FIELD: chemistry.
SUBSTANCE: method of neutralisation dialysis demineralization of a mixed solution of an amino acid and a salt comprising feeding a mixture of a phenylalanine solution and sodium chloride to the middle section of a three-sectional dialyzer bounded by membranes of different nature of functional groups with a geometrically non-uniform profiled surface, feeding in countercurrent mode through a cation-exchange membrane adjacent section of the solution phenylalanine, and through a section adjacent to the anion exchange membrane - a solution of sodium chloride.
EFFECT: method of selective extraction of electrolyte ions from a mixed solution with phenylalanine by stationary neutralisation dialysis with profiled ion-exchange membranes of different nature of functional groups.
3 dwg
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