Uptake of copper and cobalt in a complexing resin: Shrinking-core model with two reaction fronts

• Type: Article in International Scientific Journal
• Date: 1998

Authors

Arevalo, E (Author) Other; Rendueles, M (Author) Other; Fernandez, A (Author) Other; Alírio Rodrigues (Author) FEUP; Diaz, M (Author) Other

Journal

Title: Separation and Purification Technology

Vol. 13 No. 3

Pages: 37-46

ISSN: 1383-5866

Publisher: Elsevier

Indexing

ISI Web of Science

Scopus - 20 Citations

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Other information

Authenticus ID: P-007-8AX

DOI: 10.1016/s1383-5866(97)00054-3

Abstract (EN): The kinetics of simultaneous ion exchange of copper and cobalt with iminodiacetic chelating resins has been studied. Microscopic studies of the ion-exchange process clearly show two different reaction fronts allowing the use of shrinking-core type models. The influence of system parameters is studied both theoretically and experimentally. Experimental results obtained at different total ion concentrations for various copper-cobalt ratios and particle diameters are reasonably predicted by the shrinking-core model, allowing diffusivity calculations.The kinetics of simultaneous ion exchange of copper and cobalt with iminodiacetic chelating resins has been studied. Microscopic studies of the ion-exchange process clearly show two different reaction fronts allowing the use of shrinking-core type models. The influence of system parameters is studied both theoretically and experimentally. Experimental results obtained at different total ion concentrations for various copper-cobalt ratios and particle diameters are reasonably predicted by the shrinking-core model, allowing diffusivity calculations.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 10