|
| Determination of Manganese Content in Lithium-Enriched Solid Solution |
| Received:December 25, 2014 Revised:February 28, 2015 |
| View Full Text View/Add Comment Download reader |
| DOI：doi:10.3969/j.issn.2095-1035.2015.02.009 |
| KeyWord:lithium-enriched solid solution; ammonium nitrate; ferrous ammonium sulfate; manganese content |
| Author | Institution |
| MA Xiaoli |
北京有色金属研究总院 动力电池研究中心，北京 |
| BAI Xiaoyan |
北京有色金属研究总院 动力电池研究中心，北京 |
| LU Huaquan |
北京有色金属研究总院 动力电池研究中心，北京 |
| LIU Meizi |
北京有色金属研究总院 动力电池研究中心，北京 |
| TANG Haibo |
北京有色金属研究总院 动力电池研究中心，北京 |
| ZHANG Chao |
北京有色金属研究总院 动力电池研究中心，北京 |
| LU Shigang |
北京有色金属研究总院 动力电池研究中心，北京 |
|
| Hits: 1476 |
| Download times: 0 |
| Abstract: |
| In order to formulate the production process of lithium-enriched solid anode material, it is necessary to accurately determine the content of manganese. Ammonium nitrate is employed as an oxidant and phosphoric acid is used to fix the valence of manganese. The content of Mn can be determined by titration of ferrous ammonium sulfate titration. In addition, an optimized experiment was conducted regarding the conditions of measurement process such as sample dissolution method, temperature control, phosphoric acid volume, the temperature control when adding NH4NO3 and NH4NO3 dosage. Experiment conditions were optimized as follows: 0.300 0 g of the sample, 10mL of hydrochloric acid for sample digestion solution , 10mL of H3PO4 added, oxidation of ammonium nitrate(1.2 g) at 240 ℃ The recovery was 99.70%~100.50%, and the relative standard deviation was less than 0.24%. The proposed method is simple, rapid, and it can be applied for practical analysis needing no masking agent. |
| Close |
|
|
|