Production of potassium or sodium stannate

Details Production of potassium or sodium stannate Production of potassium or sodium stannate

C - Chemistry, Metallurgy

25

B

204/59

C25B 1/14 (2006.01)

Patent

CA 1117469

TITLE PRODUCTION OF POTASSIUM OR SODIUM STANNATE ABSTRACT OF THE DISCLOSURE Alkali metal stannates are produced in an electro- chemical process by dissolving a tin anode in an appropriate alkali metal hydroxide in the anode compartment of an electro- dialytic cell. The anode compartment of the electrodialytic cell is separated from a cathode compartment by an anionic or a cationic permselective ion exchange membrane. The tin is dissolved in the anode compartment in the stannous form and after reacting with the alkali metal hydroxide is oxidized to the stannic form to produce the desired alkali metal stannate.

285049

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