Removal of color from paper mill waste waters

Details Removal of color from paper mill waste waters Removal of color from paper mill waste waters

1975-12-05

1977-11-15

Bascomb, Jr., Wilbur L.

Liquid purification or separation

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

Responsive to fluid flow

162 29, 210 53, 210 54, C02C 140

Patent

active

040584585

ABSTRACT:
Color is removed from paper mill waste water by a precipitation method using relatively small amounts of alkylated and acylated amines and quaternary compounds thereof under acidic conditions as a complexing agent and precipitant for color bodies in such waste waters.

REFERENCES:
patent: 2315734 (1943-04-01), Ralston et al.
patent: 2862880 (1958-12-01), Clemens
patent: 3129170 (1964-04-01), Ittlinger
patent: 3227650 (1966-01-01), Bell
patent: 3372129 (1968-03-01), Phillips
patent: 3412018 (1968-11-01), Monzie
patent: 3509047 (1970-04-01), Rushton
patent: 3578587 (1971-05-01), Kemmer

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