Extracting 1,3-dimethylpyrazole and 1,5-dimethylpyrazole from binary industrial mixtures

The liquid–vapor phase equilibria in binary systems containing 1,3-dimethylpyrazole and 1,5-dimethylpyrazole are investigated. On the basis of the results, the relative volatility, the minimum and working numbers of theoretical plates, and the minimum and working reflux ratios are calculated, with a...

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Veröffentlicht in:	Coke and chemistry (New York, N.Y.) N.Y.), 2015-07, Vol.58 (7), p.275-278
Hauptverfasser:	Rusak, V. V., Zaretsky, M. I., Semenov, V. V., Chartov, E. M., Ugrak, B. I., Nysenko, Z. N.
Format:	Artikel
Sprache:	eng
Schlagworte:	Chemistry Chemistry and Materials Science Industrial Chemistry/Chemical Engineering
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	The liquid–vapor phase equilibria in binary systems containing 1,3-dimethylpyrazole and 1,5-dimethylpyrazole are investigated. On the basis of the results, the relative volatility, the minimum and working numbers of theoretical plates, and the minimum and working reflux ratios are calculated, with a view to the production of individual isomers (>99% purity). The results are experimentally confirmed. It proves possible to separate 1,3-dimethylpyrazole and 1,5-dimethylpyrazole by rectification.
ISSN:	1068-364X 1934-8398
DOI:	10.3103/S1068364X15070078