Method of separately collecting optically active amino acid...

Details Method of separately collecting optically active amino acid... Method of separately collecting optically active amino acid...

2005-04-22

2008-07-22

Zucker, Paul A (Department: 1621)

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

Organic compounds

Carboxylic acids and salts thereof

C564S198000

Reexamination Certificate

active

07402695

ABSTRACT:
A method for separately collecting an optically active amino acid amide and an optically active amino acid from an aqueous solution containing same, together with at least one member selected from the group consisting of an acid, a base, and a salt, includes a step of neutralizing an acid or base in the aqueous solution, a desalting step of removing a salt contained in the aqueous solution and/or formed in the neutralization step, and a step of separately collecting the optically active amino acid amide/amino acid separately from the desalted aqueous solution by a process which takes advantage of a difference in solubility between the two components in an organic solvent. The desalting step is preferably performed by electrodialysis, optionally with ammonia added to the aqueous solution. The optically active amino acid amide/amino acid can be separately collected with high efficiency using an organic solvent.

REFERENCES:
patent: 4605477 (1986-08-01), Doya et al.
patent: 2003/0171597 (2003-09-01), Katoh et al.
patent: 1300392 (2003-04-01), None
patent: 2001-011034 (2001-01-01), None
patent: 2001-328970 (2001-11-01), None
patent: 2001-328970 (2001-11-01), None
patent: 2002-37781 (2002-02-01), None
patent: 2002-241315 (2002-08-01), None
patent: 2002-253294 (2002-09-01), None

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