Apparatus for removing organic components from an aqueous cleani

Details Apparatus for removing organic components from an aqueous cleani Apparatus for removing organic components from an aqueous cleani

1978-05-25

1982-06-29

Bascomb, Jr., Wilbur L.

Distillation: apparatus

Apparatus

Systems

134 12, 134109, 203 39, 203DIG16, 210511, 210634, 422260, B01D 300, B01D 1104

Patent

active

043371213

ABSTRACT:
A method and apparatus for removing organic contaminants from an aqueous metal-cleaning solution. The apparatus includes a first conduit, or pipe, for removing portions of the contaminated aqueous solution from its tank. The solution enters an extractor which permits intimate contact between the contaminated solution and an organic solvent. A second tube, or conduit, returns the aqueous solution, purified by this contact, to the original tank. A third conduit removes the organic solvent from the extractor after its contact with the aqueous solution, by which time it will contain organic components from the aqueous solution. This solvent, with the contaminants, enters a separator, such as a still, which removes the contaminants from it. The purified organic solvent then returns to the extractor along a fourth conduit. The cleansing operation proceeds intermittently or, preferably, continuously. Consequently, only a small amount of the aqueous solution need undergo purification at any particular time in order to maintain the organic contaminant level sufficiently low. The remainder of the aqueous solution stays in its original tank where it remains available for use notwithstanding the concurrent operation of the purification process.

REFERENCES:
patent: 3074786 (1963-01-01), Duthie
patent: 3926044 (1975-12-01), Alburger
patent: 3930879 (1976-01-01), Erickson et al.

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