Process for production of amino acid hydrochloride and caustic v

Details Process for production of amino acid hydrochloride and caustic v Process for production of amino acid hydrochloride and caustic v

1998-12-30

2000-08-29

Phasge, Arun S.

Chemistry: electrical and wave energy

Processes and products

Electrophoresis or electro-osmosis processes and electrolyte...

204530, 204531, 204534, 204537, 204538, 204540, 204541, B01D 6144

Patent

active

06110342&

ABSTRACT:
The invention uses a stack of three compartment electrodialysis cells in a process for the production amino acid hydrochloride and an alkali. The electrodialysis cell contains bipolar, cation and anion membranes which are arranged to form acid, base and salt compartments. The process begins with supplying a salt solution to the salt compartment, water to the base compartment, and a liquid comprising an amino acid to the acid compartment. Preferably, the feed salt is sodium chloride or potassium chloride or lithium chloride. A direct current driving force is applied across the cell to convert the salt solution to an alkali in the base compartments and an amino acid hydrochloride in the acid compartment. The acid and alkali solutions and a depleted salt solution are withdrawn from their respective compartments. A chelating agent may be added to the salt solution before it is fed into the electrodialysis cell.

REFERENCES:
patent: 5049250 (1991-09-01), Chlanda

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