Premium
Kinetics of metal ion exchange in iminodiacetic resins at low concentrations
Author(s) -
Fernández A.,
Suárez C.,
Díaz M.
Publication year - 1993
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/jctb.280580308
Subject(s) - iminodiacetic acid , metal , ternary operation , kinetics , thermal diffusivity , ion exchange , chemistry , ion exchange resin , inorganic chemistry , chelation , metal ions in aqueous solution , thermodynamics , ion , organic chemistry , programming language , physics , quantum mechanics , computer science
The kinetics of metal exchange processes with iminodiacetic chelating resin, which occurs with metal concentration change, has been studied. Mechanisms of rate control were analyzed, and diffusivities determined from experiments in batch solutions with decreasing metal concentrations, following the unreacted core model. Metal exchange in binary and ternary systems are analyzed and diffusivity variations of these systems discussed in terms of reaction fronts. The influence of temperature was also studied and energies of activation determined.