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http://hdl.handle.net/2445/99085
Title: | Ion exchange resins as catalysts for the liquid-phase dehydration of 1-butanol to di-n-butyl ether |
Author: | Pérez-Maciá, María Ángeles Bringué Tomàs, Roger Iborra Urios, Montserrat Tejero Salvador, Xavier Cunill García, Fidel |
Keywords: | Èters Resines de bescanvi iònic Catàlisi Alcohol butílic Ethers Ion exchange resins Catalysis Butanol |
Issue Date: | 24-May-2014 |
Publisher: | Elsevier B.V. |
Abstract: | This work reports the production of di-n-butyl ether (DNBE) by means of 1-butanol dehydration in the liquid phase on acidic ion-exchange resins. Dehydration experiments were performed at 150 ºC and 40 bar on 13 styrene-codivinylbenzene ion exchangers of different morphology. By comparing 1-butanol conversions to DNBE and initial reaction rates it is concluded that oversulfonated resins are the most active catalysts for 1-butanol dehydration reaction whereas gel-type resins that swell significantly in the reaction medium as well as the macroreticular thermostable resin Amberlyst-70 are the most selective to DNBE. The highest DNBE yield was achieved on Amberlyst 36. The influence of typical 1-butanol impurities on the dehydration reaction were also investigated showing that the presence of 2-methyl-1-propanol (isobutanol) enhances the formation of branched ethers such as 1-(1-methylpropoxy) butane and 1-(2-methylpropoxy) butane, whereas the presence of ethanol and acetone yields ethyl butyl ether and, to a much lesser extent, diethyl ether. |
Note: | Versió postprint del document publicat a: http://dx.doi.org/10.1016/j.apcata.2014.05.017 |
It is part of: | Applied Catalysis A-General, 2014, vol. 482, p. 38-48 |
URI: | http://hdl.handle.net/2445/99085 |
Related resource: | http://dx.doi.org/10.1016/j.apcata.2014.05.017 |
ISSN: | 0926-860X |
Appears in Collections: | Articles publicats en revistes (Enginyeria Química i Química Analítica) |
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