Chelating ion exchange with macroreticular hydroxamic acid resins

Technical Report · Tue Jan 01 04:00:00 EST 1980

DOI:https://doi.org/10.2172/5155612· OSTI ID:5155612

Phillips, R J

The synthesis, reactions, and analytical applications of hydroxamic acids, including chelating resins with this functional group, are reviewed. A procedure for attaching N-phenyl hydroxamic acid groups to Amberlite XAD-4 is described. The extraction of 20 metal ions from 2 M hydrochloric acid by this resin is discussed. Conditions for the quantitative extraction and back-extraction of 9 ions are reported. Results are compared with work on solvent extraction with N-phenylbenzohydroxamic acid. Procedures for attaching N-methyl and N-unsubstituted hydroxamic acid groups to Amberlite XAD-4 are described. The N-phenyl, N-methyl, and N-unsubstituted hydroxamic acid resins are compared with respect to metal-ion complexation. The scope of applications for hydroxamic acid resins is investigated by studying the extraction of 19 metal ions as a function of pH. The resins are especially suitable for the extraction of zirconium(IV), titanium(IV), and uranium(IV) from strongly acidic solution. Aluminum(III) is separated from calcium and phosphate by extraction at pH 4. The use of the resins for the purification of reagents, concentration of trace constituents, and chromatographic separation is demonstrated.

• Research Organization: Ames Lab., IA (USA)
• DOE Contract Number: W-7405-ENG-82
• OSTI ID: 5155612
• Report Number(s): IS-T-910
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105* -- Separation Procedures
AMINES
AQUEOUS SOLUTIONS
CATIONS
CHARGED PARTICLES
CHROMATOGRAPHY
DISPERSIONS
HYDROCHLORIC ACID
HYDROGEN COMPOUNDS
HYDROXAMIC ACIDS
HYDROXY COMPOUNDS
INORGANIC ACIDS
ION EXCHANGE
ION EXCHANGE CHROMATOGRAPHY
IONS
MIXTURES
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PETROCHEMICALS
PETROLEUM PRODUCTS
PH VALUE
POLYMERS
RESINS
SEPARATION PROCESSES
SOLUTIONS
SORPTIVE PROPERTIES
SURFACE PROPERTIES
SYNTHESIS
USES