Separation of dibutyl carbonate/butyl carbamate close-boiling mixture using imidazolium-based ionic liquids | |
Department | 绿色化学研究发展中心 |
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; Deng YQ(邓友全) | |
The second department | 固体润滑国家重点实验室 |
2015 | |
Source Publication | RSC Advances |
ISSN | 2046-2069 |
Volume | 5Issue:76Pages:62110-62115 |
Abstract | 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. |
Subject Area | 物理化学与绿色催化 |
DOI | 10.1039/c5ra09281g |
Funding Organization | National Natural Science Foundation of China (No. 21173240) |
Indexed By | SCI |
If | 3.840 |
Language | 英语 |
Funding Project | 绿色催化课题组 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/18521 |
Collection | 绿色化学研究发展中心 固体润滑国家重点实验室(LSL) |
Corresponding Author | Deng YQ(邓友全) |
Affiliation | 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 |
Recommended Citation 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.,...&邓友全.(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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c5ra09281g.pdf(834KB) | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text |
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