Appeal No. 95-1641
Application No. 07/825,927
18, the remaining claims, are said to be allowable if
rewritten in independent form, including all of the
limitations of their parent claims.
The subject matter on appeal is directed to a method and
an apparatus for crystallizing anhydrous fructose from an
aqueous solution containing fructose. This subject matter is
adequately described in claims 1 and 15, which are reproduced
below:
1. A large scale method for crystallizing anhydrous fructose
as crystals having a mean crystal size of at least about 0.35
mm from water comprising:
(a) preparing an aqueous solution containing at
least about 90% dry substance, the fructose content of the dry
substance being at least about 90% by weight;
(b) seeding said aqueous solution at a temperature of
50-60°C; and
(c) cooling the seeded solution at a controlled rate in
less than about 45 hours and with continous mixing effective
to maintain the supersaturation of the liquid solution with
respect to saturated fructose at less than a ratio of about
1.25 and the temperature difference between said solution and
the cooling means is less than about 10°C.
15. A cylindrical crystallizer having a processing
volume sufficient for at least about 10 cubic meters of a
fructose solution in a single batch [sic:,] a heat transfer
area of over about 4 m /m , and an effective means for mixing2 3
such that the temperature difference between a solution
containing fructose and the cooling means is no greater than
about 10°C.
2
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