scholarly journals Ion Exchange Kinetics. A Nonlinear Diffusion Problem

1958 ◽  
Vol 28 (3) ◽  
pp. 418-424 ◽  
Author(s):  
F. Helfferich ◽  
M. S. Plesset
Keyword(s):  
Ion Exchange ◽  
Nonlinear Diffusion ◽  
Diffusion Problem ◽  
Ion Exchange Kinetics ◽  
Exchange Kinetics

Ion exchange kinetics of magnetic alginate ferrogel beads produced by external gelation

2014 ◽  
Vol 111 ◽  
pp. 198-205 ◽  
Author(s):  
Vânea Ferreira Torres Teixeira ◽  
Nádia Rosa Pereira ◽  
Walter Ruggeri Waldman ◽  
Ana Luiza Cassiano Dias Ávila ◽  
Victor Haber Pérez ◽  
...  
Keyword(s):  
Ion Exchange ◽  
External Gelation ◽  
Ion Exchange Kinetics ◽  
Exchange Kinetics ◽  
Kinetics Of

Kinetics of alkali ion exchange of irradiated glasses

2003 ◽  
Vol 792 ◽  
Author(s):  
Michael I. Ojovan ◽  
William E. Lee
Keyword(s):  
Ion Exchange ◽  
External Irradiation ◽  
Glass Temperature ◽  
Ion Exchange Kinetics ◽  
Radiation Induced ◽  
Exchange Kinetics ◽  
Induced Changes ◽  
Kinetics Of ◽  
Alkali Ion

ABSTRACTThe kinetics of alkali ion exchange of irradiated glasses were investigated using the structural energy barrier model for ion exchange of glasses. Derived rates of alkali ion exchange depend both on irradiation dose D(Gy) and dose rate q(Gy/s) illustrating that some effects cannot be simulated by external irradiation and require in-situ measurements. Higher D and q lead to increased ion exchange rates. Significant changes occur in the activation energies demonstrating a 4 – 6 times decrease depending on glass composition. Radiation-induced changes are higher at relatively low temperatures and are diminished by increased glass temperature. Numerical estimations show that changes in alkali ion exchange kinetics occur at D far below damaging doses.

Macroscopic model for multispecies ion-exchange kinetics

1995 ◽  
Vol 28 (1) ◽  
pp. 13-20 ◽  
Author(s):  
Anatoly M. Dolgonosov ◽  
Ruslan Kh. Khamizov ◽  
Anna N. Krachak ◽  
Andrei G. Prudkovsky
Keyword(s):  
Ion Exchange ◽  
Macroscopic Model ◽  
Ion Exchange Kinetics ◽  
Exchange Kinetics

Multi-component ion exchange kinetics with PAN-KCoFC composite ion exchanger

2005 ◽  
Vol 22 (1) ◽  
pp. 127-132 ◽  
Author(s):  
Jei-Kwon Moon ◽  
Eil-Hee Lee ◽  
Yoon-Ju Han ◽  
Byung-Chul Lee ◽  
Hyung-Tae Kim
Keyword(s):  
Ion Exchange ◽  
Ion Exchanger ◽  
Ion Exchange Kinetics ◽  
Exchange Kinetics ◽  
Composite Ion Exchanger
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