Purification of Naphthalene from Naphthalene and 2-methylnaphthalene System by Layer MelMelt-Crystallization 


Vol. 12,  No. 3, pp. 157-164, Sep.  2006


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  Abstract

In order to purify 2-methylnaphthalene as main impurity included in naphthalene, SLE (solid-liquid equilibria) on two components system including naphthalene and 2-methylnaphthalene were measured and a layered melt crystallization has been studied. SLE in the present system is shown a simple eutectic mixture and the experimental results using DSC method is similar to the static method. Purity and yield of naphthalene in crystal depended mainly on the cooling rate: Increasing cooling rate, the purity of naphthalene in crystal increase, whereas the yield of that decrease. The effective distribution coefficient (Keff) as the degree of impurity removal was observed to decrease with decreasing of cooling rate. Therefore, the purity of naphthalene by melt crystallization can be enhanced to 5~7%.

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  Cite this article

[IEEE Style]

K. JY, K. CU, P. SJ, "Purification of Naphthalene from Naphthalene and 2-methylnaphthalene System by Layer MelMelt-Crystallization," Clean Technology, vol. 12, no. 3, pp. 157-164, 2006. DOI: .

[ACM Style]

Koh JY, Kim CU, and Park SJ. 2006. Purification of Naphthalene from Naphthalene and 2-methylnaphthalene System by Layer MelMelt-Crystallization. Clean Technology, 12, 3, (2006), 157-164. DOI: .

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