Refrigeration – Processes – Fractionally solidifying a constituent and separating the same
Patent
1987-03-16
1988-04-05
Capossela, Ronald C.
Refrigeration
Processes
Fractionally solidifying a constituent and separating the same
62123, B01D 904
Patent
active
047356413
ABSTRACT:
Ice is produced by supplying a cold antifreeze solution into a freezer vessel evacuated to operate at the triple point of water; feeding a stream of water into the vessel whereby (A) part of the water flashes into water vapor which extracts its latent heat of vaporization from the water in the freezer and part of the water is cooled and converted to ice crystals in a pool of water therein and (B) the water vapor is condensed by and absorbed into the cold antifreeze solution thereby forming a more dilute antifreeze solution; removing a mixture of ice crystals and water from the vessel; withdrawing dilute antifreeze solution from the vessel and subjecting the solution to a water separating treatment to separate water and form concentrated antifreeze, combining the concentrated antifreeze with antifreeze solution withdrawn from the vessel to form a combined antifreeze stream; cooling the combined antifreeze stream to produce a cold antifreeze stream; and recycling the cold antifreeze stream to the freezer vessel.
REFERENCES:
patent: 3342039 (1967-09-01), Bridge et al.
patent: 4003213 (1977-01-01), Cox
patent: 4081257 (1968-03-01), Lassmann
patent: 4474031 (1984-10-01), Collet
Capossela Ronald C.
CBI Research Corporation
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