Crystallization by evaporation and vapor condensation

Details Crystallization by evaporation and vapor condensation Crystallization by evaporation and vapor condensation

1998-04-29

2000-02-22

Capossela, Ronald

Refrigeration

Processes

Fractionally solidifying a constituent and separating the same

62123, B01D 904

Patent

active

060266562

ABSTRACT:
In a process for crystallizing material to be isolated, fluid is vaporized from a melt or a solution comprising the material to be isolated and the fluid and the vaporized fluid is condensed or absorbed in a liquid material to form a liquid mixture, wherein the fluid components to be condensed/absorbed have partial pressures over the liquid mixture which are smaller than the partial pressures of these components over the crystallizing solution/melt and the freezing point of the liquid mixture is lower than the condensation/absorption temperature in the liquid mixture.

REFERENCES:
patent: 3963424 (1976-06-01), Bella, Jr.
patent: 5061306 (1991-10-01), Cheng
patent: 5230769 (1993-07-01), Jancic et al.
patent: 5400618 (1995-03-01), Dekraker
Patent Abst. of Japan, vol. 95, No. 6, Jul. 28, 1995 (English abstract of JP 07 082210, Mar. 28, 1995).
L.C. Dickey/Desalination 104 (1996) 155-163.
Heat and Mass transfer Characteristics of a New Combined Absorber-Evaporator, 31 (1996) 291-299.

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