Kinetics and Equilibrium Studies for the Removal of Cobalt, Manganese, and Silver in Ethanol using Dowex 50W-x8 Cation Exchange Resin
作者： Philiswa N. Nomngongo , J. Catherine Ngila , Titus A. M. Msagati , Brenda Moodley
DOI: 10.1080/01496395.2014.907317
关键词:
摘要: Organic solvents such as ethanol, find a wide range of applications in fuel, pharmaceutical industries, food and paint formulations, among others. The removal Ag(I), Co(II), Mn(II) ions ethanol by cation exchange resin, Dowex 50W-x8, was investigated. adsorption characteristics metal onto 50W-x8 resin were described Langmuir isotherms. maximum sorption capacities at 298 K obtained 47.4 mg g−1, 52.6 58.5 g−1 for Mn(II), respectively. data also fitted to Temkin Dubinin-Radushkevich isotherm models evaluate other properties. ion silver, cobalt, manganese on followed pseudo-second-order kinetics, the intraparticle diffusion rate-determining step. thermodynamic parameters indicated that spontaneous (negative ΔG°) endothermic nature (positive ΔH°) implying the...
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