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Adsorption of palladium by glycolmethacrylate chelating resins

✍ Scribed by E. Anticó; A. Masana; V. Salvadó; M. Hidalgo; M. Valiente

Book ID
102981192
Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
703 KB
Volume
296
Category
Article
ISSN
0003-2670

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✦ Synopsis

The adsorption of Pd(I1) and Cu(I1) on macroporous hydrophilic glycohnethacrylate gels with side chains containing 8-hydroxyquinoline (Spheron Gxine lOOO), thiol (Spheron Thiol 1000) and salicyl groups (Spheron Salicyl 1000) has been investigated. Palladium is strongly adsorbed by Spheron Gxine and Spheron Thiol resins from a hydrochloric medium. The tiuence of pH and ionic strength has been determined. The elution of Pd(I1) was carried out by using acidified thiourea or potassium thiocyanate solutions. Desorption was most effective for Spheron Gxine resin. The kinetics of metal adsorption by Spheron Gxine 1000 was also studied. -The experimental data were analyzed numerically by considering both the forward and the reverse reaction, and corresponding constants are calculated for different initial metal and resin concentrations. Separation of aqueous mixtures of Pd(I1) and WII) by using Sphenm Gxine is discussed.

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