Cover Image

Liquid-liquid separation of Cd (II) from Cu-sulfide cake prepared from sulfate solution of Abu-Thor ore material, Southwestern, Sinai, Egypt

Elham Awny


The present work is concerned with the subsequent liquid-liquid separation of Cu, Zn, and Cd compounds from Cu- sulfide cake prepared from the sulfate solution of Abu-Thor Gibbsite-bearing shale ore material. This ore was found assaying 0.014% of Cd, 0.5% of Cu, and 0.55% of Zn as the elements of interest, by using 25% of H2SO4 solution at a solid/liquid ratio of 1/3 reaction time of 90 min at a temperature of 80 ◦C. About 96.5% of Cu (II), 99.3% of Cd (II), and 95.6% of Zn (II), respectively, were dissolved. After filtration, the prepared sulfate solution was treated with a suitable weight of Na2S to prepare the working Cu-sulfide cake, which was then wholly re-dissolved in 10% of H2SO4 solution to prepare the working sulfate solution, which contained the elements of interest. This solution was gone out to the organic solvent process for complete separating between the Cu (II), Zn (II) ions in the organic phase, and Cd (II) ions in the aqueous phase. The effective extraction parameters such as pH value, LIX concentration, contact time, and organic/aqueous ratio were studied. The obtained data cleared that the pH value of 2.5 was found effective for separating Cd (II) in the aqueous phase and both Zn (II) and Cu (II) in the organic phase. Where Cd (II) ions were precipitated as CdS using Na2S solution at pH 0.89, on the other side, both Zn (II) and Cu (II) were completely separated in the stripping process using Na2CO3 solution.

Full Text:



- M.W. El Reedy, M.A. Mahdy, I.E. El Aassy, G.A. Dabbour, Geochemistry studies of some uraniferous sedimentary rock varieties of West Central Sinai, Egypt, 4thConf. Nuc. Sci. and Appl., 1988, 1, 224-229.

- A. Abdel Monem, I.E. El Aassy, O. Hegab, I. El Fayoumy, N. El Agami, Gibbsite, uranium and copper mineralizations, Um Bogma area, Southwestern Sinai, Egypt, Sedim. of Egypt, 1997, 5, 117-132.

- H.I. Mira, S.K. Sami, Remobilization of U and Cu through karstification processes; a case study in Abu Thor locality, Um Bogma region, West Central Sinai, Egypt, Surv. Egypt, 2009, 31,


- G.M. Abd El Wahab, M.M. Amin, S.K. Aita, Bioleaching of Uranium - bearing material from Abu Thor area, West Central Sinai, Egypt for recovering U, Arab Journal of Nuclear Sciences and Applications, 2012, 45, 169-178.

- D. Suhendra, K.P. Yeen, M.J. Haron, S. Silong, M. Basri, W.M.Z.W. and Yunus, Copper ion extraction by a mixture of hydroxamic fatty acids synthesized from commercial palm olein, solvent Extr. Ion. Exch., 2005, 23, 713-723.

- S. Feizollahi, A. Azizi, Solvent extraction of copper from an industrial sulfate liquor using Chemorex CP-150, Journal of Mining & Environment, 2018, 4, 905-916.

- A. Kumar, M. Jha, V. Kumar, L. Jae-Chun, Solvent Extraction: A Potential Tool For The Separation Of Metals From Leach Liquor Of Electronic Scraps, Proceedings of the XI International Seminar on Mineral Processing Technology, 2010, 11, 905-912.

- J. Lu, D. Dreisinger, Solvent extraction of Cu from chloride solution II: Cuprous oxidation by oxygen coupled with simultaneous cupric solvent extraction, Hydrometallurgy, 2013,138, 48-53.

- M.C. Ruiz, I. González, V. Rodriguez alerio, R. Padilla, Solvent Extraction of Copper from Sulfate–Chloride Solutions Using LIX 84-IC and LIX 860-IC, Mineral Processing and Extractive Metallurgy Review, 2021, 42, 1-8.

- S. Keber, L. Brukner, T. Elwert, T. Kuhn, Concept of hydrometallurgical processing of a copper-cobalt nickel alloy made from manganese nodules, Chemie Ingenieur Technik, 2020, 92, 379-386.

- M.C. Ruiz, J. Risso, J. Segue, R. Padilla, Solvent extraction of copper from sulfate-chloride solutions using mixed and modified hydroxy oxime extractants, Minerals Engineering, 2020, 146, 106-109.

- U.B. Barache, A.B. Shaikh, T.N. Lokhande, G.S. Kamble, M.A. Anuse, S.H. Gaikwad, An efficient, cost-effective, sensing behavior liquid-liquid extraction and spectrophotometric determination of copper (II) incorporated with 4-(4′-chlorobenzylideneimino)-3-methyl-5-mercapto-1, 2, 4-triazole: Analysis of food samples, leafy vegetables, fertilizers, and environmental samples, Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2018, 189, 443–453.

- R.A. Nalawade, A.M. Nalawade, G.S. Kamble, M.A. Anuse, Rapid, synergistic extractive spectrophotometric determination of copper(II) by using sensitive chromogenic reagent N'', N'''-bis [(E)-(4-fluorophenyl) methylidene] thiocarbono hydrazide, Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2015, 146, 297-306.

- M.A. Nalawade, A.R. Nalawade, R.V. Shejwal, G.S. Kamble, Development of a reliable analytical method for the precise extractive spectrophotometric determination of cadmium(II) using chromogenic reagent: analysis of real samples, International Journal of Environmental Analytical Chemistry, 2020, 1-20.

- G. S. Kamble, S.S. Joshi, A.N. Kokare, S.B. Zanje, S.S. Kolekar, A.V. Ghule, S.H. Gaikwad, A.M. Anuse, sensing behavior synergistic liquid-liquid extraction and spectrophotometric determination of nickel(II) by using 1-(2’,4’-dinitro aminophenyl)-4,4,6-trimethyl-1,4-dihydro pyrimidine-2-thiol: Analysis of foundry and electroless nickel plating wastewater, Separation Science and Technology, 2017, 52, 2238-3351.

- G.M. Abd El Wahab, H.B. Zeinab, A.S. Aida, I.E. El Aassy, SS.K. eweify, E.G. Awny, Sequential extraction studies of Cu, Cd and U compounds from Gibbsite–bearing shale material, Abu Thor area, Southwestern Sinai, Egypt, Journal of Scientific Research in Science, 2017, 34, 445-461.

- G. Onal, G. Bulut, A. Gul, O. Kangal, K.T. Perek, F. Arslan, Flotation of Aladag oxide Lead-Zinc ores, Minerals Engineering, 2005, 18, 279-282.

- E.M. El Sheikh, G.M. Abd El Wahab, Extraction of nickel and cadmium from scrap rechargeable Nickel-Cadmium Batteries, The 3rd international conference of inorganic chemical industries& mineral resources research division, Cairo, Egypt, 2009.

- Z. Marczenko, Separation and spectrophotometric determination of elements. Second edition, Ellis Harwood, Chichester, UK. 1986.

- M.M.H. Khalil, O.M. El Hussaini, G.M. Abd El Wahab, S.K. Swafy, M.S.M. Khalafalla, Chemical Treatment of El Mossikat Fluorite-Bearing ore Material, Egypt, for Recover of pure Yttrium Oxides, Arab J. Nucl. Sci. Appl., 2018, 89-99.



  • There are currently no refbacks.

Copyright (c) 2021 Mediterranean Journal of Chemistry