Concentrating evaporators – Film type – Moving film
Patent
1975-08-15
1977-03-29
Sofer, Jack
Concentrating evaporators
Film type
Moving film
159 14, 159 17P, 159 17VS, 159 28R, 159 46, 159DIG13, 159DIG15, 159DIG19, 159DIG32, 23306, 202236, 202235, 202172, 165140, B01D 122, B01D 300, B01D 100
Patent
active
040147355
ABSTRACT:
In the processing of a corrosive liquid mixture, such as 50 to 80% aqueous sulfuric acid, by its passage over one surface of a wall of inert heat resistant material, and heating the other surface of said wall, thereby to evaporate from said corrosive liquid mixture the more volatile component thereof, the improvement which comprises heating said wall by contact with an inert liquid material, and heating said inert liquid material indirectly through heat exchange with a normally solid molten material. Desirably the wall of inert material is a pipe surrounded by a molten metal in a first annular jacket and a molten salt in a second annular jacket.
REFERENCES:
patent: 1141266 (1915-06-01), Raschig
patent: 2793939 (1957-05-01), Haltmeier
patent: 3004590 (1961-10-01), Rosenblad
patent: 3106515 (1963-10-01), Williams
patent: 3275530 (1966-09-01), Akers
patent: 3294650 (1966-12-01), Manteufel
Guth Hans
Kaiser Hans-Joachim
Kleine-Weischede Klaus
Kuhnlein Hans L.
Wieschen Hermann
Bayer Aktiengesellschaft
HCH. Bertrams Aktiengesellschaft
Sofer Jack
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