Treatment of waste water from nitrile production

Details Treatment of waste water from nitrile production Treatment of waste water from nitrile production

1978-05-15

1981-01-20

Rotman, Alan L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

260465C, 2604653, 2604659, 203 10, 203 25, 203 96, 203DIG3, C07D21357, C07C12154, C07C12156, C07C12130

Patent

active

042464170

ABSTRACT:
Waste water recovered from a nitrile production effluent, containing ammonia, hydrogen cyanide, carbon dioxide and water soluble polymers is stripped of ammonia, carbon dioxide and hydrogen cyanide to produce an aqueous stream containing the water soluble polymer. At least a portion of this stream is introduced into a steam scrubber to generate steam therefrom, with scrubber bottoms and any remaining water from the stripping operation being introduced into a reboiler to provide steam for the stripping and an aqueous concentrate of the water soluble polymer. Heat for the reboiler can be provided by indirect heat transfer with steam from the scrubber which produces a condensate suitable as feed water for steam generation.

REFERENCES:
patent: 4059492 (1977-11-01), Hausweiler et al.

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