中南大学学报（自然科学版）2011，Vol.42Issue(8)：2204-2208,5.
以硫酸盐亚型盐湖卤水为原料制备高纯轻质氧化镁
Preparation of high-purity light magnesia from sulfate salt subtype salt lake brine
摘要
Abstract
Using sulfate salt subtype salt lake brine as raw materials, light-magnesia was prepared by the technology of ammonia precipitation, ammonium bicarbonate carbonation and calcination. The effects of the excessive coefficient of ammonium bicarbonate, concentration of ammonium bicarbonate, temperature of reaction and time of reaction on the carbonization ratio of ammonium bicarbonate were investigated, and the optimum process for preparation of light magnesia was obtained. The results show mat the contents of element S and B are decreased, the apparent gravity is increased to 10 cm3/g, and the purity of magnesium oxide is greater than 99% due to carbonation, which is better than national standard of light magnesia.关键词
轻质氧化镁/硫酸盐亚型卤水/碱式碳酸镁Key words
light magnesia/ sulfate salt subtype salt lake brine/ basic magnesium carbonate分类
化学化工引用本文复制引用
徐微,刘卫平,杨喜云,石西昌,陈世月,余亮良..以硫酸盐亚型盐湖卤水为原料制备高纯轻质氧化镁[J].中南大学学报（自然科学版）,2011,42(8):2204-2208,5.基金项目
中央专项中南大学前沿研究计划重点项目(2010QZZD003) （2010QZZD003）
国家科技支撑计划“十一五”重大项目(2008BAB35B04) （2008BAB35B04）
