Liquid concentration method

Details Liquid concentration method Liquid concentration method

1980-01-07

1981-05-05

Sever, Frank

Concentrating evaporators

Processes

Involving waste liquid

159DIG13, 159 17R, 165106, 165108, 202DIG1, 203 11, 203 7, 210696, B01D 128

Patent

active

042657016

ABSTRACT:
An evaporator for increasing the solids content of a liquid-solids mixture employs vapor compressor means to recycle superheated vapors that are boiled off the mixture by a heat transfer fluid. The super-heated vapors are forced into the mixture before the mixture is heated by passage over a heat transfer surface, and the vapors cause the mixture to flow past such heat transfer surface at sufficient velocity to prevent excessive solids from depositing on the heat transfer surface.

REFERENCES:
patent: 1600106 (1926-09-01), Fothergill
patent: 1771810 (1930-07-01), Morterud
patent: 2769489 (1956-11-01), Eckstrom
patent: 3165435 (1965-01-01), Henszey
patent: 3323575 (1967-06-01), Greenfield
patent: 3326266 (1967-06-01), Braithwaite et al.
patent: 3425477 (1969-02-01), Farin
patent: 3558438 (1971-01-01), Schoenbeck
patent: 3921918 (1975-11-01), Peterson
patent: 4193446 (1980-03-01), Greis et al.
"Chemical Engineer's Handbook"; 4th vol., Perry; pp. 11-24 to 11-29.

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