Patent ID: 7351322
Filing Date: 2008-04-01
Classification: C25B

Abstract:
1. A fluorine gas generator for generating fluorine gas by electrolyzing an electrolytic bath including hydrogen fluoride and a mixed molten salt, comprising: an anode chamber including an anode; a cathode chamber including a cathode; a partition wall separating the anode chamber and the cathode chamber; an electrolytic bath liquid level control device configured to control a height of electrolytic bath liquid level in at least one of the anode chamber and the cathode chamber during suspension of fluorine gas generation; and said electrolytic bath liquid level control device including an electric supply for supply of an electrolysis current between the anode and cathode during the electrolyzing and for supply of a maintenance current smaller than the electrolysis current between the anode and cathode during suspension of fluorine gas discharge from the fluorine gas generator to maintain the height of the electrolytic bath liquid level by pressure adjustment in the anode chamber, wherein the electrolytic bath liquid level control device comprises a pressure sensor, and a pressure controller operated in association with the pressure sensor and configured to control the pressure in the anode chamber in order to control the difference of the liquid level in the anode chamber and the cathode chamber.