Process for separating leucine, isoleucine and valine

Details Process for separating leucine, isoleucine and valine Process for separating leucine, isoleucine and valine

1980-07-15

1981-04-21

Trousof, Natalie

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

Organic compounds

Carboxylic acids and salts thereof

C07C 9912

Patent

active

042634504

ABSTRACT:
A solution of leucine, isoleucine and valine is concentrated at a pH-value of from 1.5 to 2.0 to produce a mother liquor enriched with isoleucine and valine and a solid phase enriched with leucine. Concentrated hydrochloric acid is added to the mother liquor enriched with isoleucine and valine and, after concentration, a mother liquor enriched with valine and leucine and a solid phase enriched with isoleucine are obtained.

REFERENCES:
patent: 2471053 (1946-02-01), Almquist
patent: 3433832 (1969-03-01), Swanson
Tsuchiya, Chem. Abst., 48:11,737b, (1953).
Vobayashi, Chem. Abst., 61:12084g, (1964).
Hamaguchi, Chem. Abst., 81:169839p, (1974).

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