| La负载赤泥-粉煤灰基多孔陶瓷制备研究 |
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| 引用本文： | 王杰,邓伟超,麻永林,邢淑清.La负载赤泥-粉煤灰基多孔陶瓷制备研究[J].矿冶工程,2019,39(5):123-128. |
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| 作者姓名： | 王杰 邓伟超 麻永林 邢淑清 |
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| 作者单位： | 内蒙古科技大学 材料与冶金学院,内蒙古 包头,014010;南京农业大学 工学院,江苏 南京,210000 |
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| 基金项目： | 内蒙古科技大学电磁冶金新技术创新团队资助项目(52303001);
包头市科技局重点科技发展基金(2015Z2010-1) |
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| 摘 要： | 以赤泥和粉煤灰为主要原料,添加造孔剂制备了赤泥-粉煤灰基多孔陶瓷基体,在基体表面负载稀土制备了La负载赤泥-粉煤灰基多孔陶瓷。结果表明:赤泥和粉煤灰比例为8∶2,造孔剂添加量为40%,在1 020 ℃下烧结、保温60 min制备的多孔陶瓷的气孔率为52.5%、体积密度为1.83 g/cm3、碎裂应力为121.26 N,稀土负载量为1.61%,对Cr(Ⅵ)吸附量为0.405 6 mg/g。
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| 关 键 词： | 赤泥 粉煤灰 多孔陶瓷 负载镧 吸附 铬离子 |
| 收稿时间： | 2019-03-20 |
Preparation of La-loaded Red Mud-Fly Ash-based Porous Ceramics |
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| WANG Jie,Deng Chao-wei,MA Yong-lin,XING Shu-qing.Preparation of La-loaded Red Mud-Fly Ash-based Porous Ceramics[J].Mining and Metallurgical Engineering,2019,39(5):123-128. |
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| Authors: | WANG Jie Deng Chao-wei MA Yong-lin XING Shu-qing |
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| Affiliation: | 1.School of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou 014010, Inner Mongolia, China;
2.College of Engineering, Nanjing Agricultural University, Nanjing 210000, Jiangsu, China |
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| Abstract: | Red mud-fly ash-based porous ceramic matrix was prepared with red mud and fly ash as main raw materials by adding pore-forming agent. Then, La-loaded red mud-fly ash-based porous was prepared by loading rare earth on the surface of the matrix. It is found that after sintering process with red mud and fly ash in the ratio of 8∶2, by adding pore-forming agent at an amount of 40%, holding at the temperature of 1 020 ℃ for 60 min, the prepared porous ceramics has the porosity of 52.5%, the bulk density of 1.83 g/cm3 and the fragmentation stress of 121.26 N. The loaded rare earth is 1.61% and the adsorption amount of Cr(Ⅵ) is 0.405 6 mg/g. |
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| Keywords: | red mud fly ash porous ceramic loaded lanthanum adsorption Cr(Ⅵ) |
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