Process and apparatus for recovering clean water from aqueous wa

Details Process and apparatus for recovering clean water from aqueous wa Process and apparatus for recovering clean water from aqueous wa

1971-07-22

1976-03-30

Sofer, Jack

Distillation: processes, separatory

Addition of material to distilland to inhibit or prevent...

For scale inhibiting or corrosion preventing

202174, 159 1RW, 159 17R, 159 13A, 159DIG17, 159DIG25, 210513, 203 10, 208187, B01D 126, B01D 334, B01D 302

Patent

active

039473279

ABSTRACT:
Process and apparatus for recovering clean water from aqueous wastes by evaporation while avoiding scaling and fouling as well as corrosion of the evaporator tubes. Addition of an oil, preferably a volatile oil, to the aqueous waste feed results in the formation of a coating of said oil on the surfaces of the tubes, thereby preventing corrosion and fouling and build-up of scale deposits. Volatile oil that distills over is separated from the aqueous distillate by conventional means and may be recirculated.

REFERENCES:
patent: 1997980 (1935-04-01), Smith
patent: 2182428 (1939-12-01), Fladmark
patent: 3251398 (1966-05-01), Greenfield
patent: 3304991 (1967-02-01), Greenfield
patent: 3323575 (1967-06-01), Greenfield
patent: R26317 (1967-12-01), Greenfield
patent: R26352 (1968-02-01), Greenfield

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