Methanol → Methacrolein
Reaction equation
[O:1]=[CH:2][C:3](=[CH2:5])[CH3:4].[OH2:6].[CH3:7]O>>[C:2]([O:6][CH3:7])(=[O:1])[C:3]([CH3:4])=[CH2:5].[O:1]=[CH:2][C:3](=[CH2:4])[CH3:5]Participants
Procedure
In the method of the present invention, it is preferred that the contents of the liquid methacrolein and the liquid methanol in the liquid mixture (I) are 5 to 60% by weight and 40 to 95% by weight, respectively, more advantageously, 10 to 50% by weight and 40 to 75% by weight, respectively, based on the weight of the liquid mixture (I). In the method of the present invention, as the liquid mixture (I) which is introduced into the dehydration tower, use can be made of a liquid mixture (IV) containing liquid methacrolein and liquid methanol, which liquid mixture (IV) is obtained by separation from the reaction mixture (containing methyl methacrylate, water, methacrolein and methanol) obtained by the direct ML-to-MMA synthesis reaction, that is, the liquid mixture (IV) may be recycled to the dehydration tower as the liquid mixture (I).
Sources & evidence
- ORD record
- ord-2510fe6a0a22448dba44c6af3cec2f1c
- Source dataset
- uspto-grants-1999_10
- Patent number
- US05969178
Reaction notes
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