Kinetics of Ion-Isotopic Exchange Reactions using Nuclear Grade Resins Purolite NRW-4000 and Purolite NRW-6000

作者

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

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nuclear grade resins##common.commaListSeparator## tracer isotopes##common.commaListSeparator## nondestructive technique##common.commaListSeparator## ion-isotopic exchange##common.commaListSeparator## reaction kinetics##common.commaListSeparator## Purolite NRW-4000##common.commaListSeparator## Purolite NRW-6000##common.commaListSeparator## 131I##common.commaListSeparator## 82Br

摘要

The paper deals with an application of nondestructive radio isotopic tracer technique in performance evaluation of two nuclear grade anion exchange resins Purolite NRW-4000 and Purolite NRW-6000. The technique was used to study the kinetics of bromide and iodide ion-isotopic exchange reactions taking place between the external ionic solution and the resin surface for which 131I and 82Br were used as tracer isotopes. It was observe that at a constant temperature of 30°C when the concentration of iodide ions in solution increases from 0.001 to 0.004 mol/L, the specific reaction rate values for iodide ion-isotopic exchange increases from 0.325 to 0.368 min-1 for Purolite NRW-6000, while in case of Purolite NRW-4000, under identical experimental conditions, the specific reaction rate values increases from 0.268 to 0.315 min-1. However, when the concentration of iodide ions in solution is kept constant at 0.001 mol/L and temperature is raised from 30 to 45°C, in case of Purolite NRW-6000 the specific reaction rate values for iodide ion-isotopic exchange decreases from 0.325 to 0.310 min-1, while in case of Purolite NRW-4000, under identical experimental conditions, the specific reaction rate values for iodide ion-isotopic exchange decreases from 0.268 to 0.251 min-1. Also it was observed that at a constant temperature of 30°C, as the concentration of labeled iodide ion solution increases from 0.001 to 0.004 mol/L, the percentage of iodide ions exchanged increases from 76.40 to 83.32% using Purolite NRW-6000 resins. While under the same experimental conditions using Purolite NRW-4000 resins the percentage of iodide ions exchanged increases from 67.32 to 74.88 %. The identical trend was observed for the two resins during bromide ion-isotopic exchange reaction. The overall results indicate that as compared to Purolite NRW-4000 resins, Purolite NRW-6000 resins shows superior performance under identical experimental conditions.   Keywords: Nuclear grade resins, tracer isotopes, nondestructive technique, ion-isotopic exchange, reaction kinetics, purolite NRW-4000, purolite NRW-6000, 131I, 82Br

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, Journal of Nuclear Engineering and Technology, India.  

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出版日期

2014-02-24

期號

卷 4 期 1 (2014)

分類

Research Papers

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