摘要
本工艺以草酸为原料，配制成８．８ｇ草酸／１００ｇ水的水溶液，在隔膜式电解池内，使用金属铅电极，进行电解制备乙醛酸。电解时的电流密度为８Ａ·ｄｍ－２，温度为８～１２℃，电解时间为５ｈ。摩尔产率可达８０％以上。本文还对其它影响电解的因素进行了讨论。
Glyoxylic acid was synthesized electrolytically using oxalic acid as starting materials in a electrolytic cell with a PVC diaphragm and two lead electrodes. Electrolytic solution was an aqueous solution nearly saturated with oxalic acid. The current density was 8A·dm-2, the temperature 8～12℃. electrolysis was carried out for 5 hours. The experimental result shows that the glyoxylic acid can be produced with mole yields better than 80%. The other concerned factors was also disscussed in this article.
出处
《辽宁化工》
CAS
1998年第4期217-219,221,共4页
Liaoning Chemical Industry
关键词
乙醛酸
电解
铅电极
乙酸
Glyoxylic acid, Oxalic acid, Electrolysis, Lead electrode
