Preparation of Ultrafine Al(OH)3 Powders from Scrap Aluminum

摘要：

　　The homogeneous precipitation pathway was explored to synthesize ultrafine powders of Al(OH)3.In the experiment,the scrap aluminum were used as raw material.The effects of reaction time,reaction temperature,stirring speed,concentration of sulphuric acid and dispersant on the preparation process were investigated.The results showed that ultrafine Al(OH)3 powders can be yielded and well-controlled under the following optimal conditions:the concentration of sulphuric acid 3.0 mol·L-1,reaction temperature 0-4 ℃,stirring speed 900 r.min-1 and reaction time 15 min.The diameter less than 100nm of sphericity Al(OH)3 particles with the narrow distribution were successfully obtained.The Al(OH)3 powders was analyzed with scanning electron microscopy,infrared spectrometer.The Al(OH)3 powders have good dispersancy and purity is more than 90%.The operation of the experiment was very simple,and the particles were separated easily.

关键词： scrap aluminum homogeneous precipitation ultra-fine Al(OH)3 powders dispersancy

作者: Jing Xu

作者单位: Beifang University of Nationalities,Yinchuan,Ningxia,China 750021

会议类型: 国际会议

会议名称: 3rd International Conference on Testing and Evalution of Inorganic Materials(第三届无机材料测试与评价学术年会(TEIM2012))

会议地点: 景德镇

会议语种:英文

页码: 13-16

在线出版日期: 2012-10-15（万方平台首次上网日期，不代表论文的发表时间）