Purification of waste water from hydrazine production

Details Purification of waste water from hydrazine production Purification of waste water from hydrazine production

1976-06-15

1977-11-01

Wyse, Thomas G.

Liquid purification or separation

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

Responsive to fluid flow

C02C 504

Patent

active

040564690

ABSTRACT:
A process for the purification of waste water produced in hydrazine production by the oxidation of ammonia or an amine with an oxidizing agent in the presence of an aldehyde or ketone, comprising intensively mixing the waste water with chlorine or a hypochlorite at a temperature of about 10.degree. C to 110.degree. C and a pH of about 5 to 10 until the treated waste water reaches a redox potential to platinum, relative to Ag/AgCl, of about -400 mV to +800 mV. Advantageously a small amount of waste water is distilled off both before and after the chlorine or hypochlorite treatment.

REFERENCES:
patent: 3767572 (1973-10-01), Bober et al.
patent: 3923648 (1975-12-01), Lashley

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