PROCESS FOR PREPARING UNSATURATED ETHERS BY CATALYTIC DEALKOXYLATION OF GEM-DIALKOXY COMPOUNDS

摘要

1. A process for the production of unsaturated ethers corresponding to the following general formula see diagramm : EP0217089,P8,F2 by catalytic dealkoxylation of geminal dialkoxy compounds corresponding to formula (II) see diagramm : EP0217089,P8,F3 R**1 and R**2 representing C1 -C3 alkyl, aryl, H, R**3 representing methyl, ethyl, Y representing H, methyl, at elevated temperature in the gas phase on an Na-exchanged zeolite as catalyst, characterized in that zeolites of the modernite or ZSM5 type with an Na2 O:Al2 O3 molar ratio of 1:1.05 (+-0.25) are used.