| 碳酸铝铵制备过程中工艺参数对粒度的影响 |
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| 引用本文： | 施辉献,张磊,杨妮,屈亚松,杨亚刚,史春阳,谢刚. 碳酸铝铵制备过程中工艺参数对粒度的影响[J]. 轻金属, 2020, 0(2): 18-22,35 |
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| 作者姓名： | 施辉献 张磊 杨妮 屈亚松 杨亚刚 史春阳 谢刚 |
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| 作者单位： | 昆明冶金研究院有限公司,云南 昆明650503;昆明理工大学 冶金与能源工程学院,云南 昆明650093;昆明冶金研究院有限公司,云南 昆明650503;昆明理工大学 冶金与能源工程学院,云南 昆明650093;共伴生有色金属资源加压湿法冶金技术国家重点实验室,云南 昆明650503 |
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| 基金项目： | 科研院所技术开发研究专项 |
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| 摘 要： | 以AlCl3和NH4HCO3为原料,采用超声沉淀法制备出超细氧化铝前驱物碳酸铝铵(AACH)。研究分散剂种类、用量及加入方式,超声波,反应物浓度及滴加速度等工艺条件对反应产物AACH粒度的影响。结果表明:选用分散剂PEG-2000并控制用量在16%左右,超声功率控制在90 W,温度控制在20~30℃,滴定速度控制在0.87 L/h左右时,可以得到粒度分布更加均匀的AACH。
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| 关 键 词： | 碳酸铝铵 分散剂 粒度 超声沉淀 |
Effect of process parameters on granularity during AACH preparation |
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| Shi Huixian,Zhang Lei,Yang Ni,Qu Yasong,Yang Yagang,Shi Chunyang,Xie Gang. Effect of process parameters on granularity during AACH preparation[J]. Light Metals, 2020, 0(2): 18-22,35 |
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| Authors: | Shi Huixian Zhang Lei Yang Ni Qu Yasong Yang Yagang Shi Chunyang Xie Gang |
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| Affiliation: | (Kunming Metallurgical Research Institute Co.,Ltd.,Kunming 650503,China;Faculty of Metallurgy and Energy Engineering,Kunming University of Science and Technology,Kunming 650093,China;State Key Laboratory of Common Associated Non-ferrous Metal Resources Pressure Hydrometallurgy Technology,Kunming 650503,China) |
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| Abstract: | Ultra-fine alumina precursor ammonium aluminum carbonate hydroxide(AACH)was prepared by ultrasonic precipitation using AlCl3 and NH4HCO3 as raw materials.The effects ofthe process conditions,such as the type,dosage and adding method of the dispersant,the ultrasonic,the reactants concentration and the dropping rate,on the particle size of AACH were studied.The results showed that the dispersant PEG-2000 was selected and the dosage was about 16%,the ultrasonic power was controlled at 90 W,the temperature was under 20~30℃,and the titration rate was controlled at about 0.87 L/h,then AACH with more uniform particle size distribution can be obtained. |
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| Keywords: | ammonium aluminum carbonate hydroxide(AACH) dispersant granularity ultrasonic precipitation |
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