Fluidized bed crystallization apparatus and method

Details Fluidized bed crystallization apparatus and method Fluidized bed crystallization apparatus and method

1980-02-14

1981-09-29

Yudkoff, Norman

Refrigeration

Processes

Fractionally solidifying a constituent and separating the same

62532, 62123, 134 8, 422245, B01D 904

Patent

active

042915503

ABSTRACT:
A method of crystallizing or freezing out a component of a mixture composed of a liquid and a dissolved or suspended solid material, or both, by passing the mixture upwardly through a column containing a mass of insoluble solid particles having a specific gravity greater than that of the mixture; by heat exchange to a cold fluid, indirectly cooling the mixture to a temperature at which the component crystallizes or freezes out of solution, as it flows upwardly in the column; said component being the liquid or dissolved solid material; and said flow of the mixture through the column being at a sufficient velocity to fluidize the insoluble solid particles into turbulent action to scour the column inside surface and thereby prevent build up thereon of the crystallized or frozen out component.
Apparatus for practicing the method is also disclosed.

REFERENCES:
patent: 2119182 (1938-05-01), Schuftan et al.
patent: 3375082 (1968-03-01), Graf
patent: 3628344 (1971-12-01), King
patent: 4162617 (1979-07-01), Schmidt et al.

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