Extraction of 2-chloroethanol from aqueous solutions by trioctylamine

Qi Wang; Jiquan Liu; Lin Jiang

Journal of Industrial and Engineering Chemistry, Vol.18, No.4, 1267-1271, July, 2012

DOI10.1016/j.jiec.2012.01.022 Export Citation

Extraction of 2-chloroethanol from aqueous solutions by trioctylamine

Qi Wang^†, Jiquan Liu¹, and Lin Jiang

Solid Waste Pollution Control Division, Beijing Municipal Research Institute of Environmental Protection, No.59 BeiYingFang Zhongjie, Beijing 100037, PR China
¹College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266042, PR China

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The trioctylamine (TOA) with kerosene as a diluent was used to separate 2-chloroethanol from aqueous hydrochloride acid solution. The stoichiometry of complex data was studied with infrared spectroscopic and the result shows that the ratio of 2-chloroethanol to amine in the complex was 1:2. The equilibrium constant was assumed to be 4.05 × 105. Effects of temperature, equilibrium pH, TOA concentration, organic phase to aqueous (O/A) phase ratio and contact time on extraction yield of 2-chloroethanol were investigated. The results show that extraction yield can reach 58.2% under the optimum conditions.

Keywords:Extraction;Trioctylamine;Hydrochloric acid;2-Chloroethanol

[References]

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Chmutova MK, Myasoedov BF, Spivakov BY, Kochetkova NE, Zolotov YA, Polyhedron., 35, 1317 (1973)
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Sato T, Sato K, Hydrometallurgy., 25, 281 (1990)
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[Referenced By]

[1] Sanuki S, Jyumonji M, Majima H, Hydrometallurgy., 55, 119 (2000)

[2] White DA, Hydrometallurgy., 36, 161 (1994)

[3] Chmutova MK, Myasoedov BF, Spivakov BY, Kochetkova NE, Zolotov YA, Polyhedron., 35, 1317 (1973)

[4] Marinova M, Kyuchoukov G, Albet J, Molinier J, Malmary G, Sep. Purif. Technol., 37(3), 199 (2004)

[5] Hong YK, Hong WH, Sep. Purif. Technol., 42(2), 151 (2005)

[6] Shi YH, Sun HY, Lu DM, Le QH, Chen DX, Zhou YC, Sep. Purif. Technol., 49(1), 20 (2006)

[7] Kirsch T, Maurer G, Ind. Eng. Chem. Res., 35(5), 1722 (1996)

[8] Gaikwad AG, Talanta., 63, 917 (2004)

[9] Juang RS, Huang RH, Chem. Eng. J., 65, 47 (1997)

[10] Matsumoto M, Otono T, Kondo K, Sep. Purif. Technol., 24(1-2), 337 (2001)

[11] Wionczyk B, Apostoluk W, Hydrometallurgy., 78, 116 (2005)

[12] Kejun L, Yen WT, Shibayama A, Miyazaki T, Fujita T, Hydrometallurgy., 73, 41 (2004)

[13] Sato T, Sato K, Hydrometallurgy., 37, 253 (1995)

[14] Sato T, Sato K, Hydrometallurgy., 25, 281 (1990)

[15] Matsumoto M, Ueba K, Kondo K, Sep. Purif. Technol., 43(3), 269 (2005)

[16] Gonzalez-Munoz MJ, Luque S, Alvarez JR, Coca J, Sep. Purif. Technol., 51(1), 18 (2006)

[17] Gerhardt NI, Palant AA, Dungan SR, Hydrometallurgy., 55, 1 (2000)

[18] Durig JR, Zhou L, Gounev TK, Klaeboe P, Guirgis GA, Wang LF, J. Mol. Struct., 385, 7 (1997)

[19] Simons WW, The Saddler Handbook of Infrared Spectra, Bio-Rad Laboratories, Inc., Informatics Division, California (2004)

[20] Kozak M, Domka L, J. Phys. Chem. Solids., 65, 441 (2004)