Electrodialysis of multivalent metal salts
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United States of America Patent
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Mar 30, 2004
Grant Date -
Dec 19, 2002
app pub date -
May 21, 2002
filing date -
Jun 18, 2001
priority date (Note) -
Expired
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Abstract
A method for electrodialysis is conducted in a multi-compartment, preferably a four compartment, electrodialysis cell configuration wherein an inexpensive source of protons, preferably from a strong inorganic acid enables the conversion of multivalent metal salts into valuable acid products, such as 2-keto-L-gluconic acid, a vitamin C precursor, and useful by-products, like calcium chloride.
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