Synthetic inorganic ion-exchange materials. XXXIX. Synthesis of titanium(IV) antimonates and their ion exchange properties for alkali and alkaline earth metal ions

Journal Article · Tue Jan 01 04:00:00 EST 1985 · Solvent Extr. Ion Exch.; (United States)

DOI:https://doi.org/10.1080/07366298508918506· OSTI ID:5384337

Abe, M; Chitrakar, R; Tsuji, M; Fukumoto, K

Titanium antimonate (TiSbA) cation exchanger, prepared under different molar ratios of titanium and antimony, has been characterized by X-ray diffraction, thermal analysis, infrared spectra, and pH-titration. The pH-titration curves showed apparently monobasic acid type. The uptakes of alkali metal ions increased with increasing pH of the solution and with decreasing the molar ratio (Ti/Sb) in the exchanger. An unusual selectivity sequence of the order Na < K < Rb < Li < Cs was found for microamounts of alkali metal ions on TiSbA, while the regular selectivity sequence Mg < Ca < Sr < Ba was found for alkaline earth metal ions in nitric acid media. The maximum separation factors, ..cap alpha../sub Na//sup Li/ (=55) and ..cap alpha../sub Na//sup Cs/ (=186) were found on the TiSbA with Ti/Sb molar ratio of 1.56, respectively. The effective separations of Li from Na and K, Mg from Ca and Sr have been achieved by using a relatively small column (2 cm x 0.5 cm ID) containing TiSbA of Ti/Sb ratio 1.56.

• Research Organization: Tokyo Institute of Technology, Japan
• OSTI ID: 5384337
• Journal Information: Solvent Extr. Ion Exch.; (United States), Journal Name: Solvent Extr. Ion Exch.; (United States) Vol. 3:1-2; ISSN SEIED
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105* -- Separation Procedures
ALKALI METALS
ALKALINE EARTH METALS
CHEMICAL PREPARATION
DATA
ELEMENTS
EXPERIMENTAL DATA
INFORMATION
ION EXCHANGE MATERIALS
MATERIALS
METALS
NUMERICAL DATA
SEPARATION PROCESSES
SYNTHESIS
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS