High-purity magnesium fructose diphosphate preparation method

The invention discloses a magnesium fructose diphosphate preparation method. The method comprises the following steps that fructose-1,6-diphosphate and a composition containing nano-magnesium hydroxide react in water to produce the magnesium fructose diphosphate, the feed molar ratio of fructose-1,6-diphosphate to magnesium in nano-magnesium hydroxide is controlled to be (1.01-1.03):1. accordingly, high-yield and high-purity products can be obtained, the process is simple, and the method is suitable for industrial production. 本发明公开了一种果糖二磷酸镁的制备方法，包括如下步骤：使果糖-1,6-二磷酸与含有纳米氢氧化镁的组合物在水中反应生成果糖二磷酸镁，其中，控制果糖-1,6-二磷酸与纳米氢氧化镁中镁的投料摩尔比为1.01-1.03∶1；本发明能够兼具获得高收率与高纯度的产物，且工艺简单，适于工业化生产。