Purification of waste water containing phthalic esters

Details Purification of waste water containing phthalic esters Purification of waste water containing phthalic esters

1974-09-03

1976-01-20

Spear, Jr., Frank A.

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Responsive to fluid flow

210475R, 210705, B01D 1100

Patent

active

039336301

ABSTRACT:
A process for the treatment of waste waters from the preparation of phthalic esters of alcohols to reduce the BOD and recover alcohols comprising treating the waste water with a strong acid and then extracting the acidified waste water with an alcohol, preferably the same as the alcohol used to form the phthalic ester.

REFERENCES:
patent: 2644009 (1953-06-01), Cash et al.
patent: 3476796 (1966-11-01), Kubu et al.

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