Separation of Titanium from Rare Earths, Beryllium, Niobium, Iron, Aluminum, Thorium, Magnesium, Manganese, and Other Elements by Cation Exchange Chromatography.
A systematic study of the absorbabilities of cations with AG 50W-X8 resin in H₂SO₄ indicated that the difference in the equilibrium distribution coefficients of Ti(IV) and a considerable number of other ions is large enough for a good separation. This fact was applied to develop a cation exchange chromatographic procedure for the separation of Ti from Fe(III), Al(III), Be(II), Sc(III), Y(III), La(III), Th(IV), Mg(II), Mn(II), Co(II), Cu (II), Ni(II), Zn(II), and Cd(II). Titanium is eluted with 1N H₂SO₄ containing 1% of H₂O₂ as stabilizing agent to suppress hydrolysis, while the other ions stuy on the column. Ions such as Ga(III), Fe(II), Hg(II), Rg(I), Tl(I), Ag(I), and Cs(I) remain on the column as well. Nb(V), V(V), Mo(VI), Ta(V), and W(VI) can be eluted from the column with 0.5N H₂SO₄ containing 1% H₂O₂ before the separation of Ti from the more strongly absorbed elements is started. Ta(V) and W(VI), however, tend to interfere by hydrolysis. Zr(IV) and U(VI) accompany Ti. The separations are satisfactory when up to 5 xneq of Be or 10 meq of the other ions are present with Ti. (P.C.H.)
- Research Organization:
- South African Council for Scientific and Industrial Research, Pretoria
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-17-032054
- OSTI ID:
- 4672709
- Journal Information:
- Analytical Chemistry, Journal Name: Analytical Chemistry Journal Issue: 9 Vol. 35; ISSN 0003-2700
- Publisher:
- American Chemical Society (ACS)
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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Related Subjects
BERYLLIUM COMPOUNDS
CATIONS
CESIUM COMPOUNDS
CHEMISTRY
CHROMATOGRAPHY
DISTRIBUTION
GALLIUM COMPOUNDS
HYDROGEN PEROXIDES
ION EXCHANGE
IRON COMPOUNDS
LANTHANUM COMPOUNDS
MERCURY COMPOUNDS
MOLYBDENUM COMPOUNDS
NIOBIUM COMPOUNDS
NUMERICALS
RESINS
SCANDIUM COMPOUNDS
SILVER COMPOUNDS
SULFURIC ACID
TANTALUM COMPOUNDS
THALLIUM COMPOUNDS
THORIUM COMPOUNDS
TITANIUM COMPOUNDS
TUNGSTEN COMPOUNDS
URANIUM COMPOUNDS
VANADIUM COMPOUNDS
YTTRIUM COMPOUNDS
ZIRCONIUM COMPOUNDS