tert-Butylation of glycerol catalysed by ion-exchange resins
作者： Katarína Klepáčová , Dušan Mravec , Martin Bajus
DOI: 10.1016/J.APCATA.2005.06.027
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摘要: The etherification of glycerol with isobutylene or tert-butyl alcohol without solvent in the liquid phase catalysed by strong acid ion-exchange resins Amberlyst type and two large-pore zeolites H-Y H-Beta was studied. swelling commercial macroreticular gelular (Amberlysts) its influence on tert-butylation is discussed this work. By comparing conversions selectivity to di- tri-tert-butyl ethers for gel resins, it can be concluded that dry form are very active catalysts reaction because large pore diameter. tert-Butyl as alkylation agent not suitable formed water deactivates catalysts. polymer effective (small diameter). best results at 100% conversion tri-ethers larger than 92% were obtained over resins. Di- potential oxygenates diesel fuel.
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