Concentrating evaporators – Processes – Involving waste liquid
Patent
1990-01-08
1991-04-30
Manoharan, Virginia
Concentrating evaporators
Processes
Involving waste liquid
159 29, 159DIG16, 203 2, 203 91, 354299, B01D 100
Patent
active
050115715
ABSTRACT:
A method of treating photographic process waste liquor through concentration by evaporation, including heating under reduced pressure an upper part of photographic process waste liquor to concentrate by evaporation the photographic process waste liquor in such a manner that a difference in temperature may be given between the temperature of the photographic process waste liquor in the vicinity of the heated part and the temperature at a bottom part of the photographic process waste liquor, and causing a solute in the photographic process waste liquor to settle.
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Goto Nobutaka
Kobayashi Kazuhiro
Koboshi Shigeharu
Kurematsu Masayuki
Takabayashi Naoki
Konica Corporation
Manoharan Virginia
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