| 光谱学与光谱分析 |
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| Studies on Acidity of Chloroaluminate Ionic Liquids and Its Catalytic Performance for Alkylation of Benzene with Long-Chain Alkenes |
| WU Qin1, 2,DONG Bin-qi1,HAN Ming-han1*,XIN Hong-liang1,ZUO Yi-zan1,JIN Yong1 |
1. Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
2. School of Chemical Engineering and the Environment, Beijing Institute of Technology, Beijing 100081, China |
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Abstract The acidity of chloroaluminate ionic liquids (ILs) was determined by using pyridine and acetonitrile as IR spectroscopic probes. Based on the characterization method of acidity of solid acid, IR νCCN absorption frequencies of pyridine in ionic liquids were assigned. By using the pyridine probe, it was found that when the anion molar composition x of ionic liquid varies within 0.4-0.5, ionic liquids exhibit weak Lewis acidity. Strongly basic molecular pyridine can be used as a probe to measure the acidity of ionic liquids whether their acidity is strong or weak, while weakly basic molecular acetonitrile is only fit for strong acid. In addition, the Lewis acidity-activity correlation for the chloroaluminate ionic liquids catalyst in the alkylation reaction was studied. The weakly acidic ILs with x≤ 0.5 does not exhibit any catalytic activity in the alkylation reaction. When the anion molar composition x is more than 0.55, the activity of ionic liquids is greatly enhanced due to the increase in the strength of the strong Lewis acidic species Al2Cl-7. But with the increase in alkenes conversion, the selectivity of 2-alkylbenzene is slightly reduced.
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Received: 2006-01-08
Accepted: 2006-04-28
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Corresponding Authors:
HAN Ming-han
E-mail: wuqin2@flotu.org
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| Cite this article: |
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WU Qin,DONG Bin-qi,HAN Ming-han, et al. Studies on Acidity of Chloroaluminate Ionic Liquids and Its Catalytic Performance for Alkylation of Benzene with Long-Chain Alkenes[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2007, 27(03): 460-464.
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| URL: |
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https://www.gpxygpfx.com/EN/Y2007/V27/I03/460 |
[1] Zhao D B, Wu M, Kou Y, et al. Catal. Today, 2002, 74: 157.
[2] Yang Y L, Kou Y. Chem. Comm., 2004, 4: 226.
[3] SHE Li-qin, LI Xuan-wen(佘励勤, 李宣文). Petrochemical Technology(石油化工), 2000, 29: 621.
[4] Connell G, Dumesic J A. J. Catal., 1986, 101: 103.
[5] Kline C H, Turkevich J. J. Chem. Phys., 1944, 12: 300.
[6] Ferreira M L, Volpe M. J. Mol. Catal., 2002, 184: 349.
[7] Daturi M, Appel L G. J. Catal., 2002, 209: 427.
[8] Bourne K H, Cannings F R, Pitkethly R C. J. Phys. Chem., 1970, 74: 2197.
[9] SU Wen-yue, FU Xian-zhi, WEI Ke-mei(苏文悦, 付贤智, 魏可美). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2000, 20(6): 840.
[10] Zaki M I, Hasan M A, Al-Sagheer F A, et al. Colloids and Surfaces A: Physicochem. Eng. Aspects, 2001, 190: 261. |
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