摘要
以氨水为沉淀剂与氯化镁反应,直接沉淀法制备氢氧化镁,探讨了反应温度、氯化镁浓度、氨水浓度、氨水加入流量、氨镁比、反应时间对制备超细氢氧化镁阻燃剂的影响程度。通过正交实验,选用L25(56)正交试验表,进行了25次实验,其中有9次实验均生产出了D(50)<1.00μm的氢氧化镁产品。得出各影响因素的影响程度依次为:镁离子浓度>氨镁比>反应温度>氨水加入速度>氨水浓度>反应时间。
Ammonia and magnesium chloride was used as raw material for preparing ultrafine magnesium hydroxide by direct precipitation. The magnesium hydroxide products were achieved with D （50） 〈 1.00 μm in 9 out of 25 tests by an orthogonal test methodology. The process variables had the following ranking in terms of their effect on the product quality, concentration of magnesium ions 〉 ammonia to magnesium ratio 〉 reaction temperature 〉 ammonia addition rate 〉 concentration of ammonia 〉 reaction time.
出处
《广州化工》
CAS
2010年第4期52-55,共4页
GuangZhou Chemical Industry
基金
中国科学院研究生科技创新资助项目(编号:2008-34)
关键词
氢氧化镁
粒径
正交实验
magnesium hydroxide
particle size
orthogonal experiment
