US 12,188,135 B2
Fluorine gas production device
Yohsuke Fukuchi, Tokyo (JP); Nozomi Kusumoto, Tokyo (JP); and Hiroshi Kobayashi, Tokyo (JP)
Assigned to Resonac Corporation, Tokyo (JP)
Appl. No. 17/279,670
Filed by SHOWA DENKO K.K., Tokyo (JP)
PCT Filed Oct. 7, 2019, PCT No. PCT/JP2019/039545
§ 371(c)(1), (2) Date Mar. 25, 2021,
PCT Pub. No. WO2020/085066, PCT Pub. Date Apr. 30, 2020.
Claims priority of application No. 2018-200220 (JP), filed on Oct. 24, 2018.
Prior Publication US 2021/0395901 A1, Dec. 23, 2021
Int. Cl. C25B 1/245 (2021.01); C25B 9/19 (2021.01); C25B 9/65 (2021.01); C25B 9/67 (2021.01); C25B 11/02 (2021.01); C25B 11/046 (2021.01); C25B 13/00 (2006.01)
CPC C25B 1/245 (2013.01) [C25B 9/19 (2021.01); C25B 9/65 (2021.01); C25B 9/67 (2021.01); C25B 11/02 (2013.01); C25B 11/046 (2021.01); C25B 13/00 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A fluorine gas production device electrolyzing an electrolytic solution containing hydrogen fluoride to electrolytically synthesize fluorine gas comprising:
an electrolytic cell configured to store the electrolytic solution;
a cylindrical partition wall configured to extend downward in a vertical direction from a ceiling surface inside the electrolytic cell to partition an inside of the electrolytic cell into an anode chamber and a cathode chamber;
an anode configured to be disposed in the anode chamber;
a cathode configured to be disposed facing the anode; and
a cathode connection member configured to supply power to the cathode,
wherein
a lower end of the partition wall is immersed in the electrolytic solution,
a length in the vertical direction of a portion immersed in the electrolytic solution of the partition wall is 10% or more and 30% or less of a distance from a bottom surface inside the electrolytic cell to a liquid level of the electrolytic solution,
the cathode is completely immersed in the electrolytic solution,
an upper end of the cathode is arranged at a same position in the vertical direction as a position of the lower end of the partition wall or at a lower position in the vertical direction relative to the lower end of the partition wall,
the anode is placed to be partially exposed from the liquid level of the electrolytic solution,
the cathode connection member has one end physically connected to a bottom wall or a portion at a lower position in the vertical direction relative to the lower end of the partition wall of a side wall of the electrolytic cell and another end connected to the cathode,
the cathode connection member is a pipe used for cooling,
a portion of the cathode facing the anode is constituted by a flat plate or a flat plate including a through-hole with an opening ratio of 20% or less, and
the liquid level of the electrolytic solution is maintained by replenishing hydrogen fluoride.