摘要
在反应温度为170~180℃、压力为1.5 MPa时,在钴盐、锰盐、溴化物和自由基引发剂存在下,由氧气氧化3-甲基吡啶制备烟酸,产率为81.3%;以乙酸和芳香性卤代烃的混合物做溶剂时,对不锈钢反应釜没有腐蚀作用,其中乙酸的含量保持在15%~20%。
Nicotinic acid was prepared by oxidation of 3-methylpyridine with dioxygen in the presence of cobalt acetate, manganese acetate, bromide and radical initiator under pressure of 1.5 MPa and at 170 - 180℃ The yield of the nicotinic acid was up to 81.3%. The solvent of a mixture of aromatic halide and 15%- 20% acetic acid was not corrosive to the equipment.
出处
《精细石油化工》
CAS
CSCD
北大核心
2006年第3期10-13,共4页
Speciality Petrochemicals
基金
北京市教育委员会科技发展项目(KM200310028111)
关键词
3-甲基吡啶
液相催化氧化
烟酸
3-methylpyridine
liquid phase catalytic oxidation
nicotinic acid