The synthesis process conditions of methyl acrylate

The synthesis process conditions of methyl acrylate are mainly achieved through the esterification reaction of acrylonitrile and methanol in the presence of a catalyst. Here is a commonly used process condition:
1. Molar ratio of raw reactants: Acrylonitrile: Methanol=1:1.1-1.3 (excess methanol helps to promote esterification reaction towards the product direction)
2. Catalyst: Common catalysts include strong acids (such as sulfuric acid, phosphoric acid) or strong bases (such as sodium hydroxide, potassium hydroxide).
. The amount of catalyst used is generally 0.1% -2% (usually around 1%) of the total mass of the raw materials.
3. Reaction temperature: generally between 50-100 ° C. Lower temperatures can slow down the reaction rate, while higher temperatures may lead to the formation of side reaction products. Reaction pressure: The reaction is usually carried out at atmospheric pressure without additional pressure. Reaction time: Generally, 12-24 hours of reaction time is required to ensure sufficient reaction. In actual synthesis, the above process conditions are for reference only, and specific process conditions need to be optimized and adjusted according to factors such as the quality of the reactants, the activity of the catalyst, and the control of the reaction temperature. In addition, safety should also be taken into account during the reaction process, as acrylonitrile is a toxic and flammable chemical that needs to be operated under safe facilities.