Purified, strontium-free barium values

摘要

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 -CH2-R' substituted 8-hydroxy-quinoline extractant.