ABSTRACT
The extraction of inorganic salts from neutral aqueous solutions by a mixture of liquid anion and cation exchangers dissolved in an organic diluent was first described by Grinstead et al. [1]. The extraction can be formally expressed by the equilibrium equation: () R 3 N ¯ + R ′ COOH ¯ + MY ⇌ R 3 NH + Y - ¯ + R ′ COOM ¯ https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9781003210306/772dfc98-5b19-4114-a79e-c8648e7ba0db/content/eq1.tif"/>
