Acetaldehyde → 1,1-Dimethoxyethane

Temperature

300 °C

960 g of catalyst J synthesized according to Example 3 was charged into a reactor of 2 m length and 29 mm diameter, maintained at a temperature of 300° C., then 690 g of mixture with a content of 24.5 weight percent of methanol, 2.1 weight percent of acetaldehyde and 73.4 weight percent of DMA was passed through the reactor per hour and the reaction gas was directly rectified by distillation in a column. At the column head, vinyl methyl ether was isolated with a selectivity of 99.1%, relative to the 90.6% of DMA which had reacted. In addition to vinyl methyl ether, the distillate contained 2.8 weight percent of acetaldehyde. Unreacted DMA and methanol which had been formed as well as methanol in the feed remained completely in the bottoms.

1. additionwas charged into a reactor of 2 m length and 29 mm diameter
2. customthe reaction gas
3. distillationwas directly rectified by distillation in a column

ORD record

ord-85f24059d21d47d6b36c6ad63cea58b4

Source dataset

uspto-grants-1992_03

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US05100852