Title:
FLUORINE GAS PRODUCTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/085066
Kind Code:
A1
Abstract:
Provided is a fluorine gas production device such that, even when electrolysis of an electrolytic solution containing hydrogen fluoride is carried out at a high current density, recombination reaction in the electrolytic solution and recombination reaction in gas-phase parts in an anode chamber and a cathode chamber are less likely to occur, enabling a fluorine gas to be produced by electrolyzing the electrolytic solution with high current efficiency. The fluorine gas production device is provided with: an electrolytic cell (1); a dividing wall (7) extending downward in a vertical direction from an inner ceiling surface of the electrolytic cell (1) and dividing the electrolytic cell (1) into an anode chamber (12) and a cathode chamber (14); an anode (3); and a cathode (5). The lower end of the dividing wall (7) is immersed in an electrolytic solution (10), and the vertical length (H) of the portion of the dividing wall (7) immersed in the electrolytic solution (10) is 10% to 30% of the distance from an inner bottom surface of the electrolytic cell (1) to the liquid level of the electrolytic solution (10). The cathode (5) is completely immersed in the electrolytic solution (10), with the upper end of the cathode (5) being positioned below the lower end of the dividing wall (7) in the vertical direction. A portion of the anode 3 is exposed from the surface of the electrolytic solution (10).
Inventors:
FUKUCHI YOHSUKE (JP)
KUSUMOTO NOZOMI (JP)
KOBAYASHI HIROSHI (JP)
KUSUMOTO NOZOMI (JP)
KOBAYASHI HIROSHI (JP)
Application Number:
PCT/JP2019/039545
Publication Date:
April 30, 2020
Filing Date:
October 07, 2019
Export Citation:
Assignee:
SHOWA DENKO KK (JP)
International Classes:
C25B9/00; C25B1/24
Foreign References:
| JP2005533925A | 2005-11-10 | |||
| JPS4020246B1 | 1965-09-09 | |||
| JP2002339090A | 2002-11-27 | |||
| JP2766845B2 | 1998-06-18 | |||
| JPH072515A | 1995-01-06 |
Other References:
"Industrial Electrochemical Processes", 1971, ELSEVIER PUBLISHING COMPANY, pages: 6 - 69
See also references of EP 3872235A4
See also references of EP 3872235A4
Attorney, Agent or Firm:
TANAKA Hidetetsu et al. (JP)
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