Appeal No: 1997-1820
Application No: 08/313,941
support as a catalyst. The catalyst is characterized as
containing less than about 200 ppm of phosphorous and less
than about 200 ppm sulfur. According to applicant, catalysts
low in both phosphorus and sulfur have improved catalytic
properties (Paper 1 (08/313,941 ('941) specification) at 13-
14).
The catalysts are prepared by washing the carbon support
with an acid which is said to remove phosphorus and sulfur so
that the carbon has less than 200 ppm of each. Other
inorganic constituents of the carbon such as potassium,
sodium, and iron are also said to be removed by the acid wash
so that the carbon has less than 100 ppm of these constituents
(Paper 1 at 6-7).
Claim 1 is illustrative of the claimed process:
1. A process for the catalytic hydrogenolysis
of a cyclic or acyclic compound having the formula
C H F X wherein n is an integer from 1 to 6, m is ann m p q [2]
integer from 0 to 12, p is an integer from 1 to 13,
q is an integer from 1 to 13 and each X is
independently selected from Cl and Br, provided that
2 In the claims attached to Appellant's brief (APPENDIX I), claim 1
reads that "n is an integer from 1 to 5." The "5" appears to be a
typographical error and should instead be "6" (see original claim 1 (Paper 1
at 15).
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