Process for extracting dissolved salts from water

Details Process for extracting dissolved salts from water Process for extracting dissolved salts from water

1974-02-22

1976-06-29

Wolk, Morris O.

Concentrating evaporators

Processes

Involving waste liquid

23293R, 23298, 23303, 159 1S, 159 49, B01D 100, B01D 902, C01D 300

Patent

active

039665399

ABSTRACT:
Evaporation of water from a salt-saturated liquid is facilitated by adding a particulate solid having a density greater than that of the saturated liquid, and by maintaining a thin surface layer of liquid by settlement of the solids to leave an optimum one to two mils thickness of said layer.
Agitation is employed to restore the optimum thin layer, as required to overcome excessive settling or too rapid evaporation of the thin layer, referred to respectively, as a heavy layer of liquid, or a dry surface skin.

REFERENCES:
patent: 2987380 (1961-06-01), Brumbaugh et al.
patent: 3290231 (1966-12-01), Ries, Jr. et al.
patent: 3456708 (1969-07-01), Jansson et al.
patent: 3640850 (1972-02-01), Smith, Jr. et al.
patent: 3718003 (1973-02-01), Cook et al.
patent: 3801474 (1974-04-01), Castellucci et al.

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