【摘要】 对水氯镁石制备高纯镁砂的方法及工艺原理进行了综述,阐述了高纯镁砂制备过程中的关键技术问题,认为树脂法因具有高选择性、高容量应用于水氯镁石较为适宜,氨法具有低成本、工艺简单、环境友好等优点而适用于青海水氯镁石制备高纯镁砂工艺。借助一定的技术手段降低前驱物的烧结温度,对降低高纯镁砂生产成本、节约能源具有积极的意义。更多还原

【Abstract】 The paper reviews the preparation of magnesia and its production process.Some key problems in magnesia preparation are discussed.It is considered that resin method is more suitable for separating boron from bischofite than other methods because of the excellent selectivity and high capability.Ammonification method is suitable for magnesia preparation process because of low cost,simple process and no pollution.In order to reduce production cost and save energy,it is meaningful to decrease the sintering temperature of the precursor with the help of technic means.更多还原