PL EN


Preferences help
enabled [disable] Abstract
Number of results
Journal
2003 | 1 | 3 | 305-313
Article title

Transformations of xylenes in trimethylammonium hydrochloride-Aluminum chloride ionic liquid

Content
Title variants
Languages of publication
EN
Abstracts
EN
Isomerization of m-, o-and p-xylenes in the presence of trimethylammonium hydrochloride-AlCl3 ionic liquid with different composition was studied. Ionic liquids with the following ammonium salt: AlCl3 molar ratios were used: 1∶2, 1∶1.5 and 1∶1.25. It was shown that isomerization of xylenes proceeds under mild conditions at temperatures from 60°C to 110°C. It was found that the activity and selectivity of the ionic liquids depends on their composition. The most effective catalyst was the ionic liquid with the ammonium salt: AlCl3 molar ratio equal to 1∶2.
Publisher
Journal
Year
Volume
1
Issue
3
Pages
305-313
Physical description
Dates
published
1 - 9 - 2003
online
1 - 9 - 2003
References
  • [1] J.A. Boon, J.A. Levisky, J.L. Pflug, J.S. Wilkes: “Friedel-Crafts reactions in ambient temperature molten salts”, J. Org. Chem., Vol. 51, (1986), pp. 480–483. http://dx.doi.org/10.1021/jo00354a013[Crossref]
  • [2] K.R. Seddon: “Ionic liquids for clean technology”, J. Chem. Technol. Biot., Vol. 68, (1997), pp. 347–356. http://dx.doi.org/10.1002/(SICI)1097-4660(199704)68:4<351::AID-JCTB613>3.0.CO;2-4[Crossref]
  • [3] H.L. Chum, V.R. Koch, L.L. Mille, R.A. Osteryoung: “Electrochemical scrutiny of organometallic ironcomplexes and hexamethylbenzene in a room temperature molten salts”, J. Am. Chem. Soc., Vol. 97, (1975), pp. 3262–3264. http://dx.doi.org/10.1021/ja00844a081[Crossref]
  • [4] H. Olivier-Bourbigou and L. Magna: “Ionic liquids: perspectives for organic and catalytic reactions”, J. Mol. Catal. A-Chem., Vol. 182–183, (2002) pp. 419–437. http://dx.doi.org/10.1016/S1381-1169(01)00465-4[Crossref]
  • [5] J.A. Rabo (Ed.): Zeolite Chemistry and Catalysis, American Chemical Society, Washington, 1976.
  • [6] A.S. Araujo, T.B. Domingos, M.J.B. Souza, A.O.S. Silva: “m-Xylene isomerization in SAPO-11/HZSM-5 mixed catalyst”, React. Kinet. Catal. L., Vol. 73, (2001), pp. 283–290. http://dx.doi.org/10.1023/A:1014155106147[Crossref]
  • [7] F. Bauer, W.-H. Chen, Q. Zhao, A. Freyer, Sh.-B. Liu: “Improvement of coke-induced selectivation of H-ZSM-5 during xylene isomerization”, Microporous and Mesoporous Mater., Vol. 47, (2001), pp. 67–77. http://dx.doi.org/10.1016/S1387-1811(01)00318-3[Crossref]
  • [8] Y.-G. Li and H. Jun: “Kinetics study of the isomerization of xylene on ZSM-5 zeolites: the effect of the modification with MgO and CaO”, Appl. Cat A, Vol. 142, (1996), pp. 123–137. http://dx.doi.org/10.1016/0926-860X(96)00021-X[Crossref]
  • [9] S. Morin, N.S. Gnep, M. Guisnet: “Influence of coke deposits on the selectivity of m-xylene transformation and on the isomerization mechanism”, Appl. Catal. A-Gen., Vol. 168, (1998), pp. 63–68. http://dx.doi.org/10.1016/S0926-860X(97)00336-0[Crossref]
  • [10] P. Wasserscheid and W. Keim: “Ionic liquids-new “solutions” for transition metal catalysis”, Angew. Chem. Int. Edit., Vol. 39, (2000), pp. 3772–3789. http://dx.doi.org/10.1002/1521-3773(20001103)39:21<3772::AID-ANIE3772>3.0.CO;2-5[Crossref]
  • [11] A.K. Abdul-Sada, K.R. Seddon, N.J. Steward: World Patent 95/21872, 1995.
  • [12] M. Guisnet, N.S. Gnep, S. Morin: “Mechanisms of xylene isomerization over acidic solid catalysts”, Microporous and Mesoporous Mater., Vol. 35–36, (2000), pp. 47–59. http://dx.doi.org/10.1016/S1387-1811(99)00207-3[Crossref]
  • [13] S. Morin, P. Ayrault, S. El Mouahid, N.S. Gnep, M. Guisnet: “Particular selectivity of m-xylene isomerization over MCM-41 mesoporous aluminosilicates”, Appl. Catal. A-Gen., Vol. 159, (1997), pp. 317–331. http://dx.doi.org/10.1016/S0926-860X(97)00057-4[Crossref]
Document Type
Publication order reference
YADDA identifier
bwmeta1.element.-psjd-doi-10_2478_BF02476231
Identifiers
JavaScript is turned off in your web browser. Turn it on to take full advantage of this site, then refresh the page.