C - Chemistry – Metallurgy – 25 – B
Patent
C - Chemistry, Metallurgy
25
B
324/23
C25B 15/00 (2006.01) C25B 1/16 (2006.01)
Patent
CA 1300224
METHOD FOR DETECTING DEFECTIVE ION EXCHANGE MEMBRANES IN MONOPOLAR AND BIPOLAR ELECTROLYZERS Abstract The present invention discloses a method for identi- fying defective ion exchange membranes installed in monopolar and/or bipolar electrolyzers for chlor-alkali production. The method of the present invention comprises reduc- ing the electric load of the electrolyzer down to 2-10% of the nominal load and under these reduced load conditions, a measurement of the single electric current load absorbed by each elementary cell in a monopolar electrolyzer is effected as well as the measurement of the single electric voltage of the elementary cell in the case of bipolar electrolyzers. The method further comprises calculating the deviations of the single current or voltages with respect to average values. All membranes which present values comprised between a determined threshold value are considered as suitable for operation.
584892
Gusmini Carlo
Mojana Corrado
Traini Carlo
Macrae & Co.
Uhdenora Technologies S.r.l.
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