Integration of Multiple Side-Draw Distillation and Continuous Crystallization for Refining of High-Purity p- and o-Nitrochlorobenzene

Qun Qun Huang; Jun Lin; Zheng Gui Gu

doi:10.4028/www.scientific.net/AMR.233-235.926

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 233-235Integration of Multiple Side-Draw Distillation and...

Integration of Multiple Side-Draw Distillation and Continuous Crystallization for Refining of High-Purity p- and o-Nitrochlorobenzene

Abstract:

Methods of separating mixed isomers of nitrochlorobenzene (NCB) were reviewed and analyzed in this paper, A new integrated technology including multiple side-draw distillation and continuous crystallization was raised for refining of high-purity p-nitrochlorobenzene(p-NCB) and o-nitrochlorobenzene(o-NCB) from the NCB mixture. Eventually, over 99% purity of p-NCB and o-NCB can be obtained, and the comprehensive yield is higher than 90%. Compared with the traditional process, the new technology has obvious advantages due to its simple process, high separation efficiency, and low energy consumption.

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Periodical:

Advanced Materials Research (Volumes 233-235)

Pages:

926-929

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.233-235.926

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Online since:

May 2011

Authors:

Qun Qun Huang, Jun Lin, Zheng Gui Gu

Keywords:

Continuous Crystallisation, Multiple Side-Draw Distillation, O-Nitrochlorobenzene, p-Nitrochlorobenzene

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