Appeal No. 1999-0726
Application No. 08/664,432
and reads as follows:
18. A process, which comprises:
providing a material selected from the group
consisting of mineral oil, aromatic and aliphatic
solvents, said material containing small amounts of
water;
contacting said material with previously crushed
calcium carbide;
mechanically stirring said calcium carbide with said
material thereby causing said calcium carbide to react
with water present in said material for a time and under
conditions effective to form a liquid phase consisting of
said material having a water content less than 0.5 ppm
and a solid phase comprising calcium hydroxide and
unreacted calcium carbide;
separating said solid phase from said liquid phase;
taking aliquots of said liquid phase to form samples
of said material free of said solid phase and containing
less than 0.5 ppm water, said samples adapted to
constitute standards by adding water to each dehydrated
sample to achieve a water concentration level of at least
1 ppm, said standards to be used in a method of
determining water content in a given oil or solvent.
In support of his rejections, the examiner relies on the
following prior art references:
Alexander 2,399,192 Apr.
30, 1946
Earl 4,444,159 Apr.
2
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