Method for treating and rinsing metal articles

Details Method for treating and rinsing metal articles Method for treating and rinsing metal articles

1974-10-31

1976-09-07

Bashore, S. Leon

Cleaning and liquid contact with solids

Processes

Including regeneration, purification, recovery or separation...

134 12, 134109, 204232, 204239, B08B 704, C23G 136

Patent

active

039792200

ABSTRACT:
Metal articles are sequentially treated in a surface-treatment tank containing a solution of surface-treating agents, then rinsed in a plurality of series-connected water-washing tanks.
The contents of the surface-treatment tank and water-washing tanks are cycled to a concentrator by way of a heat exchanger and concentrated solution is returned to the surface-treatment tank. Steam is condensed in the heat exchanger to cause evaporation of water in the concentrator and the steam condensate is transferred to the water-washing tanks.

REFERENCES:
patent: 2047611 (1936-07-01), Baxter
patent: 2428221 (1947-09-01), Hudson
patent: 2529762 (1950-11-01), Brisse
patent: 2721562 (1955-10-01), Irvine
patent: 2993492 (1961-07-01), Mains et al.
patent: 3445284 (1969-05-01), Robinson et al.
patent: 3849197 (1974-11-01), Sorrentino

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