Kinetics of chromium(iii) transport through the double-carrier supported liquid membrane

• Autorzy: Religa P. , Rajewski J. , Lobodzin P.

Identyfikatory

DOI

10.5277/ppmp160108

• Języki publikacji: EN

Abstrakty

EN

The kinetics of chromium(III) transport through a supported liquid membrane containing both a di-(2-ethylhexyl) phosphoric acid (D2EHPA) and bis-(2,4,4-trimethylpentyl) phosphinic acid (Cyanex272) as an ions carrier was investigated. It was found that under a characteristic concentration of the carriers into the organic phase membrane provides much higher efficiency than the membrane containing only one of the extractants. In the studied system the optimal carrier concentration in the membrane is 0.16 mol/dm3 and 0.9 mol/dm3 for Cyanex272 and D2EHPA, respectively. Moreover, the authors indicate that only D2EHPA can act as an individual carrier in the membrane. In the case of Cyanex272 the stable structures with chromium(III) ions are formed in the membrane, which prevents effective re-extraction. Additionally, intensive stirring of an aqueous phase in another factor that has a positive influence on the transport kinetics in the double-carrier membrane. Increasing a stirring rate up to 1200 rpm shortens the process time and allows total re-extraction of chromium.

Słowa kluczowe

EN

SLM; chromium; D2EHPA; Cyanex27; separation; membrane

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2016
• Tom: Vol. 52, iss. 1
• Strony: 87--97
• Opis fizyczny: Bibliogr. 16 poz., rys., tab.

Twórcy

autor

Religa P.

• Department of Environmental Protection, Kazimierz Pulaski University of Technology and Humanities in Radom, Chrobrego 27, Radom, Poland

autor

Rajewski J.

• Faculty of Chemical and Process Engineering, Warsaw University of Technology, Warynskiego 1, Warsaw, Poland

autor

Lobodzin P.

• Institute of Sustainable Technology – National Research Institute in Radom, Pulaskiego 6/10, Radom, Poland

Bibliografia

• AZZOUG S., AROUS O., KERDJOUDJ H., 2014, Metallic ions extraction and transport in supported liquid membrane using organo-phosphoric compounds as mobile, J. Environ. Chem. Eng., 2, 154–162.
• BISWAS R.K., SINGHA H.P., 2006, Purified Cyanex 272: its interfacial adsorption and extraction characteristics towards iron(III), Hydromet., 82, 63–74.
• BISWAS S., PATHAK, P. N., ROY S. B., 2012, Carrier facilitated transport of uranium across supported liquid membrane using dinonyl-phenyl phosphoric acid and its mixture with neutral donors, Desal., 290, 74–82.
• DARVISHI D., HAGHSHENAS D.F., KESHAVARZ A.E., SADRNEZHAAD S.K., HALALI M., 2005, Synergistic effect of Cyanex 272 and Cyanex 302 on separation of cobalt and nickel by D2EHPA, Hydromet., 77, 227–238.
• GAWRONSKI R., RELIGA P., 2007, Transport mechanism of chromium(III) through the unmixed bulk liquid membrane containing dinonylnaphthalenesulfonic acid as a carrier, J. Memb. Sci., 289, 187–190.
• IBERHAN L., WISNIEWSKI M., 2002, Extraction of arsenic(III) and arsenic(V) with Cyanex 925, Cyanex 301 and their mixtures, Hydromet., 63, 23–30.
• JIAN-HONG L., JUN L., ZHAO-PENG Y., XUE-FENG L., 2013, Removal of chromium(III) from aqueous waste solution by predispersed solvent extraction, Transact. Nonferr. Met. Soc. China, 23, 524–529.
• KONCZYK J., KOZLOWSKI C., WALKOWIAK W., 2010, Removal of chromium(III) from acidic aqueous solution by polimer inclusion membranes with D2EHPA and Aliquat 336, Desal., 263, 211–216.
• KUNDU K., BIDYUT K.P., 2013, Physicochemical investigation of mixed surfactant reverse micelles: Water solubilization and conductometric studies, Colloids Surf. A, 433, 154–165.
• LANAGAN M.D., IBANA D.C., 2003, The solvent extraction and stripping of chromium with Cyanex 272, Miner. Eng., 16, 237–245.
• OCHROMOWICZ K., APOSTOLUK W., 2010, Modelling of carrier mediatel transport of Cr(III) in the SLM system with D2EHPA, Sep. Pur. Technol., 72, 112–117.
• RELIGA P., GAWRONSKI R., GIERYCZ P., 2009, Kinetics of chromium(III) transport through a liquid membrane containing DNNSA as a carrier, Int. J. Mol. Sci., 10, 964–975.
• RELIGA P., RAJEWSKI J., GIERYCZ P., ŚWIETLIK R., 2014, Supported liquid membrane system for Cr(III) separation from Cr(III)/Cr(VI) mixtures, J. Water Sci.Technol., 69, 2476–2481.
• SARANGI K., REDDY B.R., DAS R.P., 1999, Extraction studies of cobalt(II) and nickel(II) from chloride solutions using Na-Cyanex 272. Separation of Co(II)/Ni(II) by the sodium salts of D2EHPA, PC88A and Cyanex 272 and their mixtures, Hydromet., 52, 253–265.
• WOJCIECHOWSKI K., KUCHAREK M., BUFFLE M., 2008, Mechanism of Cu(II) transport through permeation liquid membranes using azacrown ether and fatty acid as carrier, J. Membr. Sci., 314, 152–162.
• XU Z., 2009, Microcalorimetric study on the critical micelle concentration and thermodynamic functions of di(2-ethyl-hexyl) phosphate salts in organic solvent + sec-octyl alcohol systems at 298.15 K, J. Chem. Eng. Data, 54, 2827–2830.

Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.