V-Ti-O-Mo催化剂气-固相催化氨氧化合成2-氰基吡啶的研究
Study on V-Ti-O-Mo catalyst for catalytic ammoxidation to synthesize
采用混合法制备了含有五氧化二钒（V2O5）、二氧化钛（TiO2）和三氧化钼（MoO3）的三元催化剂，用于连续气固相氨氧化2-甲基吡啶合成2-氰基吡啶。实验结果表明，助催化组分三氧化钼（MoO3）能提高2-氰基吡啶的选择性，当催化剂组成为8.91wt.%V2O5、85.84wt.%TiO2和5.25wt.%MoO3时2-氰基吡啶的选择性最好。基于改进后的V-Ti-O-Mo催化剂，对2-甲基吡啶的氨氧化反应工艺条件进行了优化，当反应温度380℃、物料配比1:5:3.3:22（2-甲基吡啶/氨气/水/空气，摩尔比）、空速0.15 h-1时，2-氰基吡啶收率达到最优值85.6%。
he catalyst containing V2O5, TiO2 and MoO3 was prepared to be used in continuous gas-solid phase to synthesize 2-cyanopyridine by ammoxidation of 2-picoline. Experimental results show that the co-catalyst MoO3 can improve the selectivity of 2-cyanopyridine, and the best catalyst composition is 8.91wt.%V2O5, 85.84wt.%TiO2 and 5.25wt.%MoO3 to get the best selectivity. Based on improved V-Ti-O-Mo catalyst, the reaction conditions of ammoxidation of 2-cyanopyridine are optimized. When the reaction temperature is 380℃, material ratio is 1: 5: 3.3: 22 (2-methylpyridine / ammonia / water / air, molar ratio) and space velocity is 0.15 h-1, the best yield of 2-cyanopyridine is 85.6%.
魏梦怡、钱超、陈新志
精细化学工业
2-甲基吡啶2-氰基吡啶氨氧化V-Ti-O-Mo催化剂
2-methylpyridine 2-cyanopyridine ammonia oxidation V-Ti-O-Mo catalyst
魏梦怡,钱超,陈新志.V-Ti-O-Mo催化剂气-固相催化氨氧化合成2-氰基吡啶的研究[EB/OL].(2016-05-03)[2025-08-18].http://www.paper.edu.cn/releasepaper/content/201605-44.点此复制
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