PRODUCTION OF NITROUS ESTER

Japanese Patent JP3807124

B2

PROBLEM TO BE SOLVED: To provide a method for stably producing a nitrous ester by effectively removing heat of reaction by specifying the amount of an alcohol and the circulation amount or the like of a bottom liquid when the alcohol is reacted with nitrogen oxide in a distillation reaction column by a specific method. SOLUTION: This method for producing a nitrous ester comprising flowing down an alcohol liquid from an upper part region 2 to a lower part region 3 while supplying the alcohol liquid from an alcohol liquid-supplying line 6 to a distillation reaction column 1, taking out the bottom liquid of the distillation reaction column 1 from the bottom part 4, cooling the taken out bottom liquid by a cooler 8, recycling the cooled bottom liquid by a recycling pipe 9 so as to be flown down from the lower part 3, on the other hand, supplying a feedstock gas containing nitrogen oxide from a feedstock gas-supplying line 5 to bring the nitrogen oxide into contact with the alcohol in the distillation reaction column 1 in a countercurrent state to carry out a gas-liquid catalytic reaction to provide nitrous ester comprises regulating so that the recycling amount of the bottom liquid may be 50-300 times as much as the weight of the total supplied alcohol, the total amount of the total supplied alcohol and the alcohol amount in the bottom liquid may be 20-150 mol per 1 mol nitrogen oxide, and the alcohol concentration in the bottom liquid at the bottom part 4 may be 15-60 wt.%.