摘要
煤矸石是煤炭开采和洗选过程排放的固体废弃物,是我国目前年排放量和累计堆存量最大的工业废渣。煤矸石可用于制备重金属吸附材料,实现以废治废。试验将煤矸石在1200℃温度下烧结制成陶粒,然后将陶粒在不同浓度的硝酸铁溶液中浸渍,分离陶粒并烘干,用管式炉对其进行氢气还原处理,得到磁性Fe_(3)O_(4)/莫来石陶粒复合材料,研究陶粒复合材料的物相、微观形貌、磁性能及密度。结果表明,陶粒负载物的物相组成为Fe_(3)O_(4),作为前驱体溶液,硝酸铁溶液浓度越大,陶粒复合材料磁性越强,证实负载工艺可行。
Coal gangue is the solid waste discharged during coal mining and washing processes,and is currently the largest industrial waste residue in China in terms of annual emissions and cumulative storage.Coal gangue can be used to prepare heavy metal adsorption materials,achieving waste treatment by waste.The experiment sinters coal gangue into ceramic particles at a temperature of 1200℃,then immerses the ceramic particles in different concentrations of iron nitrate solution,separates the ceramic particles and dries them,and uses a tube furnace for hydrogen reduction treatment to obtain magnetic Fe_(3)O_(4)/mullite ceramic particle composite materials,and studies the phase,microstructure,magnetic properties,and density of the ceramic particle composite materials.The results show that the phase composition of the ceramic particle loaded material is Fe_(3)O_(4),as a precursor solution,the higher the concentration of iron nitrate solution,the stronger the magnetic properties of the ceramic particle composite material,confirming the feasibility of the loading process.
作者
吉国荣
郝惠兰
高云峰
丰铭
朱保顺
田玉明
JI Guorong;HAO Huilan;GAO Yunfeng;FENG Ming;ZHU Baoshun;TIAN Yuming(College of Materials Science and Engineering,Shanxi Institute of Science and Technology,Jincheng 048011,China;School of Materials Science and Engineering,Taiyuan University of Science and Technology,Taiyuan 030024,China)
出处
《中国资源综合利用》
2024年第7期10-12,共3页
China Resources Comprehensive Utilization
基金
晋城市重点研发项目(20220102、20220104)
山西科技学院校级科研项目(XKY010)
山西科技学院科研启动经费项目(2024011)。
