Appeal No. 1999-0058
Application No. 08/701,878
16 and 17) and a process for its preparation (claims 1 through 4,
7 through 14, and 18 through 23). According to the present
specification, the catalyst is particularly useful for
dehydrogenation of a particular hydrocarbon feedstock. (Page 3,
lines 6-9.) Further details of this appealed subject matter are
recited in illustrative claims 1, 21, and 22 reproduced below:
1. A process for the preparation of a catalyst
comprising at least one metal from group VIII of the
periodic table, at least one alkali metal or alkaline-
earth metal, at least one halogen or halogenated
compound, at least one metal M which is germanium, tin,
lead, iron, titanium or chromium, a support and
optionally sulfur, said process comprising impregnating
the group VIII metal into the support by means of an
aqueous solution of a halogenated compound thereof, and
impregnating metal M into the support subsequent to
calcination and activation of a precatalyst containing
the support and group VIII metal, in an inert or
reducing atmosphere, thereby producing said catalyst.
21. A process for the preparation of a catalyst
comprising at least one metal from group VIII of the
periodic table, at least one alkali metal or alkaline-
earth metal, at least one halogen or halogenated
compound, at least one metal M which is germanium, tin,
lead, iron, titanium or chromium, and optionally
sulfur, said process comprising impregnating the group
VIII metal by means of an aqueous solution of a
halogenated compound thereof, and impregnating metal M
subsequent to calcination and activation of a
precatalyst containing the support and group VIII
metal, in an inert or reducing atmosphere, thereby
producing said catalyst, wherein the metal from group
VIII is platinum, palladium or ruthenium.
22. A process for the preparation of a catalyst
comprising at least one metal from group VIII of the
periodic table, at least one alkali metal or alkaline-
earth metal, at least one halogen or halogenated
compound, at least one metal M which is germanium, tin,
lead, iron, titanium or chromium, and optionally
(Advisory action of October 8, 1997, paper 9; decision on
petition of February 5, 1998, paper 13.)
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