Stripping column

Details Stripping column Stripping column

1977-01-25

1979-05-01

Yudkoff, Norman

Concentrating evaporators

Gaseous blast or current

159DIG8, 159 29, 261 21, 159 18, 159 20R, B01D 114

Patent

active

041521960

ABSTRACT:
The column employs a head section with a counterflow column, a bottom section with a counterflow column and a plurality of reaction stages for stripping metal salts via steam from ammoniacal solutions or suspensions. Each reaction stage has a floor, a pipe defining a laterally confined chamber, an outlet and a valve in the outlet to control the discharge of liquid. At least one steam line communicates the upper end of each stage with the pipe in the next uppermost stage. Incrustation of the column by the stripped salts is reduced by the high velocity of flow in the bubble bed in each stage.

REFERENCES:
patent: 1616209 (1927-02-01), Weisgerber
patent: 2356628 (1944-08-01), Stalman
patent: 3421567 (1969-01-01), Hoppe
patent: 3737378 (1973-06-01), Mori et al.

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