聚苯胺负载对甲苯磺酸催化合成糠醛乙二醇缩醛  

SYNTHESIS OF FURFURALGLYCOLACETAL BY POLYANILINE LOADED WITH p-TOLIENE SULFONIC ACID AS CATALYST

作　　者：王雪源[1] 岳金方[1] 陈立[1] 罗志臣[1] 刘伟[1] 戴凯麒 郭宏超[1] 陈柯全 

机构地区：[1]扬州工业职业技术学院化学工程学院,江苏扬州225127

出　　处：《精细石油化工》2017年第6期16-19,共4页Speciality Petrochemicals

基　　金：江苏省第四期"333高层次人才培养工程"第三层次培养对象(苏人才办2011第8号)资助;扬州工业职业技术学院专业导师工作室(2016-1)资助;扬州工业职业技术学院科研创新团队(2016-001)资助;江苏高校品牌专业建设工程资助项目(PPZY2015B180石油化工生产技术专业)

摘　　要：以聚苯胺负载对甲苯磺酸为催化剂,环己烷为带水剂,糠醛和乙二醇为原料合成糠醛乙二醇缩醛。产品经~1 H NMR和IR进行结构表征。考察了糠醛与乙二醇物质量比、催化剂用量、带水剂用量、反应时间及催化剂重复使用次数等因素对糠醛乙二醇缩醛收率的影响。结果表明,聚苯胺负载对甲苯磺酸具有良好的催化活性和稳定性,较佳反应条件为:糠醛0.2mol,n(糠醛)∶n(乙二醇)=1∶1.20,催化剂聚苯胺负载对甲苯磺酸用量为糠醛质量的5%,反应时间3h,带水剂环己烷用量为15mL,产品收率超过94.0%。催化剂连续使用五次,收率仍可达到90.0%左右。Furfuralglycolacetal was synthesized using polyaniline（PAN）loaded withp-toluene sulfonic acid（PTSA）as catalyst,furfural and ethanediol as the raw materials,andcyclohexane（CYH）as water carrying agent.The products were characterized by IR and 1 H NMR.The effectsonyieldoffurfuralglycolacetalwas investigated from the factors of catalyst amount,furfural and glycol molar ratio,reaction time,the amount of water carrying agent,and cycle time of catalyst.The result shows that,the catalyst of PAN/PTSA has good catalytic activity and stability.The better reaction conditions areas follows：the amount of furfural is 0.2 mol,the molar ratio of furfural and ethanediol is 1∶1.20,the mass ratio of catalyst to furfural is 5%,the reaction time is 3 h,and the amount of water carrying agent is 15 ml.Under this condition,the yield of products exceeds 94.0%.The yield isstillabove90.0% after five use circles.

关 键 词：聚苯胺负载对甲苯磺酸 糠醛 糠醛乙二醇缩醛 合成 

分 类 号：TQ224.4[化学工程—有机化工]