Chelate sorbents for concentration and separation of noble metals

✍ Scribed by S.B. Savvin; I.I. Antokolskaja; G.V. Myasoedova; L.I. Bolshakova; O.P. Shvoeva

• Book ID: 104146007
• Publisher: Elsevier Science
• Year: 1974
• Tongue: English
• Weight: 324 KB
• Volume: 102
• Category: Article
• ISSN: 1873-3778
• DOI: 10.1016/s0021-9673(01)85459-5

✦ Synopsis

Chelate sorbents based on aminopolystyrene and chloromethylated and amino derivatives of styrene-divinylbenzene copolymers have been synthesized. The sorbents are of interest for the selective concentration of platinum-group elements. The sorption of the microgram amounts of Pd, Pt, Rh, Ir and Au has been investigated. The sorption of chloro-containing complexes of Pd(II), Pt(II), Pt(IV), Rh(II1) and Ir(II1) on sorbents with 8-aminoquinoline groups was studied. The difference in sorption may be explained by the formation of strong cyclic complexes of Pd and Pt with &elate groups of the resin. The sorbent can be used for the separation of milligram amounts of Pd, Pt and Au from microgram amounts of Rh and Ir and also for the selective concentration of Pd. Pt and Au from strongly acidic solutions containing large amounts of Cu, Fe, Ni and Co.