JMMCE  Vol.1 No.3 , May 2013
Studies on Extraction Behaviour of Cobalt(II) with Nitrobenzoylprazolone-5
ABSTRACT
The extraction of Cobalt(II) from aqueous solution using 1-phenyl-3-methyl-4-(p-nitrobenzoyl)pyrazolone (HPMNP) in various organic solvents was studied as a function of pH and extractant concentration. Extraction into organic chloroform phase was more efficient than with any other solvent. The extraction equilibrium constant was found to be log Kex= -7.04. Optimum conditions for extraction of Co(II) exist at pH of between 5.5 and 7.0, ionic strength of 0.3 Mand constant extractant concentration of 0.02 M. Shaking the organic Co(II) chelate complex with 0.2 Macid strips the Co(II) ions into the aqueous phase. It was established that Co(II) complex extracted is of composition, Co(PMNP)2.

Cite this paper
O. Gerald, A. Judith and O. Martin, "Studies on Extraction Behaviour of Cobalt(II) with Nitrobenzoylprazolone-5," Journal of Minerals and Materials Characterization and Engineering, Vol. 1 No. 3, 2013, pp. 90-94. doi: 10.4236/jmmce.2013.13017.
References
[1]   D. S. Flett and D.S West, “Improved Solvent Extraction Process for Co-Ni Separation by Use of DI(2-Ethylhexyl) Phosphoric Acid (D2EHPA),” In: M. J. Jones, Ed., Complex Metallurgy 78, London, 1975, pp. 49-57.

[2]   D. S. Flett and M. T. Anthony, “Cobalt Extractive Metallurgy: A Review,” International Journal of Minerals, Metallurgy and Materials, Vol. 1, No. 2, 1998, pp. 299-312.

[3]   A. Inove, S. Hatae and M. Kwahara, “The Extraction of Ni, Co, and Cu Using Solvent Impregnated Resin-Absorbed LIX 844,” Journal of Mineral Processing, Vol. 114, No. 11, 1988, pp. 819-824.

[4]   N. B. Devi, K.C. Nathsaram and V. Chakravortly, “Separation and Recovery of Co(11) and Ni(11) from Suplhate Solutions Using Sodium Salt of D2EHPA, PC 88A and Cyanex 272,” Hydromet, Vol. 49, No. 1-2, 1998, pp. 49- 61. doi:10.1016/S0304-386X(97)00073-X

[5]   S. Diptesh, K. Rishi, S. Ashoke, P. R. Maulik and R. V. Ji, “Stereoselective Alkenylation of a 1,3-Disubstituted Pyrazol-5-One through Ring Transformation of 2H-Puran-2- Ones,” Terahedron Letters, Vol. 46, No. 22, 2005, pp. 3807-3809. doi:10.1016/j.tetlet.2005.03.207

[6]   P. Sarbani, T. Mareddy and M. S. Devi, “High Speed Synthesis of Pyrazolones Using Microwave-Assisted Heat Reaction Technology,” Journal of the Brazilian Chemical Society, Vol. 19, No. 6, 2008, pp. 1552-1590.

[7]   E. C. Okafor and B. A. Uzoukwu, “Extraction of Fe(III) and U(IV) with 1-Phenyl-3-Methyl-4-Benzoylpyrazolone- 5,” Radiochimica Acta, Vol. 54, No. 4, 1990, pp. 167- 172.

[8]   D. N. Ekekwe, A. J. Arinze, L. A. Nnanna, C. F. Ukpabia and M. O. C. Ogwuegbu, “Synthesis, Complexation and Characterization of 1-Phenyl-3-Methyl-4-(p-Nitrobenzoyl) Pyrazolone-5 and Its Complexes of Ba(II), Sr(II), Zn(II),” American Journal of Chemistry, Vol. 2, No. 2, 2012, pp. 52-56.

[9]   M. O. C. Ogwuegbu and N. C. Oforka, “Solvent Extraction Separation of Fe(III), Co(III), Ni(II) and Cu(II) from Aqueous Solution with 1-Phenyl-3-Methyl-4-(p-Nitroben- zoyl)-5-Pyrazolone,” Hydrometallurgy, Vol. 34, No. 3, 1994, pp. 359-367. doi:10.1016/0304-386X(94)90072-8

[10]   T. Miyasou, A.-H. Kwon, K. Tsuji, Z. Qiu, T. Okumura and Y. Kamiyama, “Edaravone Prevents Fas-Induced Fulminant Hepatic Failure in Mice by Regulating Mitochondrial BCL-XL and BAX,” Shock, Vol. 30, No. 2, 2008, pp. 212-216 .

[11]   A. Mohamed, G. A. Bou-Rahma and A. Alaa, “Synthesis of Novel Pyrazole Derivatives and Evaluation of Their Antidepressant and Anticonvulsant Activities,” European Journal of Medicinal Chemistry, Vol. 44, No. 9, 2009, pp. 3480-3487. doi:10.1016/j.ejmech.2009.01.032

[12]   G. Mariappani, B. P. Sala, N. R. Bhuyan, P. R. Bharti and K. Deepak, “Evaluation of Antioxidant Potential of Pyrazolone Derivatives,” Journal of Advanced Pharmaceutical Technology & Research, Vol. 1, No. 2, 2010, pp. 260- 267.

[13]   W. Mickler, A. Reich and E. Uhlemann, “Extraction of Zinc with Long-Chain Diketone,” Separation Science and Technology, Vol. 30, No. 12, 1995, pp. 2585-2592. doi:10.1080/01496399508021404

[14]   C. Yude, M. Jajum, F. Lei and I. Xinthai, “Study on the Ternary Synergistic Extraction of U(VI) by Chelating Neutral Extractant,” Journal of Radioanalytical and Nuclear Chemistry, Vol. 108, No. 1, 1986, pp. 41-53. doi:10.1007/BF02165758

[15]   M. O. C. Ogwuegbu and F. Chileshe, “Coordination Chemistry in Mineral Processing,” Mineral Processing and Extractive Metallurgy Review: An International Journal, Vol. 21, No. 6, 2000, pp. 497-525. doi:10.1080/08827500008914176

[16]   M. O. C. Ogwuegbu, N. C. Oforka and A. I. Spiff, “Enhanced Extraction of Ni(II) with 3-Methyl-4-(p-Nitroben- zoyl)-5-Oxo-Phenylpyrazole in the Presence of Benzyl Alcohol,” South African Journal of Chemistry, Vol. 49, No. 1-2, 1996, pp. 26-30.

[17]   M. O. C. Ogwuegbu and E. Orji, “Liquid-Liquid Extraction Separation of U(VI) and Ni(II) by a Substituted Oxo- Pyrazole,” Mineral Engineering, Vol. 10, No. 11, 1997, pp. 1269-1278.
doi:10.1016/S0892-6875(97)89717-8

[18]   B. A. Uzoukwu, “Synthesis, UV-Vis, IR and NMR Spectral Studies of Mn(II) and Zn(II) Complexes of 1-Phenyl- 3-Methyl-4-(Benzoyl) Pyrazdone-5,” Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, Vol. 49, No. 2, 1993, pp. 281-282. doi:10.1016/0584-8539(93)80182-A

[19]   E. C. Okafor, “Structure of 1-Phenyl-3-Methyl-4-Ben- zoylprazole-5-One and Its Derivatives (NMR, IR, etc.),” Zeitschrift für Naturforschung, Vol. 85B, 1980, pp 1019- 1023.

 
 
Top