Purification of naphthalene from eutectic mixture by continuous column crystallization

Qunsheng Li; Zhengming Yi; Xufeng Sun; Minggao Su

Korean Journal of Chemical Engineering, Vol.27, No.2, 619-623, February, 2010

DOI10.1007/s11814-010-0069-y Export Citation

Purification of naphthalene from eutectic mixture by continuous column crystallization

Qunsheng Li, Zhengming Yi^†, Xufeng Sun, and Minggao Su

College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100021, China

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To obtain highly purified naphthalene, a column crystallizer was employed and operated in the continuous multistage countercurrent fractional mode. The principles and characteristics of the process are introduced. A large amount of experimental work has been done on the crystallization process in a D=50 mm×1,350 mm column. The effects of operation conditions including the composition of feed, reflux ratio, stirring speed and the bed height of crystal on crystallization were systematically studied. The experiments showed that over 99.0% of the purity of product can be easily achieved in such conditions: feed composition among w=85.462-95.894%, reflux ratio among 1.42-4.04, the crystal bed height among 400-900 mm. The purity of product even reaches 99.996% in experiment.

Keywords:Crystallization;Fractional;Continuous;Mass Transfer;Purification

[References]

Arkenbout GJ, Van Kuijk A, Smit WM, Progress in continuous fractional crystallization, Industrial crystallization, Plenum Press, NY, 431 (1976)
Li Q, Zhang Y, Journal of Beijing University of Chemical Technology, 24, 1 (1997)
Li Q, Zhang Y, Journal of Chemical Industry and Engineering (China), 44, 472 (1993)
Arnold PM, Continuous fractional crystallization process, US Patent 2,540,977 (1951)
Moyers, Charles Guthrie, jr. (Union Carbide Australia), Ltd. Crystallization apparatus [P]. Ger. Offen.2207814. 1972-8-31.
Funakoshi K, Uchida H, Takiyama H, Matsuoka M, J. Cryst. Growth, 237, 2251 (2002)
Myasnikov SK, Uteshinsky AD, Kulov NN, Theoretical Foundations of Chemical Engineering, 41, 124 (2007)
Arkenbout GJ, Smit WM, Separation Science, 3, 501 (1968)
Jansens PJ, Vanderham R, Bruinsma OS, Vanrosmalen GM, Matsuoka M, Chem. Eng. Sci., 50(17), 2717 (1995)
Scholz R, Ruemekorf R, Industrial wash column technology, Proc. of the 11th Int. Workshop on Industrial Crystallization (BIWIC2004), September 15-17, Gyeongju, Korea, 116 (2004)
Li Q, Liu H, Wang B, Zhang Y, Trans. IchemE, 81A, 1373 (2003)
Myasnikov SK, Teor. Osn. Khim., 37, 153 (2003)
Zief M, Wilcox WR, Fractional solidification, Marcel Dekker Inc., New York (1967)
Matsuoka M, Ohishi M, Kasama S, J. Chem. Eng. (Japan), 10, 181 (1986)
Kim KJ, Kim JW, Chae JS, Ryu SK, Sep. Sci. Technol., 38(11), 2407 (2003)

[Referenced By]

[1] Arkenbout GJ, Van Kuijk A, Smit WM, Progress in continuous fractional crystallization, Industrial crystallization, Plenum Press, NY, 431 (1976)

[2] Li Q, Zhang Y, Journal of Beijing University of Chemical Technology, 24, 1 (1997)

[3] Li Q, Zhang Y, Journal of Chemical Industry and Engineering (China), 44, 472 (1993)

[4] Arnold PM, Continuous fractional crystallization process, US Patent 2,540,977 (1951)

[5] Moyers, Charles Guthrie, jr. (Union Carbide Australia), Ltd. Crystallization apparatus [P]. Ger. Offen.2207814. 1972-8-31.

[6] Funakoshi K, Uchida H, Takiyama H, Matsuoka M, J. Cryst. Growth, 237, 2251 (2002)

[7] Myasnikov SK, Uteshinsky AD, Kulov NN, Theoretical Foundations of Chemical Engineering, 41, 124 (2007)

[8] Arkenbout GJ, Smit WM, Separation Science, 3, 501 (1968)

[9] Jansens PJ, Vanderham R, Bruinsma OS, Vanrosmalen GM, Matsuoka M, Chem. Eng. Sci., 50(17), 2717 (1995)

[10] Scholz R, Ruemekorf R, Industrial wash column technology, Proc. of the 11th Int. Workshop on Industrial Crystallization (BIWIC2004), September 15-17, Gyeongju, Korea, 116 (2004)

[11] Li Q, Liu H, Wang B, Zhang Y, Trans. IchemE, 81A, 1373 (2003)

[12] Myasnikov SK, Teor. Osn. Khim., 37, 153 (2003)

[13] Zief M, Wilcox WR, Fractional solidification, Marcel Dekker Inc., New York (1967)

[14] Matsuoka M, Ohishi M, Kasama S, J. Chem. Eng. (Japan), 10, 181 (1986)

[15] Kim KJ, Kim JW, Chae JS, Ryu SK, Sep. Sci. Technol., 38(11), 2407 (2003)