THERMODYNAMIC STUDY ON ADSORPTION OF AROMATIC SULFONIC ACIDS ONTO MACROPOROUS WEAK BASE ANION EXCHANGER FROM AQUEOUS SOLUTIONS-中国期刊网

摘要 Theadsorptionequilibriumisothermsofthreearomaticsulfonicacidcompounds,2-naphthalenesulfonicacid,ptoluenesulfonicacidandp-chlorobenzenesulfonicacid,fromaqueoussolutionsbymacroporousweakbaseanionexchangerwithinthetemperaturerangeof293K-313Kwereobtained.Severalisothermequationswerecorrelatedwiththeequilibriumdata,andtheexperimentaldatawasfoundtofitthethree-parameterRedlich-Petersonequationbestwithintheentirerangeofconcentrations.Thestudyshowedthatthehydrophobicityofsolutehasdistinctinfluenceonadsorptioncapacityoftheanionexchangerforthearomaticsulfonicacid.Moreover,estimationsoftheisostericenthalpy,freeenergy,andentropychangeofadsorptionwerealsoreported.Thepositiveisostericenthalpyandentropychangeforadsorptionindicateanendothermicandentropydrivenprocessinthepresentstudy.

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THERMODYNAMIC STUDY ON ADSORPTION OF AROMATIC SULFONIC ACIDS ONTO MACROPOROUS WEAK BASE ANION EXCHANGER FROM AQUEOUS SOLUTIONS

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THERMODYNAMIC STUDY ON ADSORPTION OF AROMATIC SULFONIC ACIDS ONTO MACROPOROUS WEAK BASE ANION EXCHANGER FROM AQUEOUS SOLUTIONS

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