Continuous method and apparatus for separating solvent from solu

Details Continuous method and apparatus for separating solvent from solu Continuous method and apparatus for separating solvent from solu

1978-03-27

1980-11-11

Castel, Benoit

Distillation: processes, separatory

Water purification only

127 46R, 159 13R, 210176, 202185R, B01D 1700

Patent

active

042331536

ABSTRACT:
A method and apparatus for continuously separating a volatile solvent from a solution of the solvent and a relatively non-volatile solute at a temperature substantially below the boiling point of the solvent. The apparatus includes opposed, slightly spaced, extended surfaces across which a temperature differential is established. In an exemplification of desalination, salt water is applied along an upper edge of the warmer surface and flows downwardly by gravity. Condensate of warm vapor from the warmed salt water is formed and collects on the cooler surface and flows downwardly for subsequent collection and removal. The cooler surface can be maintained cool by application of sea water, and the warmer surface can be maintained warm by the rays of the sun or by any heated discharge whose heat would ordinarily be wasted, such as coolant from an internal combustion engine or a nuclear power reactor.

REFERENCES:
patent: 2541069 (1951-02-01), Jones et al.
patent: 2712386 (1955-07-01), Jones et al.
patent: 2834464 (1958-05-01), Fellows et al.

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