从铝灰的热分析探讨新的铝灰处理工艺  

Exploring new aluminum ash treatment processes from thermal analysis of aluminum ash

作　　者：梁艳晨 常吉进 刘二涛 钱跃进[4] 于仁红[1] 李满仓 郭李梦 Liang Yanchen;Chang Jijin;Liu Ertao;Qian Yuejin;Yu Renhong;Li Mancang;Guo Limeng(School of Materials Science and Engineering,Henan University of Science and Technology,Luoyang 471000,China;School of Materials Science and Engineering,Xi'an University of Architecture and Technology,Xi'an 710055,China;Changge Pinzhi Porcelain Industry Co.,Ltd.,Changge 461500,China;School of Materials Science and Engineering,Luoyang Institute of Technology,Luoyang 471023,China)

机构地区：[1]河南科技大学材料科学与工程学院,河南洛阳471000 [2]西安建筑科技大学材料科学与工程学院,陕西西安710055 [3]长葛市品致瓷业有限公司,河南长葛461500 [4]洛阳理工学院材料科学与工程学院,河南洛阳471023

出　　处：《轻金属》2025年第1期19-25,共7页Light Metals

基　　金：国家自然科学基金面上项目(51972099);研究生创新基金(S77)。

摘　　要：铝灰是电解铝工艺过程、铝型材加工、废铝重熔和再加工过程中产生的固体废弃物,根据最新的《国家危险废物名录》,铝灰被划分为有毒和危险废弃物。目前铝灰火法和湿法处理是两种典型的处理工艺,但均存在问题。根据铝灰的DTA-TG及高温煅烧,研究结果表明:高温煅烧可使铝灰中的非氧化物氧化完全、熔盐挥发,煅烧后的产物可在陶瓷釉料中使用,效果良好且应用附加值高,具有良好的社会经济效益。并根据试验结果,探讨铝灰处理新工艺。Aluminum ash is a solid waste,which is generated from the electrolytic aluminum process,aluminum profile processing,waste aluminum remelting and aluminum reprocessing.According to the latest National Hazardous Waste Directory,aluminum ash is classified as toxic and hazardous waste.Currently,the pyrolysis process and hydrolysis process of aluminum ash are two typical treatment processes,but both of them have some problems unsolved.Based on the DTA-TG and the high-temperature calcination of aluminum ash,the research results show that the non-oxide in aluminum ash could be completely oxidized,and the molten salt impurities be volatilized entirely by high-temperature calcination.The calcined aluminum ash can be used in ceramic glazes,with favorable performance,higher added value,better social and economic benefits.Based on the experimental results,the new aluminum ash treatment processes is discussed.

关 键 词：铝灰处理工艺 热分析 高温煅烧 熔盐挥发 固体废弃物 

分 类 号：TF821[冶金工程—有色金属冶金]