铝空气电池废液制备氢氧化铝阻燃剂分解工艺研究  

Study on Decomposition Technology of Aluminum Hydroxide Flame Retardant Prepared from Waste Liquid of Aluminum Air Battery

作　　者：施辉献 杨亚刚 杨崇方 徐庆鑫 李永刚 杨妮 谢刚 SHI Huixian;YANG Yagang;YANG Chongfang;XU Qingxin;LI Yonggang;YANG Ni;XIE Gang(Kunming Metallurgical Research Institute Co.,Ltd.,Kunming 650503,China;State Key Laboratory of Common Associated Non-ferrous Metal Resources Pressure Hydrometallurgy Technology,Kunming 650503,China;Faculty of Metallurgy and Energy Engineering,Kunming University of Science and Technology,Kunming 650093,China)

机构地区：[1]昆明冶金研究院有限公司,昆明650503 [2]共伴生有色金属资源加压湿法冶金技术国家重点实验室,昆明650503 [3]昆明理工大学冶金与能源工程学院,昆明650093

出　　处：《有色金属工程》2020年第8期70-75,共6页Nonferrous Metals Engineering

基　　金：国家自然科学基金资助项目(51774160)。

摘　　要：采用碳分、种分和种分—碳分联合三种工艺对铝空气电池废电解液进行分解,并对分解得到的氢氧化铝的粒径、物相、差热差重变化和表面形貌进行了分析。结果表明,碳分工艺制取的氢氧化铝粒径粗大、颗粒表面粗糙,无法作为阻燃剂用;种分和种分—碳分联合工艺制得的氢氧化铝粒径细、颗粒形貌规则,可满足阻燃剂对氢氧化铝的要求;其中,种分—碳分联合工艺制备氢氧化铝时,分解率超过90%,远高于种分工艺的氢氧化铝分解率,为最佳生产工艺。Three technologies including carbon decomposition,seed decomposition and their combination are used for spent aluminum air battery electrolyte decomposition,and the particle size of aluminum hydroxide after decomposed,phase,poor differential thermal weight change and surface morphology were analysized.The results show that the aluminum hydroxide produced by the carbon decomposition process has a large particle size and coarse particles and cannot be used as a flame retardant;The particle size and morphology of aluminum hydroxide prepared by the combined process of seed decomposition and seed decomposition and carbon separation meet the requirements of flame retardant aluminum hydroxide.In the preparation of aluminum hydroxide by the combination decomposition of seed and carbon,the decomposition rate was more than 90%,which was much higher than that of the seed and carbon separation process.

关 键 词：超细氢氧化铝 碳分 种分 种分—碳分联合工艺 阻燃剂 

分 类 号：TQ330.38[化学工程—橡胶工业]