update 3/11/24


Acetaldehyde to crotonaldehyde

Reaction in 2 steps

aldolisation : 2 CH3-CHO ====>CH3-CHOH-CH2-CHO  (exothermique)
react temp ..................... 45°/50 °c
catalyst ...........................proprietary

deshydration : CH3-CHOH-CH2-CHO ===> CH3-CH=CH-CHO + H2O  (endothermique)
reac temp........................120/130°
catalyst ...........................proprietary


Chemical yield : 97%
consumption for 1 kg of crotonaldehyde
Ethanal..................................1.3 kg
steam ....................................2.7 kg