Process for the preparation of L-aspartic acid from ammonium asp

Details Process for the preparation of L-aspartic acid from ammonium asp Process for the preparation of L-aspartic acid from ammonium asp

1995-04-17

1996-06-25

Shippen, Michael L.

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

Organic compounds

Carboxylic acids and salts thereof

C07C22900

Patent

active

055301606

ABSTRACT:
Process for the preparation of L-aspartic acid by treatment of ammonium aspartate using an alcoholic (preferably methanolic or ethanolic) fumaric acid solution according to an added fumaric acid/ammonium aspartate present molar ratio of the order of 0.05 to 0.8 and preferably of the order of 0.1 to 0.65, the said alcoholic solution containing of the order of 1 to 15% and preferably of 3 to 10% of its weight of fumaric acid.

REFERENCES:
patent: 3933586 (1976-01-01), Duc
patent: 4560653 (1985-12-01), Sherwin
patent: 4828993 (1989-05-01), Sridhar

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