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Title: Influence of acid ion-exchange resins morphology in swollen state on the synthesis of ethyl octyl ether from ethanol and 1-octanol
Author: Bringue Tomás, Roger
Ramírez Rangel, Eliana
Iborra Urios, Montserrat
Tejero Salvador, Xavier
Cunill García, Fidel
Keywords: Resines de bescanvi iònic
Ion exchange resins
Issue Date: 6-May-2013
Publisher: Academic Press
Abstract: Ethyl-octyl ether (EOE) liquid phase synthesis from ethanol and 1-octanol over ion-exchange resins is feasible at 423K, though di-ethyl ether and di-n-octyl ether were also formed. The influence of the catalyst morphology on the reaction was checked by testing twenty-two acidic resins. Gel-type resins of low crosslinking degree yielded the higher amounts of EOE, whereas macroreticular ones of high crosslinking degree gave mainly di-ethyl ether. Ethanol conversion highly depends on the resin acid capacity, [H+], whereas 1-octanol conversion and selectivity to EOE depends on the specific volume of swollen polymer, Vsp, and porosity. The variation of ethanol and 1-octanol conversion, selectivity to EOE with respect to both alcohols as well as ethers TOF as a function of [H+]/Vsp suggests that a part of the active sites does not take part in the EOE synthesis reaction on highly cross-linked resins. Amberlyst 70 could be interesting in industry due to its selectivity to EOE and higher thermal stability
Note: Versió postprint del document publicat a:
It is part of: Journal of Catalysis, 2013, vol. 304, p. 7-21
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ISSN: 0021-9517
Appears in Collections:Articles publicats en revistes (Enginyeria Química i Química Analítica)

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