Method and device for the simultaneous production of acid and base of high purity
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United States of America Patent
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Sep 3, 2002
Grant Date -
Aug 16, 2001
app pub date -
Feb 5, 2001
filing date -
Feb 4, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An electrodialytic method and device for the simultaneous production of acids and bases of high purity and higher concentration operates by splitting corresponding salts in aqueous solution using an electrolysis cell. The electrolysis cell includes a cathode chamber in which an alkali is formed, a salt chamber for supplying a salt to be split, an acid chamber in which the acid is formed, and an anode chamber through which a mineral acid flows as a proton carrier. The anode is a hydrogen-consuming electrode. The method and device are preferably used in the production of hydrochloric acid and sodium hydroxide solution.
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