Purified, strontium-free barium values

Details Purified, strontium-free barium values Purified, strontium-free barium values

1988-04-28

1989-04-04

Doll, John

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Alkaline earth metal

423165, B01D 1104

Patent

active

048185043

ABSTRACT:
Barium compounds containing contaminating amounts of strontium, e.g., barium salts, are effectively purified, notably into barium values suitable for conversion into specialty grade barium carbonate and titanate, by intimately contacting and liquid/liquid extracting aqueous solutions thereof with an organic solvent phase comprising at least one essentially water insoluble --CH.sub.2 --R' substituted 8-hydroxy-quinoline extractant.

REFERENCES:
patent: 3637711 (1972-01-01), Budde et al.
patent: 3694369 (1972-09-01), Orlandini
Ritcey et al, "Some Aspects of the Extraction of Metal from Acidic Solutions by Kelex 100," CIM Bulletin (Feb. 1974), pp. 87-92.
A. W. Ashbrook, "Commercial Chelating Solvent Extraction Reagents, II, Purification and Properties of B-Alkenyl-8-Hydroxyquinoline," Journal of Chromatography, 105 (1975) pp. 151-156.

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