Uptake of metal ions by a new chelating ion-exchange resin. Part 4. Kinetics
The rate of uptake of several actinide ions [Am(III), U(VI), Th(IV), Np(IV) and Pu(IV)] and of some transition-metal ions [Co(II), Zn(II), Fe(III) and Cr(III)] at tracer concentration level, from solutions of various compositions, by the new chelating ion-exchange resin, Diphonix, has been investigated. Diphonix is a polyfunctional resin containing sulfonic and gem-diphosphonic acid groups chemically bonded in a styrene-divinylbenzene polymeric network. It binds actinide and other ions through the formation of chelate complexes with the phosphoryl groups of the gem-diphosphonic acids. The experiments discussed in this work have allowed us to establish the paramount importance of the presence of the sulfonic groups in obtaining practically useful rates of metal ions uptake. Comparison of the kinetic behavior of Diphonix with that of commercial sulfonic-type resins has shown that Diphonix reacts with the investigated ions as rapidly as do the other resins. Conditions for efficient and rapid stripping of all the investigated cations, including Cr(III), have been found. 20 refs., 9 figs.
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 5147899
- Journal Information:
- Solvent Extraction and Ion Exchange; (United States), Journal Name: Solvent Extraction and Ion Exchange; (United States) Vol. 12:1; ISSN 0736-6299; ISSN SEIEDB
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400105* -- Separation Procedures
400702 -- Radiochemistry & Nuclear Chemistry-- Properties of Radioactive Materials
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
ACTINIDE COMPOUNDS
CATIONS
CHARGED PARTICLES
CHELATING AGENTS
CHEMICAL REACTIONS
DISPERSIONS
HYDROGEN COMPOUNDS
INORGANIC ACIDS
ION EXCHANGE MATERIALS
IONS
KINETICS
MATERIALS
MATHEMATICAL MODELS
MIXTURES
NITRIC ACID
REACTION KINETICS
SOLUTIONS
TRANSITION ELEMENT COMPOUNDS