Method and apparatus for drying a solid material wetted with a s

Details Method and apparatus for drying a solid material wetted with a s Method and apparatus for drying a solid material wetted with a s

1984-12-12

1986-11-11

Schwartz, Larry I.

Drying and gas or vapor contact with solids

Apparatus

With means to treat gas or vapor

34 15, 34 35, 34 77, 34 86, 34 27, 34 36, 34 57R, 118 61, 4273722, F26B 312

Patent

active

046214372

ABSTRACT:
The invention relates to a method of drying a solid wetted with a solvent or solvent mixture by causing superheated vapour of the solvent or solvent mixture as a carrier medium to flow through the material to be dried in an evaporation room, the solvent or solvent mixture evaporating and being carried along with the carrier medium, and by then causing the evaporated solvent or solvent mixture to condense from the carrier medium, if desired after compression thereof, in a cooling device. During this drying process a sub-ambient pressure is provided in the evaporation room and the temperature in the evaporation room is controlled by adjusting the sub-ambient pressure, if desired, in combination with an additional temperature controlling means. The inventiona also relates to a device for using the above method.

REFERENCES:
patent: 3212197 (1965-10-01), Crawford
patent: 3699662 (1972-10-01), Stephanoff
patent: 4185397 (1980-01-01), Hutzenlaub
patent: 4205456 (1980-06-01), Ayers et al.
patent: 4245395 (1981-01-01), Potter
patent: 4385450 (1983-05-01), Thomas et al.

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