GOLD EXTRACTION WITH POLYMERIC COMPOSITES PREPARED BY GAMMA-RADIATION POLYMERIZATION COUPLED WITH IMMOBILIZATION.

S. Belfer, M. Streat

Research output: Contribution to journalConference articlepeer-review

Abstract

We have synthesized a series of new polymeric composite sorbents by gamma-radiation polymerization of vinyl monomers mixed with a liquid or solid extractant on a silica gel base. The high surface area of silica gel enhances the radiation graft polymerization, and immobilization of the organic extractant takes place simultaneously with polymerization. The sorbent consisting of the liquid extractant Alamine 336 immobilized into polydivinylbenzene grafted to the silica was used to study gold sorption from cyanide solutions. The impressive feature of this sorbent was the very fast kinetics of sorption and desorption processes. From dilute solutions (20-50 ppm) about 90% of gold sorption was complete in 1 min.

Original languageEnglish
Pages (from-to)310-311
Number of pages2
JournalReactive and Functional Polymers
Volume7
Issue number2-3
DOIs
StatePublished - 1 Jan 1988
EventSel Pap Presented at the 5th Symp on Ion Exch - Lake Balaton, Hung
Duration: 28 May 198631 May 1986

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