磺酸树脂Amberlyst 70催化环己酮肟液相重排制己内酰胺  

LIQUID PHASE REARRANGEMENT OF CYCLOHEXANONE OXIME TOε-CAPROLACTAM CATALYZED BY AMBERLYST 70 SULFOACID RESIN

作　　者：刘贤响[1] 毛丽秋[1] 徐琼[1] 钟文周[1] 尹笃林[1] 

机构地区：[1]石化材料湖南省工程实验室,资源精细化与先进材料湖南省高校重点实验室,湖南师范大学化学化工学院,湖南长沙410081

出　　处：《精细石油化工》2011年第4期1-4,共4页Speciality Petrochemicals

基　　金：国家自然科学基金资助项目(20976043,21003043);湖南省自然科学基金资助项目(09JJ5006);湖南省高校创新平台开放基金资助项目(09K027);湖南师范大学青年基金资助项目(21101)

摘　　要：实验以大孔氢型耐高温磺酸树脂Amberlyst 70为催化剂,环己酮肟液相重排制己内酰胺。考察了反应温度、反应时间、催化剂用量等因素对重排反应的影响。实验结果表明:常压下、温度为130℃、m(环己酮肟):m(催化剂)=1.13:1,反应6 h,环己酮肟转化率可达99.4%,己内酰胺的选择性可达90.2%。该催化剂催化效率高,经再生可恢复较好的活性,便于重复利用。Preparing e-caprolactam by liquid-phase Beckmann rearrangement of cyclohexanone oxime isattractive in current study. The catalytic performance of Amherlyst 70 sulfoacid resin catalyst in the rearrangement was researched. Various reaction parameters such as reaction time, reaction temperature, amounts of catalyst and other factors influencing the rearrangement were discussed. The optimum conditions were： temperature 130 ℃, the mass ratio of reactants and catalyst 1.13 ： 1 and reaction time 6 h. Under these conditions, the conversion of cyclohexanone oxime and the selectivity of ε- caprolactam were above 99.4% and 90.2%, respectively. Results of further experiments showed that Amberlyst 70 had high catalytic activity to liquid-phase Beckmann rearrangement of cyclohexanone oxime and the deactivated catalyst could be was easily regenerated.

关 键 词：环己酮肟 重排 磺酸树脂 催化 己内酰胺 

分 类 号：TQ426.94[化学工程] TQ225.261