作　　者： ; ; ; ; ; ;

机构地区： 广东工业大学轻工化工学院

出　　处： 《现代化工》 2005年第12期28-31,共4页

摘　　要： 采用金属盐溶液浸渍的方法对NaZSM-5分子筛进行改性,考察了ZSM-5分子筛对γ-丁内酯与乙醇胺之间气相反应合成N-羟乙基吡咯烷酮(NHP)的催化性能.研究表明ZSM-5分子筛是目标反应潜在的活性催化剂,其中CuZSM-5具有较高的催化活性,NHP收率达到30%以上.考察了原料组成、接触时间、反应温度、催化剂焙烧温度及颗粒大小等对反应的影响,确定了合适的反应条件为:n(乙醇胺):n(γ-丁内酯)=3～4,[p(乙醇胺)+p(y-丁内酯)]:p(N2)=1,接触时间25～32g·h/mol,反应温度250～270℃,催化剂粒径100～120目. NaZSM-5 zeolites were modified by impregnation with metal nitrate and their catalytic properties for gas phase reaction of γ-butyrolactone and ethanolamine to give intermediate N-hydroxylethyl pyrrolidone （NHP）were studied. It＇s suggested that ZSM-5 zeolites are probably active catalysts for the target reaction, and among which, CuZSM-5 shows high activity with an NHP yield of above 30% . Influences of main conditions such as materials gradient, contact time, reaction temperature, baking temperature and particle size of catalysts on the target reaction were discussed and explained. Optimized reaction conditions are as follows：3 - 4 of ethanolamine/γ-butyrolactone molar ratio, [ p （ethanolaralne） ＋ p （γ-butyrolactone）]： p （N2） = 1,25 - 32 g· h/mol of contact time,250 - 270℃ of reaction temperature, with about 500℃ of baking temperature and 100 - 120μm of catalyst particle size.

关 键 词： 丁内酯 分子筛 气相反应 羟乙基吡咯烷酮

领　　域： [理学] [理学]