Patent ID: 8419908

Claim:
A system for feeding fluorine or nitrogen trifluoride to a reactor for performing a reaction using fluorine or nitrogen trifluoride, said system comprising: an electrolytic apparatus comprising an electrolytic cell which is partitioned into an anode chamber and a cathode chamber by a partition wall, an anode which is disposed in said anode chamber, and a cathode which is disposed in said cathode chamber, said electrolytic cell having an inlet for feeding thereto a hydrogen fluoride-containing molten salt as an electrolysis liquid or a raw material for said hydrogen fluoride-containing molten salt, said anode chamber having an anode gas outlet for withdrawing gas from said electrolytic cell, said cathode chamber having a cathode gas outlet for withdrawing gas from said electrolytic cell, said anode comprising a conductive substrate and a coating layer formed on at least a part of the surface of said conductive substrate, wherein at least a surface portion of said conductive substrate is comprised of a conductive carbonaceous material, wherein said coating layer is comprised of a conductive carbonaceous material having a diamond structure, wherein the ratio of the horizontal cross-sectional area of said cathode chamber to the horizontal cross-sectional area of said anode chamber is 2 or more; and a purification apparatus for purifying fluorine or nitrogen trifluoride produced using said electrolytic apparatus, wherein, in operation, feeding of fluorine or nitrogen trifluoride from said system to a reactor for performing a reaction using fluorine or nitrogen trifluoride is performed through said purification apparatus.