| 摘要 |
The present invention discloses a process for the synthesis of 3-methyl-pyridine from formaldehyde, paracetaldehyde, ammonia and acetic acid, whereby said compounds are reacted and said process comprises the following parameters: a) a reaction temperature of 260-300° C.; b) a molar ratio of formaldehyde and paracetaldehyde of 0.7-1-4 Mol/Mol: c) an ammonia concentration of 10-20 weight-% d) an acetic acid concentration of 4-20 weight-% e) a paracetaldehyde concentration of 0.4-1.6 Mol/kg f) a retention time of 10-30 minutes in case of a continuous reaction and 10-90 minutes in case of a discontinuous reaction; and g) a reaction pressure of 30-130 bar
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