【摘要】 以青海盐湖氯化镁为初级原料,氯化镁经溶解、除杂、精制后采用喷雾热解法在立式热解炉中热解制备氧化镁。着重研究了喷雾热解的温度和进料量对氯化镁分解率的影响,最终确定的最佳工艺条件为:喷雾热解制备氧化镁时氯化镁的最佳热解温度为600℃,进料量为12 L/h。最佳工艺条件下氯化镁分解率在99%以上。该方法工艺流程简单、便于操作,是一种很有应用前景的氧化镁生产方法。更多还原

【Abstract】 Magnesium oxide was prepared with magnesium chloride from Qinghai Salt Lake as the primary raw material.Through dissolving,purification,and refining,the magnesium chloride was pyrolyzed by spray pyrolysis method in a vertical pyrolysis furnace to prepare magnesium oxide.Influence of temperature and feed rate on the decomposition rate of magnesium chloride was emphatically studied,and the optimum conditions were confirmed:the best pyrolysis temperature was 600 ℃ and feed rate was 12 L/h.Under the optimum conditions,the decomposition rate of magnesium chloride was more than 99%.The advantage of this method was simple,and easy to operate,therefore it′s a promising production method of magnesium oxide.更多还原