Appeal No. 2006-0753
Application No. 09/682,010
as being directed to a non-elected invention. We have
jurisdiction pursuant to 35 U.S.C. § 134.
APPEALED SUBJECT MATTER
Claims 1, 3, 4 and 5 are representative of the subject
matter on appeal1 and read as follows:
1. A process for preparing a zeolite catalyst comprising:
(a) first, heating a zeolite at a first temperature in
the range of 350 - 450°C in a first flowing gas for 4-6 h;
(b) second, calcining the zeolite at second temperature
in the range of 450 - 1000°C for 1-3 hours in a continuous flow
of a second gas, wherein said second temperature is at least
100°C greater than said first temperature; and
(c) third, cooling the zeolite catalyst to a temperature
of from 225 - 500°C.
3. A process according to claim 1, wherein the zeolite is a
high-silica pentasil zeolite.
4. A process according to claim 3, wherein the high-silica
pentasil zeolite is an H-form of ZSM-5 zeolite with a Si/Al ratio
greater than 20.
5. A process according to claim 4, wherein the Si/Al ratio
ranges from 40 to 100.
1 We limit our consideration to claims 1, 3, 4 and 5
pursuant to 37 CFR § 41.37(c)(1)(vii)(2004). The appellants have
not separately argued the remaining claims on appeal. See the
Brief and the Reply Brief in their entirety.
2
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