Appeal No. 2002-1102
Application No. 09/329,591
a secondary reactor having a bent conduit to increase a
moving distance of the fluid and serving to further decompose
unreacted PCB contained in the fluid introduced from the primary
reactor in the conduit;
a gas-liquid separator for separating, from the fluid,
carbon dioxide contained in the fluid introduced from the
secondary reactor;
means for separating the unreacted PCB flowing out of the
primary reactor and the deposited sodium carbonate, thereby
returning the sodium carbonate to the primary reactor, said means
for separating the unreacted PCB and the deposited sodium
carbonate comprising a cyclone separator, the cyclone separator
being caused to communicate with an oxidizing agent supply path
in the primary reactor, thereby promoting separation in the
cyclone separator and return of the separated sodium carbonate to
the primary reactor by the flow of the oxidizing agent;
pH detecting means for measuring pH of at least one of the
primary reactor and the secondary reactor;
sodium hydroxide supply means for supplying sodium hydroxide
to the reactor including the pH detecting means; and
control means for controlling an amount of sodium hydroxide
to be supplied corresponding to a pH value detected by the pH
detecting means.
The prior art set forth below is relied upon by the examiner
as evidence of obviousness:
Dickinson 4,714,032 Dec. 22, 1987
Swallow et al. (Swallow) 5,232,604 Aug. 3, 1993
Chen et al. (Chen) 5,324,439 Jun. 28, 1994
McBrayer, Jr. et al. (McBrayer) 5,755,974 May 26, 1998
(filed Mar. 3, 1995)
The admitted prior art described in the subject specification and
shown in Figure 10 of the appellants’ drawing.
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