Method of stabilizing metal-silica complexes in alkali metal hal

Details Method of stabilizing metal-silica complexes in alkali metal hal Method of stabilizing metal-silica complexes in alkali metal hal

1983-10-24

1985-05-07

Andrews, R. L.

Chemistry: electrical and wave energy

Processes and products

204128, C25B 146

Patent

active

045156654

ABSTRACT:
A method for stabilizing metal-silica, particularly aluminum-silica colloidal complexes in an alkali metal halide, particularly sodium chloride, brine used as an anolyte feedstock for membrane electrolytic cells. Such stabilization is achieved by modifying the startup procedure of the cell so as to promote a sufficient level of hydroxyl ion backmigration during electrolysis so as to keep the pH of said brine at a value about 3.5.

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