Distillation: processes – separatory – Water purification only – Under pressure or vacuum
Patent
1977-04-18
1978-10-17
Bernstein, Hiram H.
Distillation: processes, separatory
Water purification only
Under pressure or vacuum
203 91, 203 99, B01D 302
Patent
active
041207564
ABSTRACT:
A method for purifying a liquid by vacuum-induced vaporization of the impure liquid into a vapor in a first enclosure and subsequent pressure-induced condensation of the vapor into a relatively pure liquid in a second enclosure. A conduit interconnecting the two enclosures includes a pressure-sensitive one-way valve for permitting automatic pressure-induced vapor flow from the first enclosure to the second enclosure while preventing vapor flow in the opposite or return direction. In a first embodiment, the alternating pressure variation necessary to produce the vaporization in the first enclosure, the vapor flow through the conduit and the condensation in the second enclosure is produced by exposing the interiors of the two enclosures to the undulating motion of the surface of an open body of wave-active liquid. In a second embodiment, the alternating pressure variations are produced by mechanical means.
REFERENCES:
patent: 2716446 (1955-08-01), Ross
patent: 3050447 (1962-08-01), Olney
patent: 3127330 (1964-03-01), Katz
patent: 4035241 (1977-07-01), Carman
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