Ion exchange membrane electrolytic process
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United States of America Patent
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Aug 17, 2010
Grant Date -
Dec 22, 2005
app pub date -
Jun 21, 2005
filing date -
Jun 22, 2004
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Abstract
The invention provides an ion exchange membrane electrolytic process unlikely to undergo any current density drop even when brine having a concentration lower than usual. Electrolysis occurs while the concentration of an aqueous solution of an alkaline metal chloride in an anode chamber partitioned by a cation exchange membrane is set at 2.7 mol/l to 3.3 mol/l, and a gap is provided between the cation exchange membrane and the anode.
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