MoVPO型催化剂上氨氧化合成2-氰基吡嗪

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MoVPO型催化剂上氨氧化合成2-氰基吡嗪

洪春; 李勇

Department of Chemical and Biochemical Engineering , Zhejiang University, Hangzhou 310027, China

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2006-10-28 发布日期:2006-10-28
通讯作者: 洪春

2-Cyanopyrazine Prepared from 2-Methylpyrazine by Catalytic Ammoxidation on MoVPO Catalyst

HONGChun; LIYong

Department of Chemical and Biochemical Engineering , Zhejiang University, Hangzhou 310027, China

Received:1900-01-01 Revised:1900-01-01 Online:2006-10-28 Published:2006-10-28
Contact: HONG Chun

摘要/Abstract

摘要： The mechanism of 2-cyanopyrazine prepared from 2-methylpyrazine (2-MP) by catalytic ammoxidation has been explained by the theory of appropriate structure of group. A new catalyst of MoVPO was developed. The effects of catalyst promoter phosphorus and supports were investigated. The catalyst containing P, V and Mo in molar ratio of 1.4︰1︰0.02 and supported on activated alumina and prepared by impregnation method exhibits good activity and selectivity. Reaction factors such as reaction temperature, space velocity, feed composition and service life of catalyst were investigated. Optimum reaction conditions (the volume space velocity of 0.2h－1, the reaction temperature of 380 ℃ and molar ratio of 1︰7.8︰8︰8 for 2-MP, water, oxygen and ammonia) were obtained. Selec-tivity of 93% and yield of 86% could be achieved under these conditions.

关键词: catalyst of MoVPO;ammoxidation;theory of appropriate structure of group;2-methylpyrazine;2-cyanopyrazine

Abstract: The mechanism of 2-cyanopyrazine prepared from 2-methylpyrazine (2-MP) by catalytic ammoxidation has been explained by the theory of appropriate structure of group. A new catalyst of MoVPO was developed. The effects of catalyst promoter phosphorus and supports were investigated. The catalyst containing P, V and Mo in molar ratio of 1.4︰1︰0.02 and supported on activated alumina and prepared by impregnation method exhibits good activity and selectivity. Reaction factors such as reaction temperature, space velocity, feed composition and service life of catalyst were investigated. Optimum reaction conditions (the volume space velocity of 0.2h－1, the reaction temperature of 380 ℃ and molar ratio of 1︰7.8︰8︰8 for 2-MP, water, oxygen and ammonia) were obtained. Selec-tivity of 93% and yield of 86% could be achieved under these conditions.

Key words: catalyst of MoVPO, ammoxidation, theory of appropriate structure of group, 2-methylpyrazine, 2-cyanopyrazine

洪春, 李勇. MoVPO型催化剂上氨氧化合成2-氰基吡嗪[J]. CIESC Journal.

HONGChun, LIYong. 2-Cyanopyrazine Prepared from 2-Methylpyrazine by Catalytic Ammoxidation on MoVPO Catalyst
[J]. .

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MoVPO型催化剂上氨氧化合成2-氰基吡嗪

2-Cyanopyrazine Prepared from 2-Methylpyrazine by Catalytic Ammoxidation on MoVPO Catalyst

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