Uptake of metal ions by a new chelating ion-exchange resin. VII. Alkaline earth cations

Journal Article · Wed Nov 01 04:00:00 EST 1995 · Solvent Extraction and Ion Exchange

DOI:https://doi.org/10.1080/07366299508918318· OSTI ID:136272

Chiarizia, R; Ferraro, J R; D`arcy, K A; Horwitz, E P ^[1]

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1. Argonne National Lab., IL (United States)

The comparison among the uptake of alkaline earth cations from dilute acidic solutions by the Diphonix{sup TM} resin, asilica based Diphonix-like resin, and a sulfonic type strong acid type ion exchange resin has shown that the alkaline earth cations at tracer level concentration are retained by the Diphonix resin because they are bound mainly to the diphosphonic acid groups of the resin. Consequently, a dual-mechanism of access and recognition can be assumed to be operative in the uptake of the Group IIa cations by the Diphonix resin. A similar conclusion had been previously reached for the uptake of actinide ions based on the shape of their acid dependencies. Infrared spectra of the Diphonix resin and some of its metal salts have shown that the alkaline earth cations are bound to the diphosphonic acid groups through highly ionic interactions. 16 refs., 3 figs., 5 tabs.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 136272
• Journal Information: Solvent Extraction and Ion Exchange, Journal Name: Solvent Extraction and Ion Exchange Journal Issue: 6 Vol. 13; ISSN 0736-6299; ISSN SEIEDB
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
40 CHEMISTRY
ALKALINE EARTH METALS
CATIONS
CHELATING AGENTS
INFRARED SPECTRA
ION EXCHANGE
ION EXCHANGE MATERIALS
PHOSPHONIC ACIDS
RESINS
SALTS
SULFONIC ACIDS