|
|||||
|
|
| PVC-MnO2的制备及其对锂离子的吸附行为 | |
| 引用本文： | 王宏岩,黄凯,张玉生,郑诗礼,张懿,李平.PVC-MnO2的制备及其对锂离子的吸附行为[J].过程工程学报,2018,18(4):821-827. |
| 作者姓名： | 王宏岩 黄凯 张玉生 郑诗礼 张懿 李平 |
| 作者单位： | 1. 北京科技大学冶金与生态工程学院，北京 100083 2. 中国科学院过程工程研究所湿法冶金清洁生产技术国家工程实验室，北京 100190 3. 山东钢铁济钢合金科技有限公司，山东 济南 250000 |
| 基金项目： | 亚熔盐法处理低品位硼镁矿制备过硼酸钠清洁化工新过程的基础研究 |
| 摘 要： | MnCO3和Li2CO3经高温煅烧合成Li4Mn5O12，再与聚氯乙烯(PVC)和N,N-二甲基甲酰胺溶液混合，干燥、酸洗后制得粒径3?4 mm的多孔球形PVC?MnO2锂离子筛，用其吸附Li离子. 结果表明，PVC?MnO2吸附Li离子的反应符合Langmuir方程和拟二级动力学方程，吸附焓变为0.358 kJ/mol，吸附反应为吸热反应，Li离子最高吸附量可达23.4 mg/g. |
| 关 键 词： | PVC-MnO2 锂离子筛 成型 吸附行为 动力学 吸附焓变 |
| 收稿时间： | 2017-10-16 |
Preparation of PVC-MnO2 and its adsorption behavior to Li ion |
|
| Hongyan WANG Kai HUANG Yusheng ZHANG Shili ZHENG Yi ZHANG Ping LI.Preparation of PVC-MnO2 and its adsorption behavior to Li ion[J].Chinese Journal of Process Engineering,2018,18(4):821-827. | |
| Authors: | Hongyan WANG Kai HUANG Yusheng ZHANG Shili ZHENG Yi ZHANG Ping LI |
| Affiliation: | 1. School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijng 100083, China 2. National Engineering Lab for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China 3. Shandong Steel Jisteel Alloy Technology Co., Ltd., Jinan, Shandong 250000, China |
| Abstract: | MnCO3 and Li2CO3 as raw materials were mixed and calcined to prepare Li4Mn5O12 powders, which was further added into the polyvinyl chloride (PVC) and N,N-Dimethylformamide (DMF) solutions to form suspensions. The suspensions were dried and acid-washed to obtain spherical PVC?MnO2 with 3?4 mm size. PVC?MnO2 was used to adsorption Li ion. The results showed that the adsorption of Li ion onto PVC?MnO2 followed the Langmuir isotherm model and the pseudo-second order kinetic equation. The enthalpy change (0.358 kJ/mol) was positive indicating the adsorption of Li ion onto PVC?MnO2 was an endothermic reaction, and the maximum adsorption capacity of Li ion was 23.4 mg/g. |
| Keywords: | PVC-MnO2 Granulation Lithium ion-sieves Adsorption behavior Kinetics Adsorption enthalpy change |
| 本文献已被 CNKI 等数据库收录！ | |
| 点击此处可从《过程工程学报》浏览原始摘要信息 | |
| 点击此处可从《过程工程学报》下载全文 | |