KINETIC MECHANISMS IN ION-EXCHANGE PROCESSES

• Type: Article in International Scientific Journal
• Date: 1995

Authors

FERNANDEZ, A (Author) Other; DIAZ, M (Author) Other; Alírio Rodrigues (Author) FEUP

Journal

Title: Chemical Engineering Journal and the Biochemical Engineering Journal

Vol. 57 No. 2

Pages: 17-25

ISSN: 0923-0467

Publisher: Elsevier B.V.

Indexing

ISI Web of Knowledge - 14 Citations

ISI Web of Science

Scopus - 15 Citations

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Other information

Authenticus ID: P-001-H6Y

DOI: 10.1016/0923-0467(94)02865-8

Abstract (EN): The kinetic mechanisms for cationic and chelating ion exchange were investigated. The applicability of kinetic equations to fit experimental results was demonstrated using the pore diffusion and unreacted core models and two different experimental systems: K+ -Na+ in sulphonic resins and metal-Na+ in iminodiacetic chelating resins. Microscopic observations of intraparticle profiles in the case of metal-Na+ exchange show that the unreacted-core model is adequate for describing such a process, allowing the calculation of intraparticle diffusivities.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 9