Process for the treatment of wastewater from aldolization...

Details Process for the treatment of wastewater from aldolization... Process for the treatment of wastewater from aldolization...

2011-05-17

2011-05-17

Drodge, Joseph W (Department: 1772)

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

C203S010000, C203S039000, C210S774000, C210S805000, C210S806000, C210S908000, C568S463000, C568S492000

Reexamination Certificate

active

07943047

ABSTRACT:
Process for the treatment of wastewater from an aldolization process which is contaminated with water-soluble and/or dispersed organic impurities by means of single-stage or multistage extraction with an organic liquid of the aldolization process wastewater which has been set to a pH of from 0 to 6, in which an organic liquid obtained by stripping of the acidified aldolization process wastewater or of the acidified and extracted aldolization process wastewater, condensation of the stripped compounds and phase separation of the condensate is used as extractant for the extraction of organic impurities from the acidified aldolization process wastewater and wastewater having a lower content of organic impurities than the aldolization process wastewater fed to the extraction is taken off from the stripping apparatus.

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