Method for separating a basic amino acid

Details Method for separating a basic amino acid Method for separating a basic amino acid

1986-09-09

1987-09-01

Shippen, Michael L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acids and salts thereof

C07C 9912

Patent

active

046910549

ABSTRACT:
A method for separating a basic amino acid from a liquor containing the same, which entails (a) contacting the basic amino containing liquor with a strongly acidic cation exchange resin at a pH at which the basic amino acid exists in the form of a divalent cation, thereby adsorbing at least a part of the basic amino acid in the form of the divalent cation; (b) contacting said ion exchange resin with a liquor containing said basic amino acid and a neutral amino acid or an acidic amino acid at a pH at which the basic amino acid exists in the form of a monovalent cation; (c) passing an eluant through said ion exchange resin, thereby eluting the basic amino acid from the ion exchange resin; and (d) separating and recovering the basic amino acid from the eluate.

REFERENCES:
patent: 2462597 (1949-02-01), Block
patent: 3505399 (1970-04-01), Samejima
patent: 3686118 (1972-08-01), Benson

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