Method for purifying aspartic acid

Details Method for purifying aspartic acid Method for purifying aspartic acid

1988-03-11

1990-05-01

Shippen, Michael L.

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

Organic compounds

Carboxylic acids and salts thereof

C07C 9912

Patent

active

049220110

ABSTRACT:
A method for purifying aspartic acid comprising suspending aspartic acid crystals containing chloride ion impurities in an aqueous solution at a temperature of 50.degree. C. or higher, followed by separating the purified aspartic acid crystals, is disclosed.

REFERENCES:
patent: 3565950 (1971-02-01), Ito et al.
patent: 3644514 (1972-02-01), Bornengo et al.
Greenstein, Winitz, "Aspartic Acid and Asparagine", Chemistry of the Amino Acids 3 (John Wiley, New York, 1961), pp. 1856-1878.
The Merck Index, (1983), 10th Ed., An Encyclopedia of Chemicals, Drugs and Biologicals, p. 844.

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