Synergistic Solvent Extraction of Zinc(II) and Cadmium(II) from Sulfate Medium by a Mixture of 1 - Phenyl - 3 - Methyl - 4 - Benzoylpyrazol - 5 - One and Methyl - Isobutyl Ketone

Authors : Djamel BARKAT, Zoubir DERRICHE

Pages : 381-389

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Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :The solvent extraction of zincinsert ignore into journalissuearticles values(II); and cadmiuminsert ignore into journalissuearticles values(II); from sulfate medium by 1 - phenyl - 3 - methyl - 4 - benzoylpyrazol - 5 - one insert ignore into journalissuearticles values(HPMBP); was studied in the following parameter functions: pH, concentration of the extractant, nature of diluent, concentration of the mineral anion and synergism. In the absence of the synergic agent methyl - isobutyl ketone insert ignore into journalissuearticles values(MIBK);, the complexes extracted are ZnL2insert ignore into journalissuearticles values(H2O);xinsert ignore into journalissuearticles values(org); and CdL2insert ignore into journalissuearticles values(H2O);yinsert ignore into journalissuearticles values(org); . In the presence of MIBK, the curves of extraction show the presence of several species of complexes that depend on the concentration of MIBK. For very weak concentrations, the extracted complexes are ZnL2insert ignore into journalissuearticles values(H2O);x insert ignore into journalissuearticles values(org); and CdL2insert ignore into journalissuearticles values(H2O);y insert ignore into journalissuearticles values(org); . For high concentrations, the extracted complexes are ML2insert ignore into journalissuearticles values(MIBK); insert ignore into journalissuearticles values(org); , ML2insert ignore into journalissuearticles values(MIBK);,MIBKinsert ignore into journalissuearticles values(org); and ML2insert ignore into journalissuearticles values(MIBK);,2MIBK insert ignore into journalissuearticles values(org); insert ignore into journalissuearticles values(M=Zn, Cd);. The extraction constants were calculated.
Keywords : Turk J Chem, 25, 2001, 381 389 Turk J Chem, vol 25, iss 3