太原理工大学学报2019，Vol.50Issue(1)：42-47,6.DOI:10.16355/j.cnki.issn1007-9432tyut.2019.01.007
磁性纳米颗粒负载离子液体催化合成聚甲醛二甲醚
Catalyzed Synthesis of Polyoxymethylene Dimethyl Ethers by Ionic Liquid Supported on Magnetic Nanoparticles
摘要
Abstract
Magnetic nanoparticle supported ionic liquid catalysts were prepared.XRD, TEM and FT-IR were used for the characterization of the catalysts.The results show that ionic liquid was well supported on magnetic nanoparticles.Polyoxymethylene dimethyl ethers (PODEn) was synthesized via the reaction catalyzed by the magnetic nanoparticle supported ionic liquid catalyst.The influences of catalyst dosage, the mole ratio of methanol to trioxane, reaction temperature and reaction time on catalytic activity were investigated.The optimum operating conditions were obtained:reaction temperature 110℃, reaction time 3 h, n (methanol) ∶n (trioxane) =2∶1, catalyst dosage 2.0％.Under these conditions, the conversion rate of trioxane was 99.8％ and selectivity of PODE3～8 reached 37.96％, catalyst still remained highly active even after being reused four times.关键词
离子液体/磁性纳米颗粒/聚甲醛二甲醚Key words
ionic liquid/magnetic nanoparticles/polyoxymethylene dimethyl ethers分类
化学化工引用本文复制引用
张桐露,刘康军,李静,赵变红,张朝峰,李瑞丰..磁性纳米颗粒负载离子液体催化合成聚甲醛二甲醚[J].太原理工大学学报,2019,50(1):42-47,6.基金项目
山西省自然科学基金资助项目(201801D121062) （201801D121062）
山西省回国留学人员科研资助项目(2017-037,2015-042) （2017-037,2015-042）
