ADSORPTION ISOTHERMS OF PHENOL AND 4-CHLOROPHENOL ON PETROLEUM ASPHALTENES M. JAOUI, C. ACHARD, N. HASNAOUI and M. ROGALSKI*
نویسندگان
چکیده
Les isothermes d'adsorption du phnol et du 4-chlorophnol en solution dans l'eau sur des asphaltnes floculs en masse et sur des asphaltnes dposs sur de la silice ont t dtermins par analyse chromatographique frontale 293, 298, 303 et 308 K. L'adsorption sur des asphaltnes floculs en masse tait la plus importante avec des isothermes correspondant un mcanisme de Freundlich. La quantit leve de phnols adsorbs suggre une migration possible des molcules du phnol travers la structure peu compacte des asphaltnes. Les isothermes observs dans le cas de silice tapisse d'asphaltnes ont montr que l'adsorption se produit en deux tapes correspondant probablement deux organisations diffrentes des molcules de solut la surface.
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