Electrolytic process for the manufacture of alkali metal halate

Details Electrolytic process for the manufacture of alkali metal halate Electrolytic process for the manufacture of alkali metal halate

1981-12-27

1983-12-27

Tung, T.

Chemistry: electrical and wave energy

Processes and products

204237, C25B 124

Patent

active

044229097

ABSTRACT:
An electrolytic apparatus for the production of an alkali metal halate, such as sodium chlorate, from an aqueous solution of alkali metal halide, such as sodium chloride, includes vertical anodes and cathodes in alternating relationship in a housing, and an upwardly oriented flow directing funneling chimney structure in the housing and over the electrodes, through which, electrolyte between the electrodes rises, passing from a wider portion of the funnel to a narrower part thereof, and a connected chimney passageway, from which it is returned for recirculation to a location below the electrodes after removal of gas from it. Different structures of the electrolytic apparatus or cell are specifically disclosed, in one of which the electrolyte, after having passed through the funnel structure, moves longitudinally with respect to the cell, and in the other of which it moves transversely. Also disclosed are apparatuses of the types mentioned which include a plurality of the described funnel devices. Methods for the manufacture of alkali metal chlorate by utilization of such apparatuses are also described. Additionally, several improvements in electrodes structures, joinders of electrodes to conductors, spacings of electrodes and sealings of electrodes, conductors and cell parts are illustrated.

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