Separation of dibutyl carbonate/butyl carbamate close-boiling mixture using imidazolium-based ionic liquids | |
Wang PX(王培学)1,2; Liu SM(刘士民)1; Lu LJ(卢六斤)1; Ma XY(马祥元)1; He YD(何昱德)1; Deng YQ(邓友全)1 | |
刊名 | RSC Advances |
2015 | |
卷号 | 5期号:76页码:62110-62115 |
ISSN号 | 2046-2069 |
通讯作者 | 邓友全 |
英文摘要 | An efficient method using commercially available ionic liquids (ILs) as extractants for the separation of a close-boiling mixture containing dibutyl carbonate (DBC) and butyl carbamate (BC) was provided. It was found that 1-butyl-3-methylimidazolium chloride ([BMIM]Cl) displayed the best performance for the separation of DBC and BC, and the purity of the DBC and BC could reach 99.8% and 99.9%, respectively, under the optimum conditions. According to the results of infrared spectroscopy (IR) and thermogravimetric (TG) analyses, the superiority of [BMIM]Cl might be related to the high nucleophilicity (i.e. ability to hydrogen bond) of the Cl−, which could be able to interact with the amino in BC to form a eutectic mixture and resulted in easy removal of DBC. Meanwhile, no decomposition of [BMIM]Cl was observed in the heating process, and the obtained results showed that [BMIM]Cl could be successfully reused for ten recycles with DBC purity of 99.5% avoiding any further treatment. Moreover, [BMIM]Cl also exhibited good performance in the separation of a dimethyl carbonate/methanol azeotropic mixture. |
学科主题 | 物理化学与绿色催化 |
收录类别 | SCI |
资助信息 | National Natural Science Foundation of China (No. 21173240) |
语种 | 英语 |
WOS记录号 | WOS:000358353100074 |
公开日期 | 2015-12-24 |
内容类型 | 期刊论文 |
源URL | [http://210.77.64.217/handle/362003/18521] |
专题 | 兰州化学物理研究所_绿色化学研究发展中心 兰州化学物理研究所_固体润滑国家重点实验室 |
作者单位 | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Ctr Green Chem & Catalysis, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
推荐引用方式 GB/T 7714 | Wang PX,Liu SM,Lu LJ,et al. Separation of dibutyl carbonate/butyl carbamate close-boiling mixture using imidazolium-based ionic liquids[J]. RSC Advances,2015,5(76):62110-62115. |
APA | Wang PX,Liu SM,Lu LJ,Ma XY,He YD,&Deng YQ.(2015).Separation of dibutyl carbonate/butyl carbamate close-boiling mixture using imidazolium-based ionic liquids.RSC Advances,5(76),62110-62115. |
MLA | Wang PX,et al."Separation of dibutyl carbonate/butyl carbamate close-boiling mixture using imidazolium-based ionic liquids".RSC Advances 5.76(2015):62110-62115. |
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