Influence of the functionalization degree of acidic ion-exchange resins on ethyl octyl ether formation

摘要: Abstract Ethyl octyl ether (EOE) can be obtained by the ethylation of 1-octanol means ethanol or diethyl carbonate over acidic ion-exchange resins. However, EOE formation has to compete with less steric demanding ether, by-product from dehydration decomposition. In present work, influence resin functionalization degree on been evaluated. A series partially sulfonated resins (0.87–4.31 mmol H+/g) were prepared sulfonation a macroreticular styrene–divinylbenzene copolymer. The catalysts characterized, and subsequently, tested in batch reactor (T = 150 °C, P = 25 bar). Amberlyst 15 46 also for comparison purposes. Catalytic runs revealed that occurred mainly firstly domain polymer skeleton, least crosslinked; while was formed whole bead. Accordingly, accessible domain, as result increasing temperature using pre-swelling solvent, is not suitable produce long chain ethers such EOE; which are preferred diesel fuels.