人工晶体学报2011，Vol.40Issue(2)：510-516,7.
白云石酸浸液氨化制备纳米氢氧化镁的实验研究
Preparation of Nano-sized Magnesium Hydroxide from Dolomites by Acid Immersing
摘要
Abstract
Nano-magnesium hydroxide were synthesized using dolomites as raw materials, reacting with hydrochloric acid and then with ammonium hydroxide solution at 25 ℃. The influences of pH value and aging time on the yield rate and morphology of Mg (OH)2 were investigated by scanning electron microscopy(SEM) and X-ray diffraction( XRD ). The results show that the Mg(OH) 2 samples reach the highest yield rate at pH = 12. Effect of pH value on the growth mechanism of Mg(OH)2 crystal during crystal process was also discussed. The obtained magnesium hydroxide is mainly changed from lamellar to rod as the aging time increasing.关键词
白云石/酸浸/氨化/氢氧化镁/形貌Key words
dolomites/ acid immersing/ ammoniation/ magnesium hydroxide/ morphology分类
化学化工引用本文复制引用
李歌,马鸿文,姜晓谦,姚文贵,苏双青..白云石酸浸液氨化制备纳米氢氧化镁的实验研究[J].人工晶体学报,2011,40(2):510-516,7.基金项目
中国地质大学(北京)矿物材料国家专业实验室开放基金项目(2008D002) （北京）
