Nondestructive Technique in Study of Purolite NRW-5010 and Duolite A-638 Anion Exchange Resins

作者

  • P. U. Singare Department of Chemistry, Bhavan’s College, Munshi Nagar, Andheri (West), Mumbai 400058, India

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Nondestructive technique##common.commaListSeparator## radioactive tracer isotopes##common.commaListSeparator## 131I##common.commaListSeparator## 82Br##common.commaListSeparator## reaction kinetics##common.commaListSeparator## characterization##common.commaListSeparator## isotopic exchange reactions##common.commaListSeparator## Duolite A-638##common.commaListSeparator## Purolite NRW-5010##common.commaListSeparator## ion exchange resins

摘要

The present paper is one of the interesting applications of radioactive isotopes in nondestructive technique for performance evaluation of anion exchange resins Purolite NRW-5010 and Duolite A-638. The radioactive isotopes 131I and 82Br were used to trace the kinetics of ion-isotopic exchange reactions taking place between the resin surface and external ionic solution. It was observed that for bromide ion-isotopic exchange reaction at 35.0°C, when the concentration of bromide ions in solution increases from 0.001 to 0.004 mol/L, the value of specific reaction rate increases from 0.194 to 0.231 min−1 for Purolite NRW-5010 resin; and from 0.090 to 0.121 min−1 for Duolite A-638 resin. However, when the concentration of bromide ions in solution is kept constant at 0.002 mol/L and temperature is raised from 30.0 to 45.0 °C, the specific reaction rate value decreases from 0.215 to 0.186 min−1 for Purolite NRW-5010 resin and from 0.110 to 0.086 min−1 for Duolite A-638 resin. The identical trend was observed for the two resins during iodide ion-isotopic exchange reaction. From the results, it appears that Purolite NRW-5010 resin shows superior performance as compared to Duolite A-638 resin under similar experimental conditions. It is expected here that the same technique can be extended further for characterization of different ion exchange resins so as to bring about their efficient industrial applications.Keywords:  Nondestructive technique, radioactive tracer isotopes, 131I, 82Br, reaction kinetics, characterization, isotopic exchange reactions, Duolite A-638, Purolite NRW-5010, ion exchange resins

作者簡介

  • ##submission.authorWithAffiliation##
    Dr. Pravin U. Singare completed his Bachelor’s degree in Chemistry (1994), Masters Degree in Inorganic Chemistry (1997) and Ph.D. (Chemistry) from University of Mumbai (1999). He is having 10 years of Industrial experience in Process Development and Research related to synthesis, recycling of industrial grade homogeneous catalysts and concentration of multimetal sulfide ore by froth flotation technique and subsequent analysis by various instrumental methods. He joined Bhavan’s college as a Lecturer in Department of Chemistry in February, 2004, and at present working as an Assistant Professor in Physical & Analytical Chemistry. He guided 15 students for M.Phil. Degrees in Chemistry from Madurai Kamraj and Allagappa University and at present 08 students are working for their M.Sc. and Ph.D. degree under his guidance. He is approved research guide of University of Mumbai, JJT University and Pacific University Rajasthan, for M.Sc. (By Research) and Ph.D. He has presented 30 research papers in various National and International conferences. He is having 160 research papers in various referred National and International Chemical Journals. His research areas of interest are synthesis and regeneration of Homogeneous catalyst, Radio analytical applications, Nuclear Chemistry, Ion exchange techniques, Polymer degradation studies, Environmental analysis, Trace elemental analysis in medicinal plants and Hydrometallurgy. His research work on environmental pollution due to toxic heavy metals was appreciated by The American Association for Advancement of Science (AAAS) Science. The article on one of his research work was press released by EurekAlert! A Global News Service operated by AAAS on 08th August, 2011 and Times of India, Mumbai Edition on 10th August, 2011. He is the member of Indian Society of Analytical Scientists, National Association for Application of Radio Isotopes and Radiation in Industry (NAARI), Indian Nuclear Society (INS), and Indian Association of Nuclear Chemists & Allied Scientists (IANCAS) all from Bhabha Atomic Research Centre, (B.A.R.C.), Anushaktinagar, Mumbai, and Indian Council of Chemists (ICC), Agra, India. His credentials have earned a place in 2009, 26th edition of MARQUIS WHO’s WHO IN THE WORLD, USA. He was also awarded with the title IBC Top 100 Scientist 2009, by The International Biographical Centre, St Thomas' Place, ELY, Cambridgeshire, CB7 4GG, Great Britain. He is also on the Editorial Board of Journal Interdisciplinary Environmental Review, published by Inderscience Publishers Ltd. UK, Journal Physical Chemistry published by Scientific and Publishing (SAPUB) USA and Journal   Global Advanced Research Journal of Environmental Science and Toxicology, Nigeria, International Letters of Chemistry, Physics and Astronomy, Polland.  

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出版日期

2013-12-16

期號

卷 3 期 3 (2013)

分類

Research Papers

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