| CPC C25B 15/023 (2021.01) [C25B 1/245 (2013.01); C25B 9/17 (2021.01); C25B 11/043 (2021.01); C25B 15/08 (2013.01)] | 8 Claims |
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1. A method for producing fluorine gas, the fluorine gas being produced by electrolyzing an electrolyte containing hydrogen fluoride and a metal fluoride, the method comprising:
electrolyzing the electrolyte in an electrolytic cell;
measuring an average particle size of a mist contained in a fluid generated in an inside of the electrolytic cell in the electrolyzing the electrolyte; and
sending the fluid from the inside to an outside of the electrolytic cell through a flow path, wherein
in the sending, the flow path in which the fluid flows is switched in accordance with the average particle size of the mist measured in the measuring an average particle size, such that the fluid is sent to a first flow path that sends the fluid from the inside of the electrolytic cell to a first outside when the average particle size of the mist measured in the measuring an average particle size is not more than a predetermined reference value, or the fluid is sent to a second flow path that sends the fluid from the inside of the electrolytic cell to a second outside when the average particle size is more than the predetermined reference value, and
the predetermined reference value is a numerical value of 0.1 μm or more and 1.0 μm or less.
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