Preparation and Adsorption to Aniline of Organobentonite

YANG Xing-kun,BAI Yu-ping,ZHANG Yu(College of Chemistry and Chemical Engineering,Xinyang Normal University,Xinyang 464000,China)  
Organobentonite was prepared from montmorillonite(MMT) of Xinyang Shangtianti by sodium version and cation exchange with cetyltrimethyl ammonium bromide(CTMAB).The optimum of adsorption of aniline on organobentonite in aqueous solution were investigated with orthogonal L16(44)experiments.The aniline removal rate reached 84.2% at a aniline concentration of 20 mg/L in the wastewater,contact time of 50 minute,contact temperature of 40 ℃,pH 7,and dosage of organobentonite of 80 g/L.The relationship between adsorption capacity and equilibrium concentration fits the isothermal adsorption equations of Freundlich.
【Fund】: 河南省科技攻关项目(0624250025);; 河南省教育厅自然科学研究项目(2006150024)
【CateGory Index】: X703
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