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Influence of resin selectivity on film diffusion‐controlled ion exchange
Author(s) -
Copeland J. P.,
Henderson C. L.,
Marchello J. M.
Publication year - 1967
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690130312
Subject(s) - selectivity , ion exchange resin , diffusion , nernst equation , range (aeronautics) , ion exchange , thermodynamics , ion , chemistry , inorganic chemistry , materials science , analytical chemistry (journal) , chromatography , physics , organic chemistry , electrode , composite material , catalysis
An analytic solution of the Nernst‐Planck equations is derived which applies to a selective resin when film diffusion controls. The selectivity has a marked effect on the rate of exchange for a wide range of diffusivities. The unit‐selectivity solution of Schlögl and Helfferich is included as a special case of the more general solution.