REMOVAL OF ETHOXYLATED ALIPHATIC-AMINES FROM ZINC-CONTAINING EFFLUENTS BY ADSORPTION ON MACROPOROUS RESINS

The separation of ethoxylated aliphatic amines from zinc containing ef fluents with macroporous polymeric adsorbents Wofatit EP 61, EP 62, Y 59, Y 77 and active carbons has been examined. The adsorption behaviou r has been investigated as a function of temperature, time and concent ration of Na2SO4, ZnSO4 and H2SO4. The macroporous polymers EP 61, Y 7 7 and Y 59 are capable of separating ethoxylated aliphatic amines from effluents of viscose fibre industry at higher temperatures and under weakly acidic conditions. In contrast to active carbon, inorganic comp onents are not adsorbed on the investigated macroporous resins. Data o btained in a concentration range of 0 to 10 g of adsorbate per litre p roduced a Langmuir profile for adsorption of ethoxylated aliphatic ami nes by polymeric adsorbents.