C - Chemistry – Metallurgy – 25 – B
Patent
C - Chemistry, Metallurgy
25
B
204/159
C25B 9/00 (2006.01) C25B 9/20 (2006.01)
Patent
CA 1107685
ABSTRACT OF THE DISCLOSURE A monopolar filter press electrolytic cell for use in the electrolysis of alkali metal halide brine to produce cell liquor, halogen and hydrogen the cell comprising a plurality of anode plates and cathode plates and a hyd- raulically permeable diaphragm positioned between each adjacent anode plate and cathode plate, and comprising at least one spacing plate of a non-conducting material positioned between each anode plate and adjacent diaphragm and between each cathode plate and adjacent diaphragm, the anode plates, cathode plates and spacing plates being provided with at least two openings in the faces of the plates which in com- bination define a first compartment lengthwise of the cell separated from the second compartment, the spacing plates between the anode and adjacent diapharagm being provided with at least one passage which permits brine to pass between the first compartment and the anolyte compartments and which permits halogen to be released from the anolyte compartments to the first compartment, and the spacing plates between the cathodes and adjacent diaphragms being provided with at least onepassage which permits cell liquor and hydrogen to pass from the catholyte compartments to the second compartment, the anode plates and cathodes plastes being made in part of a non- conducting material so that the first and second compartments are electrically insulated from one another.
298174
Boulton Thomas W.
Darwent Brian J.
Drouin Guy
Imperial Chemical Industries Limited
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