Apparatus for Generating Fluorine Gas

Abstract

[Object] To provide a fluorine gas generating system which can stably supply high purity fluorine gas while preventing blockade of a purification apparatus for adsorbing and removing hydrogen fluoride. [Solving means] A fluorine gas generating system characterized by including a purification apparatus 20 for adsorbing and removing hydrogen fluoride vaporized from a molten salt of an electrolysis tank 1 and mixed in fluorine gas generated at an anode 7, in which the purification apparatus 20 includes a cylindrical member through which main-product gas containing fluorine gas generated in the electrolysis tank 1 flows, a temperature regulator for regulating temperature of the cylindrical member, and an adsorbent holder disposed inside the cylindrical member, the adsorbent holder being disposed to form an aperture for securing a flow passage of the main-product gas inside the cylindrical member.

1 . A fluorine gas generating system for generating fluorine gas by electrolyzing hydrogen fluoride in a molten salt containing hydrogen fluoride, characterized by comprising:
 an electrolysis tank in which hydrogen fluoride is electrolyzed in an electrolysis bath including the molten salt containing hydrogen fluoride to generate a main-product gas whose main component is fluorine gas at an anode side and a by-product gas whose main component is hydrogen gas at a cathode side; and   a purification apparatus in which hydrogen fluoride mixed in the main-product gas is removed by an adsorbent,   wherein the purification apparatus includes   a cylindrical member through which the main-product gas passes,   a temperature regulator for regulating a temperature of the cylindrical member, and   an adsorbent holder disposed inside the cylindrical member, the adsorbent holder being disposed to form an aperture for securing a flow passage of the main-product gas inside the cylindrical member.   
     
     
         2 . A fluorine gas generating system as claimed in  claim 1 , characterized in that the adsorbent holder includes plural or more adsorbent holders disposed to meander the flow passage of the main-product gas. 
     
     
         3 . A fluorine gas generating system as claimed in  claim 1 , characterized in that the adsorbent holder is a tray-like member, the tray-like member including a bottom plate section formed with a cutout section for allowing gas to flow therethrough, an outer periphery side wall section disposed standing at outer periphery of the bottom plate section except for the cutout section, and a cutout side wall section disposed standing at a cutout section side of the bottom plate section, and an upper end opening section of a main body of the tray-like member, and in that the outer periphery side wall section is disposed to internally contact with inner wall of the cylindrical member. 
     
     
         4 . A fluorine gas generating system as claimed in  claim 3 , characterized in that the bottom plate section is formed with a through-hole. 
     
     
         5 . A fluorine gas generating system as claimed in  claim 3 , characterized in that the adsorbent holder includes plural or more adsorbent holders disposed separate from each other in the cylindrical member, wherein a distance between the tray-like member and the adjacent tray-like member is not less than ⅕ of inner diameter of the cylindrical member and less than the inner diameter of the cylindrical member. 
     
     
         6 . A fluorine gas generating system as claimed in  claim 3 , characterized in that an area of the bottom plate section formed with the cutout section is not less than 50% and not more than 95% of an area of an inner diameter section of the cylindrical member.