赤泥基建筑保温材料制备研究  

Preparation of red mud based building insulation materials

作　　者：李芳 郑现菊[2] LI Fang;ZHENG Xian-ju(Henan Vocational College of Information Statistics,Zhengzhou 450008,China;Zhengzhou Institute of Finance and Economics,Zhengzhou 450044,China)

机构地区：[1]河南信息统计职业学院,河南郑州450008 [2]郑州财经学院,河南郑州450044

出　　处：《中国有色冶金》2022年第2期93-98,共6页China Nonferrous Metallurgy

基　　金：河南省教育厅规划项目课题(ZJB13039)。

摘　　要：赤泥是氧化铝生产过程中产生的固体废弃物,大部分以堆存为主,其处置利用是铝工业所面临的重要课题之一。以拜耳法赤泥为主要原料,协同粉煤灰、陶瓷抛光废渣等物料利用烧结法制备建筑保温材料,试验考察了赤泥掺量、烧结温度、发泡剂用量等对保温材料性能的影响,结果表明,在赤泥添加量40%、烧结温度为1070℃、发泡剂用量3%的较优工艺条件下,制备的产品性能达到行业相关标准要求。该技术不仅可以规模化消纳赤泥,还充分利用了陶瓷抛光废渣等工业固废,为多固废协同利用提供了新的途径。Red mud is solid waste from the process of alumina production,most of which is treated by stockpiling,its treatment and utilization is one of the major topics facing the aluminum industry.In this paper,By using red mud of Bayer process as the main raw material,together with fly ash,ceramic polishing waste powder and other materials,the building insulation material is prepared with sintering process.The result shows that under the relatively optimum conditions of 40%of added red mud,1070℃of sintering temperature and 3%of foaming agent dosage,the performances of the prepared products can reach the relevant code requirements of the industry.By using this technology,not only the red mud can be treated and utilized in large scale,but also the ceramic polishing waste powder and other industrial solid waste can be fully made use of,blazing a new path for utilizing the multi-solid-waste in a synergistic way.

关 键 词：氧化铝冶炼 赤泥 陶瓷抛光废渣 建筑保温材料 烧结法 工业固废 

分 类 号：X758[环境科学与工程—环境工程]