【摘要】 对 3 甲基吡啶经氨氧化法制备重要的精细化学品烟腈进行了研究 ,初步筛选到高效实用的Z697号催化剂 .考察了催化剂组成和反应条件对 3 甲基吡啶的转化率、烟腈的产率 (摩尔 )及选择性、反应产物的组分及含量的影响 .在合适的条件下 ,3 甲基吡啶转化率为 10 0 % ,烟腈的产率为 85 .2 % ,产物纯度大于 99% ,并经元素分析、红外光谱和核磁共振谱得到证实更多还原

【Abstract】 Ammoxidation of 3-picoline to nicotinonitrile on vanadium phosphate catalysts has been investigated. Based on appraising tests, the efficient catalysts have been found. The influence of the components of the catalyst, reaction temperature, the ratio of air, the ratio of ammonia and ratio of water on the conversion of 3-picoline, the molar yield and selectivity of nicotinonitrile have been researched respectively. Using catalyst Z697, on optimum conditions the highest conversion is 100%, molar yield is 85.2%. The nicotinonitrile obtained is white needle crystal with the purity higher than 99%.更多还原