SODA ELECTROLYTIC CELL PROVIDED WITH GAS DIFFUSION ELECTRODE

摘要

A soda electrolytic cell provided with a gas diffusion electrode, which can smoothly supply and discharge a catholyte in an electrolytic soda process and allows oxygen gas to come into a close contact with the gas diffusion electrode, the cell comprising an anode room having an anode and being supplied with a solution of salt, a cathode room having a cathode consisting of the above gas diffusion electrode and generating an alkaline solution and an ion exchange membrane partitioning these rooms, wherein an electrolytic soda process is performed so as not produce a pressure difference between the pressure of a cathode room solution and a pressure in a gas room of the gas diffusion electrode. In addition, a recess having the size of the gas diffusion electrode is provided in the center of a nickel thin sheet and a nickel mesh body is inserted into the recess.