Abstract
Equilibrium isotherms for adsorption of ten representative amines including ammonia on two different H +-form ion exchangers have been determined in order to assess the possibility of using such a system to recover amines from industrial waste-water. The selectivity was ver high. Equilibria for the C 0C 4 amines were correlated by an equation derived according to the mass action law while the isotherms for the C 6C 12 species were of Freundlich form. Intraparticle diffusivities for linear and non-linear amines were measured and the effects of the molecular weight and molecular shape on the diffusivity are discussed. A simple empirical equation correlating diffusivity with the maximum molecular chain length is suggested.
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