Refrigeration – Processes – Treating an article
Patent
1988-04-29
1989-07-18
Caposseia, Ronald C.
Refrigeration
Processes
Treating an article
62 78, 62 511, F25D 1702
Patent
active
048480940
ABSTRACT:
The present invention relates to a method and apparatus for the generation of essentially spherical frozen droplets of a liquid biological or organic-comprising composition. The liquid composition if fed under positive pressure through a nozzle in a manner which provides a continuous stream of the liquid composition exiting the nozzle; the continuous stream travels through a gas or vapor for a distance sufficient to cause the continuous stream to break apart, forming droplets ranging in size from about 0.6 mm to about 5 mm; the liquid composition droplets are then contacted with a cryogenic liquid capable of freezing the droplets into a solid phase; the frozen droplets are concentrated into a portion of the contacting cryogenic liquid from which they are subsequently separated.
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Davis Robert B.
DeVack Donald L.
Caposseia Ronald C.
Church Shirley L.
Ktorides Stanley
Union Carbide Corporation
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