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Received August 23, 2014
Accepted November 28, 2014
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Synergistic extraction and separation of Dysprosium and Europium by supported liquid membrane
1Center for Separation Processes Modeling and Nano-computations, School of Chemical Engineering, College of Engineering, University of Tehran, 11365-4563, Tehran, Iran 2Nuclear Fuel Cycle Research School, Nuclear Science and Technology Research Institute, 14155-1339, Tehran, Iran 3, Iran 4Research Centre for Membrane Separation Processes, Faculty of Chemical Engineering, Iran University of Science and Technology (IUST), 13114-16846 Narmak, Tehran, Iran
hoab@ut.ac.ir
Korean Journal of Chemical Engineering, August 2015, 32(8), 1642-1648(7), 10.1007/s11814-014-0350-6
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Abstract
Synergistic extraction and separation of Dysprosium (Dy) and Europium (Eu) via supported liquid membrane (SLM) were investigated using mixture of di-2-ethylhexyl phosphoric acid (D2EHPA) and Bis (2,4,4-trimethylpentyl) phosphinic acid (Cyanex272). The results showed that separation of Dy and Eu was highly dependent on the pH of feed solution. Dy can be extracted more than Eu, because the equilibrium constant for Dy using the mixture of D2EHPA and Cyanex272 was greater than that for Eu. Various parameters were optimized to achieve maximum separation factor, namely feed phase pH, carrier concentration and stripping phase concentration. The membrane was stable at six cycles of operation.
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Prakorn R, Ura P, Korean J. Chem. Eng., 20(4), 724 (2003)
Darvishi D, Haghshenas DF, Alamdari EK, Sadrnezhaad SK, Halali M, Hydrometallurgy, 77, 227 (2005)
Iversen SB, Bhatia VK, Damjohansen K, Jonsson G, J. Membr. Sci., 130(1-2), 205 (1997)
van de Wiel HJ, Determination of Elements by ICP-AES and ICPMS, National Institute of Public Health and the Environment (RIVM), Bilthoven, Netherlands (2003).
Sun X, Zhao J, Meng S, Li D, Anal. Chim. Acta, 533, 83 (2005)
Swain B, Jeong J, Lee JC, Lee GH, J. Membr. Sci., 288(1-2), 139 (2007)
Huheey JE, 1992. Acid-Base Chemistry, Inorganic Chemistry: Principles of Structure and Reactivity, Harper & Row, New York (1992).
Peydayesh M, Esfandyari GR, Mohammadi T, Alamdari EK, Chem. Pap., 67, 389 (2013)
Wilke CR, Chang P, AIChE J., 1, 264 (1955)
Ma M, He D, Wang Q, Xie Q, Talanta, 55, 1109 (2001)
Danesi PR, Horwitz EP, Vandegrift GF, Chiarizia R, Sep. Sci. Technol., 16, 201 (1981)
Kazemi P, Peydayesh M, Bandegi A, Mohammadi T, Bakhtiari O, Chem. Eng. Res. Des., 92(2), 375 (2014)
Neplenbroek AM, Bargeman D, Smolders CA, Desalination, 79, 303 (1990)
Yang XJ, Fane AG, J. Membr. Sci., 156(2), 251 (1999)
Leepipatpiboon N, Pancharoen U, Ramakul P, Korean J. Chem. Eng., 30(1), 194 (2013)
