Synthesis of 2-Methylpyrazine by Ethylenediamine and Propylene Oxide

化学工业与工程

Chemcial Industry and Engineering

2003, Vol. 20

Issue (5) :266-269 DOI:

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Synthesis of 2-Methylpyrazine by Ethylenediamine and Propylene Oxide

FENG Ya-qing, WU Peng,ZHOU Li-shan,MENG Shu-xian(School of Chemical Engineering, Tianjin University;

(School of Chemical Engineering, Tianjin University;

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Abstract 2-Methylpyrazine has been synthesized by gas-solid contact catalysis of ethylene diamine with propylene oxide in fixed-bed reactor.The optimum conditions are obtained.The preheating temperature is 260℃.The reaction temperature is 380℃.The molar ratio of propylene oxide and ethylene diamine is 12∶1 and its flow rate is 6mL/h.The flow rates of hydrogen and nitrogen are both 4L/h.The yield of 2-methylpyrazine is above 89%.After seperating,the purified of 2-methylpyrazine is above 99%.

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Received 2003-09-15; published 2003-09-15

Cite this article:

FENG Ya-qing, WU Peng,ZHOU Li-shan,MENG Shu-xian.Synthesis of 2-Methylpyrazine by Ethylenediamine and Propylene Oxide[J] Chemcial Industry and Engineering, 2003,V20(5): 266-269