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http://hdl.handle.net/2445/121482
Title: | Catalytic activity dependence on morphological properties of acidic ion-exchange resins for the simultaneous ETBE and TAEE liquid-phase synthesis |
Author: | Soto López, Rodrigo Fité Piquer, Carles Ramírez Rangel, Eliana Iborra Urios, Montserrat Tejero Salvador, Xavier |
Keywords: | Catàlisi Resines de bescanvi iònic Èters Catalysis Ion exchange resins Ethers |
Issue Date: | 24-Jan-2018 |
Publisher: | Royal Society of Chemistry |
Abstract: | The simultaneous liquid-phase synthesis of 2-ethoxy-2-methylpropane (ETBE) and 2-ethoxy-2-methylbutane (TAEE) has been studied over fifteen commercial acidic ion-exchange resins. Kinetic experiments were carried out in a batch reactor at T = 335 K and initial molar ratios of alcohol to olefins (R°A/O) and between olefins (R°C4/C5) of 1.1 and 1, respectively. The catalytic activity, measured as intrinsic initial etherification rates, has been found to decrease in the order: Amberlyst¿ 35 > Amberlyst¿ 48 > Purolite® CT-275 > Amberlyst¿ 15 > Purolite® CT-175 > Amberlyst¿ 40 > Amberlyst¿ 36 > Amberlyst¿ 16 > Purolite® CT-482 > Amberlyst¿ 39 > Amberlyst¿ DT > Amberlyst¿ 45 > Purolite® CT-124 > Purolite® MN-500 > Amberlyst¿ 46. This catalytic activity rank is related to the morphological properties of the resins in both dry and swollen states. The ratio of acid capacity to specific volume of the swollen polymer has been found to be the main catalyst properties that determine their activity: the higher the ratio, the higher the activity. |
Note: | Versió postprint del document publicat a: https://doi.org/10.1039/c7re00177k |
It is part of: | Reaction Chemistry & Engineering, 2018, vol. 3, num. 2, p. 195-205 |
URI: | http://hdl.handle.net/2445/121482 |
Related resource: | https://doi.org/10.1039/c7re00177k |
ISSN: | 2058-9883 |
Appears in Collections: | Articles publicats en revistes (Enginyeria Química i Química Analítica) |
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