Method of producing sols by electrodialysis
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United States of America Patent
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May 20, 1980
Issued Date -
N/A
app pub date -
Jan 24, 1979
filing date -
Mar 22, 1976
priority date (Note) -
Expired
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Abstract
A method of producing a sol of an element selected from the group consisting silicon, aluminum, antimony, chromium, manganese, molybdenum, tin and tungsten comprising electrodialytically transferring alkali metal cations of an aqueous solution of a water soluble alkali metal salt of the oxide of the said element from an anode compartment of an electrolytic cell to a cathode compartment of the electrolytic cell while essentially preventing the migration of the metal oxide into the cathode compartment by positioning a cation permselective membrane between the anode compartment and the cathode compartment while carefully and continuously controlling the pH of the solution and removing the so-produced sol from the anode compartment of the electrolytic cell as well as a novel electrodiayltic cell for sol formation.
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