Process and apparatus for fractional desublimation of...

Details Process and apparatus for fractional desublimation of... Process and apparatus for fractional desublimation of...

B - Operations, Transporting

01

D

23/404

B01D 7/00 (2006.01) B01D 7/02 (2006.01)

Patent

CA 1262613

ABSTRACT OF THE DISCLOSURE A process and apparatus for fractional desublimation of vapor-phase solids from gas vapor mixtures is provided. The invention results in desub- limation of solids from gas-vapor mixtures by immediate cooling of the gas- vapor mixture in a gaseous space which is made possible by the collision of opposing high velocity streams of gas-vapor mixture and cooling gas. Fractional desublimation of the solids is attained by adjustment of the temper- ature of the cooled gas-vapour mixture. The solid to be desublimed is obtained with high yields and purity. The simplicity of the apparatus and the fact that desublimation does not take place on cooled surfaces allows for low-cost, troublefree operation.

499625

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