Molybdenum isotope fractionation in ion exchange reaction by using anion exchange chromatography

2014 ◽  
Vol 303 (2) ◽  
pp. 1429-1434 ◽  
Author(s):  
Yu Tachibana ◽  
Yuki Yamazaki ◽  
Masao Nomura ◽  
Tatsuya Suzuki
Keyword(s):  
Ion Exchange ◽  
Exchange Reaction ◽  
Anion Exchange ◽  
Isotope Fractionation ◽  
Anion Exchange Chromatography ◽  
Exchange Chromatography ◽  
Molybdenum Isotope ◽  
Ion Exchange Reaction

Ion-exchange separation of radioiodine and its application to production of 124I by alpha particle induced reactions on antimony

2015 ◽  
Vol 103 (8) ◽  
Author(s):  
Md. Shuza Uddin ◽  
Syed M. Qaim ◽  
Alex Hermanne ◽  
Ingo Spahn ◽  
Stefan Spellerberg ◽  
...  
Keyword(s):  
Ion Exchange ◽  
Anion Exchange ◽  
Alpha Particle ◽  
Radiochemical Separation ◽  
Anion Exchange Chromatography ◽  
Exchange Chromatography ◽  
Ion Exchange Separation ◽  
Basic Parameters

AbstractThe basic parameters related to radiochemical separation of iodine from tellurium and antimony by anion-exchange chromatography using the resin Amberlyst A26 were studied. The separation yield of

scholarly journals Study on Halide Ions Selectivity of Industrial Grade Anion Exchange Resin Auchlite A-378

2014 ◽  
Vol 30 ◽  
pp. 44-50 ◽  
Author(s):  
P.U. Singare ◽  
A.N. Patange
Keyword(s):  
Ion Exchange ◽  
Exchange Reaction ◽  
Anion Exchange ◽  
Exchange Resin ◽  
Anion Exchange Resin ◽  
Equilibrium Constants ◽  
Exchange Reactions ◽  
Ion Exchange Reaction ◽  
Industrial Grade ◽  
Bromide Ions

The thermodynamic approach was applied to predict the trend selectivity of industrial grade anion exchange resin Auchlite A-378 in chloride form towards iodide and bromide ions in the solution. The study was conducted by performing the Clˉ/Iˉ and Clˉ/Brˉ uni-univalent ion exchange reactions under gradually increasing temperature conditions. The thermodynamic equilibrium constants K values were used to calculate the enthalpies of the two uni-univalent ion exchange reactions. It was observed that the K values for Clˉ/Iˉ ion exchange reaction were higher than Clˉ/Brˉ exchange reaction under identical experimental conditions. Also the enthalpy values for the two uni-univalent ion exchange reactions were calculated as -39.51 and -18.38 kJ/mol respectively. The high K and low enthalpy values obtained for Clˉ/Iˉ ion exchange reaction is responsible for higher selectivity of the resin towards iodide ions as compared to that towards bromide ions, when both the ions are present in the same solution.

scholarly journals Thermodynamics of Ion-Exchange Reaction in Predicting the Ionic Selectivity of Auchlite ARA-9366 and Auchlite A-378 Anion Exchange Resins

2014 ◽  
Vol 25 ◽  
pp. 1-7 ◽  
Author(s):  
P.U. Singare ◽  
A.N. Patange
Keyword(s):  
Ion Exchange ◽  
Exchange Reaction ◽  
Anion Exchange ◽  
Ion Selectivity ◽  
Exchange Reactions ◽  
Ionic Selectivity ◽  
Iodide Ions ◽  
Ion Exchange Reaction ◽  
Anion Exchange Resins ◽  
Exchange Resins

The paper deals with predicting the iodide ion selectivity of nuclear and non-nuclear grade anion exchange resins. The ionic selectivity prediction was made on the basis of thermodynamic data of Clˉ/I ˉ ion exchange reaction. It was observed that with rise in temperature from 30.0°C to 45.0 °C, the equilibrium constant (K) values were observed to decreases from 59.77x10-2 to 23.77x10-2 for Auchlite ARA-9366 resins and from 9.01x10-2 to 4.05x10-2 for Auchlite A-378 resins. The decrease in K values with rise in temperature, indicate exothermic ion exchange reactions having enthalpy values of -47.87 and -39.51 kJ/mol respectively. The high K and low enthalpy values obtained for Auchlite ARA-9366 resins indicate their greater selectivity for the iodide ions in the solution as compared to Auchlite A-378 resins, when both the resins are present in chloride form.

Anion exchange behavior of MIIAl layered double hydroxides: a molecular dynamics and DFT study

2020 ◽  
Vol 22 (35) ◽  
pp. 19758-19768 ◽  
Author(s):  
Xiao-Jie Zhao ◽  
Yu-Quan Zhu ◽  
Si-Min Xu ◽  
Hui-Min Liu ◽  
Pan Yin ◽  
...  
Keyword(s):  
Molecular Dynamics ◽  
Ion Exchange ◽  
Exchange Reaction ◽  
Anion Exchange ◽  
Layered Double Hydroxides ◽  
Dft Study ◽  
Sewage Disposal ◽  
Supramolecular Materials ◽  
Ion Exchange Reaction ◽  
Double Hydroxides

The ion exchange reaction has been extensively used in the field of synthesis of functionalized supramolecular materials such as layered double hydroxides (LDHs), ion-embedded batteries, sewage disposal and so on.

scholarly journals Study on Halide Ions Selectivity of Nuclear Grade Anion Exchange Resin Auchlite ARA-9366

2014 ◽  
Vol 30 ◽  
pp. 67-73
Author(s):  
P.U. Singare ◽  
A.N. Patange
Keyword(s):  
Ion Exchange ◽  
Exchange Reaction ◽  
Anion Exchange ◽  
Exchange Resin ◽  
Anion Exchange Resin ◽  
Equilibrium Constants ◽  
Nuclear Grade ◽  
Exchange Reactions ◽  
Ion Exchange Reaction ◽  
Bromide Ions

The selectivity behaviour of nuclear grade anion exchange resin Auchlite ARA-9366 in chloride form towards iodide and bromide ions in the solution was studied. The trend in selectivity of the resin was predicted on the basis of thermodynamics of Clˉ/Iˉ and Clˉ/Brˉ uni-univalent ion exchange reactions. It was observed that the equilibrium constants K values for Clˉ/Iˉ ion exchange reaction were higher than that calculated for Clˉ/Brˉ exchange under identical experimental conditions. Also the enthalpy values for the two uni-univalent ion exchange reactions were calculated as -47.87 and -36.14 kJ/mol respectively. The high K and low enthalpy values obtained for Clˉ/Iˉ ion exchange reaction as compared to that obtained during Clˉ/Brˉ exchange supports higher selectivity of the resin towards iodide ions as compared to that towards bromide ions, when both the ions are present in the same solution.

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