摘要
以自制的六氨氯化镁为原料,采用常温固相法制备了高纯超细氢氧化镁。对固相法制备高纯超细氢氧化镁的工艺条件进行了研究,得到优化的制备工艺条件为:M gC l2.6NH3和M gC l2.6H2O摩尔比1∶1,球磨速度350 r/m in,球磨时间15 m in,球料比5∶1、充填率52%,磨介1份10 mm大球和2份6 mm小球。对制得的超细氢氧化镁进行化学组成分析,结果表明:氢氧化镁含量在99.7%左右,杂质含量低于0.3%。粒度分析表明产品平均粒径为158 nm,变异系数(CV)为0.194。
High-purity ultrafine magnesium hydroxide was prepared by ambient temperature solid-state reaction using hexammoniated magnesium chloride as raw material. It was researched to obtain an appropriate operated condition：hexammoniated magnesium chloride and magnesium chloride in a molar ratio of 1：1, a rotating speed of grinding machine at 350 r/min for 15 min, grinding balls and raw materials in a ratio of 5：1 within filling rate of 52%,Ф10 mm and Ф6 mm grinding balls in a ratio of 1：2. The analysis of chemical component shows a content of magnesium hydroxide about 99.7%, a content of impurity lower than 0.3%. The result shows that an average particle size is 158 nm by laser particle analyzer, which coefficient variance （CV） is 0.194.
出处
《华东理工大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2005年第5期616-619,共4页
Journal of East China University of Science and Technology
基金
上海市纳米科技与产业发展促进中心项目经费支持(0212nm045)
关键词
氢氧化镁
超细
高纯
六氨氯化镁
magnesium hydroxide
ultrafine
high-purity
hexammoniated magnesium chloride
作者简介
宋兴福（1970-），男，主要从事化学反应工程及盐湖资源综合利用研究。
E-mail：jgyu@ecust.edu.cn
