Elution of ion exchange resins by use of ultrasonication

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dc.contributor.authorFeng D.
dc.contributor.authorAldrich C.
dc.date.accessioned2011-05-15T16:01:41Z
dc.date.available2011-05-15T16:01:41Z
dc.date.issued2000
dc.description.abstractThe feasibility of using ultrasound to enhance the elution of three ion exchange resins was investigated. A laboratory-scale elution column immersed in an ultrasonic bath was used to investigate three elution systems. XAD7-Au (eluted with NaOH, at a pH of 10), IR120H-Cd (eluted with HCl) and A375-SO42- (eluted with saturated lime solutions). The physico-chemical stability of the resins was not affected adversely by sonication, with the exception of the XAD7 resin, which showed very slight degradation after prolonged exposure. Ultrasonic radiation improved the elution recoveries and kinetics considerably. This could possibly be attributed to an increase in counter-ion diffusive transport caused by acoustic vortex microstreaming, as well as the prevention of precipitation that can lead to the blockage of ion exchange sites.
dc.description.versionArticle
dc.identifier.citationHydrometallurgy
dc.identifier.citation55
dc.identifier.citation2
dc.identifier.issn0304386X
dc.identifier.other10.1016/S0304-386X(99)00087-0
dc.identifier.urihttp://hdl.handle.net/10019.1/12103
dc.subjectCadmium compounds
dc.subjectCaustic soda
dc.subjectGold compounds
dc.subjectHydrochloric acid
dc.subjectIon exchange resins
dc.subjectLime
dc.subjectpH effects
dc.subjectPrecipitation (chemical)
dc.subjectSulfur compounds
dc.subjectUltrasonic applications
dc.subjectSulfates
dc.subjectHydrometallurgy
dc.titleElution of ion exchange resins by use of ultrasonication
dc.typeArticle
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