Method of producing sols by electrodialysis

Details Method of producing sols by electrodialysis Method of producing sols by electrodialysis

B - Operations, Transporting

01

D

204/170, 204/98.

B01D 13/02 (1980.01)

Patent

CA 1094503

ABSTRACT OF THE DISCLOSURE A method of producing a sol of an element selected from the group con-sisting of aluminum, antimony, chromium, manganese, molybdenum, tin and tungstencomprising 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 anodecompartment 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 electrodialytic cell for sol formation.

290209

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