Preliminary Study of Refined Naphthalene Production with Fractional Crystallization

Abstract:

In order to obtain optimized operating condition for industry naphthalene purification using fractional crystallizing method, the influence of heating rate, crystallizing times, holding time and cooling rate on the yield and purity of industrial naphthalene were studied. The industrial naphthalene from AISC Chemical General tar workshop was used as starting material in the study. The results show that the yield and purity of refined naphthalene can achieve 94.2％ and 99.30％ respectively, when the heating rate is 1.2°C/h, the cooling rate is 3°C/h, holding time is 5 hours and the crystallizing times is 3. The result of present study provides a theoretical foundation for the actual production and technology improvement of naphthalene purification.

• Periodical: Advanced Materials Research (Volumes 554-556)
• Pages: 51-55
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.554-556.51
• Online since: July 2012
• Authors: Gui Ying Xu, Zhan Xian Gao, Jian Zhang, Jin Feng Bai
• Keywords: Crystallization Point, Fractional Crystallization, Industrial Naphthalene, Refined Naphthalene

References

[1] Pinhui Li, Yuejin Liu. "Optimization of Sulflonation Conditions for Naphthalene Superplasticizer". Liaoning Chemical Industry, 2007,36(9):579－581. "In Chinese"

[2] Wei Zheng. "Production and market analysis of refined naphthalene. Chemical Engineering and Equipment."2010,12:142-94. "In Chinese".

[3] Huanyu Wang, Kangru Yuan, Renyuan Wang."Calculation of production capacity for refined naphthalene fractional crystallization." 2010, 9 77-79,81. "In Chinese".

[4] Rongjiang Xu, Bo Du. "The Production of petronaphthalene with fractional crystallization (J)."SCIENCE INFORMATION. 2007,1:25－26. "In Chinese".

[5] Junqiu He. "The generative prospect of Chinese refined naphthalene." Liaoning Chemical Industry.1991,(6),29-31. "In Chinese".

[6] Arkenbout GJ,A Van Kuijk, Smit W M.TNO crystallization[C]//The 4th International congress column for continuous fractional in Scandinavia on Chemical Engineering,1977.

[7] Junxian Yun, Ziqiu Shen. "Crystal Layer Growth and Impurity Inclusion in Layer-Based Melt Crystallization Processes." PETROCHEMICAL TECHNOLOGY.2002,31(10):861－865. "In Chinese".

[8] ,9] Qian-xiang Zhang. "The Analysis of Refined Naphthalene Quality." Wusco Technology. 2000,38（4）.30. "In Chinese".

[10] Matsuoka M ,Fukuda T, Takagi Y, et al."Purification of organic solid solutions by melt crystallization: Comparison between layer and suspended crystallization (J)." Journal of Crystal Growth, 1966, 166(1): 1035-1039.

DOI: 10.1016/0022-0248(95)00481-5

[11] Matsuoka M , Sumitani A. "Rate of organic solid solution crystals in sweating operations (J)." Journal of Chemical Engineering of Japen,1988,21(1):6-10.

[12] Matsuoka M ,Fukuda T, Takagi Y, et al. "Purification by swaiting of organic solid solution by layer and suspension type melt crystallization operations (J)." Journal of Chemical Engineering of Japen,1995,28(5):562-569.

DOI: 10.1252/jcej.28.562