Preparation of iron tailings glass-ceramics by sol-gel method

2nd International Conference on Mechanical Engineering and Applied Composite Materials

机械制造;材料工程

Xu, Changwei^1 ; Zhao, Jianxin^1

Shenyang JianZhu University, Shenyang, China^1

关键词: Acid reactions;    Alkali reactions;    High energy consumption;    High purity;    Impurities in;    Iron tailings;    Melting method;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/544/1/012002/pdf
DOI  :  10.1088/1757-899X/544/1/012002

来源: IOP

【 摘 要 】

For the preparation of glass-ceramics by iron tailings, the sintering and melting methods have been used in the past, but the two methods are short of high energy consumption. In this test, the sol-gel method has been adopted. Because the sol-gel method requires high purity to prepare raw materials, and there are many impurities in iron tailings, which is inconsistent with the preparation requirements of sol-gel method. Therefore, in this experiment, useful elements in iron tailings were extracted. Iron tailings were obtained by thermal-alkali reaction, and Fe was obtained by acid reaction, so as to prepare Ca-Mg-Al-Si system glass-ceramics. After the preparation of sol-gel, the basic glass was obtained, and after nucleation and crystallization, the microcrystalline glass whose main phase was diopside was obtained.