METHOD FOR PREVENTING CORROSION OF ALKALI CHLORIDE ELECTROLYTIC CELL

Japanese Patent JPS59170280

A

PURPOSE:To prevent perfectly the corrosion of an alkali chloride electrolytic cell by placing an auxiliary electrode in a pipe for feeding a catholyte, a pipe for drawing a soln. produced in a cathode chamber or a common path in the electrolytic cell and by making the voltage of the auxiliary electrode higher than the anode voltage by >=0.1V. CONSTITUTION:A plurality of unit metallic electrolytic cells are electrically connected in series to install a double electrode type electrolytic cell 1. Auxiliary electrodes 6 are placed in one or more parts selected among pipes 2 for feeding a catholyte, pipes 3 for drawing a soln. produced in cathode chambers, and common paths 4, 5 in the cell 1. Voltage to be applied to the electrodes 6 is made higher than the voltage of the anode terminal of the cell 1 by >=0.1V. Thus, the corrosion of the electrolytic cell can be perfectly prevented.

WO/2004/024990	CONTROLLED CONCENTRATION ELECTROLYSIS SYSTEM
WO/2005/081356	PROCESS FOR RECOVERY OF THE SILICA PRESENT IN THE SEPARATORS BETWEEN THE ELEMENTS OF LEAD-ACID BATTERIES

SAKAKI TAKASHI
SUGIMORI MASATOSHI
IHARA YOSHINAO

JP4155083A

September 26, 1984

March 15, 1983

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TOYO SODA MFG CO LTD

C25B15/00; C25B1/46; C25B9/19; C25B13/08; (IPC1-7): C25B9/00

JPS5426229A

1979-02-27

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