中文摘要：

研究以盐湖资源的综合利用为背景，青海某盐湖的氧化镁产品为原料，研究采用水合法制备氢氧化镁的工艺条件。通过单因素条件试验研究反应温度、反应时间和原料固液比等反应参数对原料转化率及产品粒径的影响规律，探索氧化镁水合法制备氢氧化镁的制备机理，初步确定最佳制备条件为反应温度180～200℃、反应时间5～7h，原料固液比1：40条件时，可制得产品d50为20μm左右、粒度分布比较均匀且结晶良好的片状氢氧化镁产品。

英文摘要：

Research is made on the process conditions for preparing magnesium hydroxide by hydration method with the magnesium oxide product of a salt lake in Qinghai as the raw material in the campaign of the comprehensive utilization of the resource of salt lakes. Single factor conditional tests are made on the effect of the reaction parameters such as the reaction time, reaction temperature, ratio of solid to liquid of the raw material, etc. on the conversion rate and product particle size, and to explore the mechanism of preparing magnesium hydroxide by hydration method. It has been preliminary determined that the optimal conditions for the preparation include the reaction temperature between180 - 200%, the reaction time between 5 - 7h and the ratio of solid to liquid of the raw material of 1 ： 4, on which conditions, a flaky magnesium hydroxide product with d50 of about 20μm , uniform size and good crystallization can be obtained.