METHOD FOR PRODUCING AMINOPOLYCARBOXYLIC ACID

摘要

PROBLEM TO BE SOLVED: To provide a method for producing an aminopolycarboxylic acid, by which this biodegradable chelate agent having a higher chelating ability than those of chelating agents. having been proposed can be produced in extremely higher yield and with high purity than by the conventional method for producing ethylenediamine-N,N'-dimalonic acid using malonic acid as a raw material. SOLUTION: This method for producing the aminopolycarboxylic acid is characterized by reacting a halogenated malonic ester with ethylenediamine and then hydrolyzing the reaction product.