Properties and characterization of ion exchange resins

Harland, C. E.

doi:10.1039/9781847551184-00049

Cited by 9 publications

(5 citation statements)

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“…Regarding pure resins, volume changes were the smallest in the case of macroporous cation exchange resin Purolite C 160, and the largest in the case of gel cation exchange resin Diaion TM SA10A. This can be explained by differences between polymer structure of macroporous and gel resins, as macroporous resins are generally highly crosslinked and therefore they are usually tougher and more mechanically resistant [5]. In Figs.…”

Section: Ion Exchange Resinsmentioning

confidence: 88%

“…Among physicochemical characteristics of IERs, type of functional groups, ionic form, water content, ion exchange capacity, swelling, chemical and thermal stability are the most important. The other properties include particle size, uniformity coefficient, density, sphericity or percent of whole beads [4,5]. Ion exchange membranes (IEM) are classified into cation exchange membranes (CEM) and anion exchange membranes (AEM) according to their ionic groups.…”

Section: Introductionmentioning

confidence: 99%

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Characterization of Ion Exchange Material Behavior under Pressure Simulating Electro-Membrane Cell Conditions

Zich

Václavíková

2017

Period. Polytech. Chem. Eng.

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Section: Ion Exchange Resinsmentioning

confidence: 88%

Section: Introductionmentioning

confidence: 99%

Characterization of Ion Exchange Material Behavior under Pressure Simulating Electro-Membrane Cell Conditions

Zich

Václavíková

2017

Period. Polytech. Chem. Eng.

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“…Although there are many alternative methods available for characterization of ion exchange resins (de Villiers et al 1964;Harland 1994;Zeng et al 1996;Patel et al 2004;Liu et al 2005;Masram et al 2010), radioactive tracer isotopic technique is one of the sensitive analytical techniques (Sood et al 2004;IAEA 2004). By monitoring the radioactivity continuously, the migration of the tracer and in turn, of the bulk matter under investigation, can be followed.…”

Section: Introductionmentioning

confidence: 99%

Radio analytical technique in characterization of nuclear grade ion exchangers Duolite ARA-9366B and Purolite NRW-5010

Singare¹

2014

J Anal Sci Technol

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Background: Ion exchange is one of the widely used techniques in nuclear industries for treatment of liquid radioactive waste. Regular efforts are being made in order to develop new ion exchange resins and their subsequent characterization so as to bring about efficient industrial performance. Among the different characterization techniques, radioactive tracer technique is one of the sensitive analytical techniques, mainly because of its non-destructive nature, high detection sensitivity, capability of in-situ detection, and physico-chemical compatibility with the material under study. The present work was therefore performed to demonstrate the application of the radioactive tracer technique in performance evaluation of two closely related nuclear grade anion exchange resins Duolite ARA-9366B and Purolite NRW-5010. Br were used in the present experimental work to trace the kinetics of iodide and bromide ion-isotopic exchange reactions. The radioactivity was measured at various time intervals using γ-ray spectrometer having well type NaI(Tl) scintillation detector of Nucleonix make. From the radioactivity measured at various time intervals, the values of specific reaction rate (min −1 ), amount of ion exchanged (mmol), and initial rate of ion exchange (mmol/min) were calculated.Results: It was observed that for iodide ion-isotopic exchange reaction under identical experimental conditions of 30.0°C, 1.000 g of ion exchange resins and 0.001 mol/L labeled iodide ion solution, the above values were calculated as 0.246, 0.155, and 0.038, respectively for Purolite NRW-5010 resin, which was higher than the respective values of 0.201, 0.139, and 0.028 obtained for Duolite ARA-9366B resins. The identical trend was observed for the two resins during bromide ion-isotopic exchange reaction. Conclusions: The overall results indicate that under identical experimental conditions, Purolite NRW-5010 resins exhibit superior performance over Duolite ARA-9366B resins. The same technique can be extended further for performance evaluation of different nuclear as well as non-nuclear grade ion exchange resins.

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“…Although there are different methods reported in the literature for evaluation and characterization of ion exchange resins [8][9][10][11], but the isotopic tracers technique as one of the non destructive radio analytical technique offer several advantages such as high detection sensitivity, capability of in-situ detection, limited memory effects and physico-chemical compatibility with the material under study [12,13].…”

Section: Introductionmentioning

confidence: 99%

Radio Analytical Nondestructive Technique in Performance Evaluation of Organic Base Ion Exchange Resins Purolite NRW-6000 and Duolite A-378

Singare¹

2013

ILCPA

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Nondestructive radioanalytical technique using short lived isotopes 131 I and 82 Br was used as tracers to study the kinetics of iodide and bromide ion-isotopic exchange reactions. The kinetic data so obtained was used to evaluate the performance of organic base anion exchange resins Purolite NRW-6000 and Duolite A-378. It was observed that for iodide ion-isotopic exchange reaction performed at 40.0 °C using 1.000 g of ion exchange resins and 0.003 mol/L labeled iodide ion solution, the values of specific reaction rate (min -1 ), amount of iodide ion exchanged (mmol), initial rate of iodide ion exchange (mmol/min) and log K d were calculated as 0.332, 0.582, 0.193 and 16.2 respectively for Purolite NRW-6000 resin, which was higher than the respective values of 0.210, 0.421, 0.088 and 14.7 as that obtained for Duolite A-378 resins. Also at a constant temperature of 40.0 °C, as the concentration of labeled iodide ion solution increases from 0.001 mol/L to 0.004 mol/L, the percentage of iodide ions exchanged increases from 74.68 % to 79.48 % using Purolite NRW-6000 resins and from 52.30 % to 58.90 % using Duolite A-378 resins. The overall results indicate superior performance of Purolite NRW-6000 resins over Duolite A-378 resins under identical operational parameters. It is expected here that the present technique can be extended further for characterization of different ion exchange resins which will further help in the selection of those reins for the specific industrial application.

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Properties and characterization of ion exchange resins

Cited by 9 publications

References 0 publications

Characterization of Ion Exchange Material Behavior under Pressure Simulating Electro-Membrane Cell Conditions

Characterization of Ion Exchange Material Behavior under Pressure Simulating Electro-Membrane Cell Conditions

Radio analytical technique in characterization of nuclear grade ion exchangers Duolite ARA-9366B and Purolite NRW-5010

Radio Analytical Nondestructive Technique in Performance Evaluation of Organic Base Ion Exchange Resins Purolite NRW-6000 and Duolite A-378

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