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Synthesis of 1,1‐diethoxyethane using a continuous flow reactor: catalyst deactivation and effect of feed purity and of solvent addition
Author(s) -
Gomez Manuel F,
Arrúa Luis A,
Abello Ma Cristina
Publication year - 2004
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/jctb.995
Subject(s) - chemistry , catalysis , acetaldehyde , reagent , solvent , ethanol , continuous flow , raw material , chemical engineering , hexane , organic chemistry , physics , mechanics , engineering
Abstract The synthesis of 1,1‐diethoxyethane from ethanol and acetaldehyde was studied in a continuous flow reactor using Amberlyst 15 as catalyst. The resin underwent an important activity loss with both analytical quality reagents and industrial raw materials. The deactivation was related to a deterioration in acidity as a consequence of sulfonic group hydration mainly promoted by water from reaction. A higher ethanol conversion and a lower deactivation rate at long time on‐stream were observed when n ‐hexane was added to the feed. Copyright © 2004 Society of Chemical Industry