Appeal No. 96-1110
Application 08/181,669
4. In a process for the electrolytic production of fluorine gas in an
electrochemical cell comprising molten KF-2HF electrolyte a first electrode
used as a hydrogen-generating cathode, a second electrode used as a
fluorine-generating anode, wherein the improvement comprises generating
fluorine in said cell by using as said anode nongraphitic low-permeability
carbon with a plurality of parallel, substantially vertical channels disposed
around the circumference of said anode.
5. An electrode for use in an electrochemical cell for electrolytic production
of fluorine gas from molten KF-2HF electrolyte, said electrode comprising a
current collector and an anode, wherein said anode of said electrode is
comprised of nongraphitic porous carbon and is used as a fluorine-
generating anode, and a means for purging fluorine generated at said anode
and dispersed in said porous anode with metered, downward flowing gas
that is inert to said fluorine, such means for purging having a terminus above
an electrolyte upper surface when said electrode is positioned in said
electrochemical cell.
6. The electrode according to claim 5 wherein said means further comprises
a conduit means positioned in said anode at a geometric center of said
anode, commencing at upper, outside surface of said current collector and
terminating before the upper surface of said electrolyte.
In the rejection of the appealed claims, the examiner relies upon the following
references.
Saprokhin et al. (Saprokhin) 4,511,440 Apr. 16, 1985
Ruehlen et al. (Ruehlen) 3,655,535 Apr. 11, 1972
Marshall GB 2,135,335 Aug. 30, 1984
(British patent)
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