Appeal No. 1996-1158
Application No. 08/077,599
I have discovered that it is possible to
reduce the amount of fuel utilized to produce carbon
black by reacting the reaction stream of a prior
carbon black forming process with an oxidant to
generate a stream of combustion products that will
react with carbon black yielding feedstock to
produce carbon black. The generation of this stream
of combustion products may be accomplished by
introducing any suitable oxidant, which may by any
oxygen containing material such as air, oxygen,
mixtures of air and oxygen, or other like materials
into the reaction stream. The resulting stream of
combustion products is reacted with additional
carbon black yielding feedstock to produce carbon
black. As a result, the amount of fuel utilized for
producing carbon black is reduced.
Also, we note that appellant has not disputed the examiner’s
finding that “the effluent from [the first reaction zone] of
Cheng’s process is still hot when it reaches the [second
reaction zone]. . . the claimed energy saving occurs in Cheng.
. . since no fuel is needed for [preheating]. . .”
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