Procedure of liquid-liquid extraction of the berilio from its aqueous sulfuric solutions. (Machine-translation by Google Translate, not legally binding)

摘要

Liquid-liquid extraction procedure of beryllium from its aqueous sulfuric solutions, characterized in that the anionic sulfuric complexes of beryllium present in an aqueous phase are extracted in an organic liquid phase immiscible in water, thanks to an intimate mixture of said phases followed by decanting, the organic phase being constituted by one or more organic bodies carrying a primary nitrogen in a carbon chain of the general formula: ** (See formula) ** where R and R 'are either hydrogen or a carbon radical, with the two substituents R and R' being chosen in such a way as to give the anion exchanger a total molecular weight sufficient for its basic free form and their various salts are insoluble or poorly soluble in water, said organic bodies being in solution in an organic solvent immiscible in water, said aqueous phase being constituted by a sulfuric solution of beryllium whose acidity is brought to a pH that varies from 0 at 5.5 and in a preferred manner from 1 to 5. (Machine-translation by Google Translate, not legally binding)