Distillation: processes – separatory – Water purification only
Patent
1976-05-21
1977-10-11
Lutter, Frank W.
Distillation: processes, separatory
Water purification only
202233, 202234, 202235, 203DIG1, 203DIG17, B01D 300, B01D 310
Patent
active
040533689
ABSTRACT:
A process for the purification of water comprises a step-wise procedure for heating and evaporating water to be purified at different location and then condensing water thus evaporated. The water is heated in the form of a sheet by solar energy while in a pan at least part of the bottom of which is capable of absorbing the heat content of solar radiation, and in which it is covered by a layer of liquid which transmits solar radiation therethrough, is immiscible with water and which has a vapor pressure less than that of water. The liquid is usually an oil. Various mechanical devices are disclosed for optimizing utilization of solar radiation reaching the pan. Evaporation of heated water removed from the sheet of water to the evaporator is preferably effected under reduced pressure.
REFERENCES:
patent: 2141330 (1938-12-01), Abbot
patent: 3072920 (1963-01-01), Yellott
patent: 3138546 (1964-06-01), Muller
patent: 3300393 (1967-01-01), Fisher
patent: 3359183 (1967-12-01), Kenk
patent: 3394054 (1968-07-01), Hoham
patent: 3455790 (1969-07-01), Marks
Courvoisier Jean-Claude F.
Fournier Jacques Pierre D.
Gross Daniel M.
Meylan Jean-Luc Ch.
Adams Bruce L.
Battelle (Memorial Institute)
Burns Robert E.
Lobato Emmanuel J.
Lutter Frank W.
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