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Comparison of experimental and theoretical rates of ion exchange

✍ Scribed by Stephen C. Duffy; Lovat V.C. Rees

Publisher: Elsevier Science
Year: 1974
Tongue: English
Weight: 283 KB
Volume: 102
Category: Article
ISSN: 1873-3778
DOI: 10.1016/s0021-9673(01)85441-8

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✦ Synopsis

The theoretical rates of the forward and backward ion-exchange reactions K+ + Na+-chabazite s Na+ + K+-chabazite have been calculated. In these calculations the concentration dependencies of O&, and Dg, the respective self-diffusion coefficients of sodium and potassium in (Na,K)chabazites, have been taken into account. When these theoretical rates are compared with rates determined experimentally for these two reactions, the introduction of concentration-dependent self-diffusion coefficients has been shown to be of prime importance.

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