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本文用亚硝酸乙酯与２－丁酮缩合制备双乙酰－肟。由于肟的水解反应为可逆反应，本文拟定了双乙酰－肟边水解边蒸馏新工艺，结果表明，该工艺较传统的先水解后蒸馏的双乙酰合成法重量收率提高８％左右。本文还对双乙酰－肟水解的可能机理提出了建议。
Diacetyl-oxime was prepared by condensation of ethyl nitrite with 2-butanone. Since the hydrolysis reaction of oxime is reversible, a new process for the side-by-side hydrolysis of diacetyl-oxime has been developed. The results show that the weight-yield of this method is about 8% higher than that of the conventional diacetyl synthesis after the first hydrolysis and distillation. This paper also proposed the possible mechanism of diacetyl - oxime hydrolysis.