New complexone derivatives of 8-hydroxy-quinoline and theirs application in UO22+ extraction

New complexone derivatives of 8-hydroxyquinoline (quinolinol) were synthesized by the Mannich reaction from secondary and primary amines. Our syntheses were carried out either at room temperature, at reflux or under microwave irradiation, in good yields. The use of the 7-(dioctylamino)methyl)quinolin-8-ol (3f) as new extractant for the uptake and removal of UO 2 2+ was investigated. Conditions for an effective sorption were optimized. The total sorption capacity was 102 (mg.g -1 ) under optimum experimental conditions.