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Application of the shrinking core model to the kinetics of extraction of gold(I), silver(I) and nickel(II) cyanide complexes by novel anion exchange resins
journal contribution
posted on 2023-05-16, 12:08 authored by Gregory Dicinoski, Gahan, LR, Lawson, PJ, Rideout, JAThis paper describes an investigation of the kinetics of loading of gold(I), silver(I), and nickel(II) cyanide complexes onto two novel anion exchange resins with high selectivity for the linear dicyanoaurate(I) and dicyanoargentate(I) complexes. The kinetic data fit well to a shrinking core theoretical model, and indicate that in all three complexes, the loading is controlled by the rate of diffusion of the ions penetrating the reacted layer. Diffusion coefficients were determined and those of Au(I) and Ag(I) cyano complexes are similar to one another but much higher (30 to 60 times) those of the Ni(II) cyano complex on these two resins.
History
Publication title
HydrometallurgyVolume
56Pagination
323-336ISSN
0304-386XDepartment/School
School of Natural SciencesPublisher
ElsevierPlace of publication
New YorkRepository Status
- Restricted