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INTERNATIONAL JOURNAL OF PHARMACEUTICAL RESEARCH

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IJPR included in UGC-Approved List of Journals - Ref. No. is SL. No. 4812 & J. No. 63703

Published by : Advanced Scientific Research
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0975-2366
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IJPR 9[3] July - September 2017 Special Issue

July - September 9[3] 2017

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Sorption of Zn (II) and Cr (III) Ions into Ion Exchangers Obtained on the Basis of Local Raw Materials

Author: ISMOILOVA HIMOYAT, KHASANOV SHODLIK, MUKHAMEDIEV MUKHTARJAN, BEKCHANOV DAVRONBEK, YARMANOV SHERIMMAT, YODGOROV BAKHTIYOR
Abstract: The process of sorption of Zn (II) and Cr (III) ions into PPE-1 anion exchange resin and PPE-1-P polyampholyte containing amine and phosphite group preservatives, obtained on the basis of local raw materials, was studied in artificial solutions under static conditions. Factors that influence the sorption process, namely time dependence, temperature effect, concentration dependence, were studied. The process of sorption of metal ions into ion exchangers was studied in the Pseudo-First-Order and Pseudo-Second-Order kinetic models, and it was determined by studying the absorption kinetics that the sorption process was the Pseudo-Second-Order Kinetic Model. The Langmuir and Freundlich constants of the isotherm of absorption of Zn (II) and Cr (III) ions into anion exchange resin and polyampholyte at different temperatures were calculated. Based on the results of the study, the thermodynamic parameters of the sorption process, the isothermal-isobaric potentials, the changes in the values of free energy (?G), enthalpy (??) and entropy (?S) were found by calculating.
Keyword: polyvinylchloride, anion exchanger, polyampholyte, adsorption, chemisorption, kinetics, isotherm.
DOI: https://doi.org/10.31838/ijpr/2020.12.03.236
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