publication . Article . 2007

Etherification of glycerol and ethylene glycol by isobutylene

Katarína Klepáčová; Dušan Mravec; Alexander Kaszonyi; Martin Bajus;
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  • Published: 13 Apr 2007 Journal: Applied Catalysis A: General, volume 328, pages 1-13 (issn: 0926-860X, Copyright policy)
  • Publisher: Elsevier BV
Abstract
The influence of catalyst, solvent and temperature on the etherification of glycerol and ethylene glycol with isobutylene in the liquid phase catalysed by strong acid ion-exchange resins of Amberlyst type (Amberlyst 15 and 35), p-toluenesulfonic acid and by two large-pore zeolites H-Y and H-Beta was studied. Reactions were carried out in the temperature range from 50 to 90 °C at autogenous pressure in solvent (dioxane, dimethyl sulfoxide and sulfolane). The basic kinetic parameters for complex of 11 equilibrium reactions for glycerol and 5 equilibrium reactions for ethylene glycol were estimated. The highest conversion of glycerol was achieved on H-Beta, but on ...
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