Apparatus for controlling iron content of a zinc phosphating bat

Details Apparatus for controlling iron content of a zinc phosphating bat Apparatus for controlling iron content of a zinc phosphating bat

1974-11-14

1976-11-16

Hart, Charles N.

Liquid purification or separation

Structural installation

Closed circulating system

118418, 118603, 210195R, 210205, 210220, B01D 2100

Patent

active

039923002

ABSTRACT:
An apparatus for controlling the iron content of a zinc phosphating process. The processing bath is continuously aerated and agitated to precipitate iron compounds out of solution and maintain the precipitate in suspension. The bath is constantly recirculated through a series of settling tanks or a single compartmentalized tank wherein the precipitate is settled out of solution and from which relatively clarified solution is discharged back to the processing bath. Periodically iron bearing sediment is removed from the settling tanks for disposal as solid waste.

REFERENCES:
patent: 2128311 (1938-08-01), Mertes
patent: 2138349 (1938-11-01), Mallory
patent: 2678873 (1954-05-01), Sable
patent: 2702786 (1955-02-01), Hakes
patent: 3255097 (1966-06-01), Williams
patent: 3261711 (1966-07-01), Sallo
patent: 3575711 (1971-04-01), Krofchak
patent: 3772187 (1973-11-01), Othmer
patent: 3776186 (1973-12-01), Coch

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