电解氧化法从葡萄糖制备D-葡萄糖酸-δ-内酯

Preparation of D-Gluconic Acid-S-Lactone by Electrolytic Oxidation of Glucose

文章用自制压滤式电解槽对葡萄糖进行氧化电解制备D-葡萄糖酸-δ-内酯,对其工艺条件如电解质溶液、工作电流、分离、结晶条件等进行了一系列的探索和研究。结果表明,采用电解液外循环,控制一定的工作电流,可以得到较高产率的葡萄糖酸,再用电渗析方法分离葡萄糖和葡萄糖酸液溶液后,经过离子交换树脂,结晶,浓缩可以得到最终产物。

In the paper,D-gluconic acid-δ-lactone is Prepared from electrolytic oxidation of glucose by self-made filter press type electrolytic cell.Technological conditions such as electrolyte solution,operating current,separation and crystallization conditions are explored and researched.The results show that by external circulating electrolyte solution and by controlling certain operating current,more higher yields of gluconic acid can be obtained.After separating the glucose and gluconic acid solution by electrodialysis,the obtained acid solution through ion exchange resins is crystallined and then is concentrated to the final product.