摘要
向偏铝酸钠溶液中通入CO2气体,碳酸化分解偏铝酸钠以获得氢氧化铝粉体。通过对比常规分解和超声波场分解,考查了温度、CO2流量、终点pH值、超声波功率等因素对所得粉体粒径的影响。结果表明:超声波场可以获得粒径更小的粉体。在最佳条件通气速率0.2L/min、碳分温度30℃、终点pH值为9、超声波功率270W下,所得氢氧化铝粉体粒径为6.537um。
CO2 gas was introduced into sodium aluminate solution to carbonate and decompose sodium aluminate to obtain aluminum hydroxide powder.The effects of temperature,CO2 flow rate,end point pH value and ultrasonic power on powder particle size were investigated by comparing conventional decomposition with ultrasonic field decomposition.The results showed that the powder with smaller particle size can be obtained by ultrasonic field.Under the optimal conditions of aeration rate 0.2 L/min,carbon temperature 30℃,end point pH 9,ultrasonic power 270W,the particle size of aluminum hydroxide powder was 6.537 um.
作者
陈媛媛
韩中艳
陈秋
梅菊
CHEN Yuan-yuan;HAN Zhong-yan;CHEN Qiu;MEI Ju(Liupanshui Normal University,Liupanshui 553004,China)
出处
《世界有色金属》
2020年第21期129-131,共3页
World Nonferrous Metals
基金
贵州省大学生创新创业项目(20195201491)
六盘水市科技计划项目(52020-2018-0304、52020-2019-05-09)。
关键词
氢氧化铝粉体
偏铝酸钠
碳分
超声波
aluminum hydroxide powder
sodium aluminate solution
carbonate decomposition
ultrasonic
