✦ LIBER ✦

Adsorption of amines and ammonia on H+-form ion exchanger

✍ Scribed by Hiroyuki Yoshida; Takeshi Kataoka

Publisher: Elsevier Science
Year: 1987
Tongue: English
Weight: 878 KB
Volume: 42
Category: Article
ISSN: 0009-2509
DOI: 10.1016/0009-2509(87)80185-9

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✦ Synopsis

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 very high. Equilibria for the C,-C, amines were correlated by an equation derived according to the mass action law while the isotherms for the C&Z,, 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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