Microwave activation of coal gangue for Al compound

International Conference on Manufacturing Technology, Materials and Chemical Engineering

材料科学;化学工业

Lan, Xijie^1 ; Liu, Shuhong^1 ; Jing, Yuan^1

College of Environment and Chemical Engineering, Dalian Jiaotong University, Dalian

116028, China^1

关键词: Coal gangues;    Microwave activation;    New species;    Water baths;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/592/1/012023/pdf
DOI  :  10.1088/1757-899X/592/1/012023

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The coal gangue was activated by microwave. From the results of XRD and 27AlMAS NMR, we can speculate the reactions occurred and new species were generated during the microwave activation process. Effects on power grades of microwave oven, kinds of additives, time of microwave activation, temperatures of water bath and ratio of coal gangue to additives were investigated. Much higher extraction percent of Al (>50) has been obtained with KOH as additive, ratio of coal gangue to additive is 1:2, power of microwave oven is 595W and time of microwave activation is 20 min.