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投稿时间：2020-12-14 修订日期：2020-12-25 录用日期：2020-12-28 网络发布日期：2021-04-20
投稿时间：2020-12-14 修订日期：2020-12-25 录用日期：2020-12-28 网络发布日期：2021-04-20
中文摘要: 采用X射线衍射（XRD）法分析了含有不同质量分数钾、钙氟化盐的冰晶石、氧化铝电解质体系的物相结构。得到了不同质量分数氟化钾和氟化钙影响电解质中物相形成的规律。铝电解质体系内物相的变化影响XRD法分析铝电解质分子比的结果。根据所得电解质样品的物相形成规律对XRD法分析分子比进行改进，对比分析改进前后电解质样品的分子比。结果表明，改进后XRD法适合分析含有高质量分数钾、钙氟化盐的铝电解质体系的分子比。
Abstract:XRD was used to investigate phase compositions of solidified molecular electrolyte based on Na3AlF6-AlF3-KF-CaF2-Al2O3 system. Influence of different mass fraction of KF and CaF2 on phase formation in electrolyte was obtained. Change of phase in aluminum electrolyte system affects result of XRD method in analyzing molecular ratio of aluminum electrolyte. XRD method is improved to analyze molecular ratio of electrolyte sample according to phase formation law. Molecular ratio of electrolyte sample before and after improvement was compared. The results show that improved XRD method is suitable for analyzing molecular ratio of aluminum electrolyte containing high mass fraction of potassium and calcium fluoride salt.
keywords: aluminum electrolysis XRD KF CaF2 molecular ratio
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基金项目:山西省高等学校科技创新项目（2019L961）；山西省吕梁市重点研发项目（2019109）
| 作者 | 单位 | |
| 侯剑峰* | 吕梁学院 化学化工系 | air0164@163.com |
| 杨永强 | 矿冶科技集团有限公司 |
| Author Name | Affiliation | |
| HOU Jian-feng | Department of chemistry and chemical engineering, Lvliang University | air0164@163.com |
| YANG Yong-qiang |
引用文本：
侯剑峰,杨永强.XRD法分析含钾钙氟化盐的铝电解质体系分子比的改进[J].有色金属（冶炼部分）,2021(5):41-44.
HOU Jian-feng,YANG Yong-qiang.Improvement of Molecular Ratio of Aluminum Electrolyte Containing Potassium and Calcium Fluoride Measured by XRD[J].Nonferrous Metals (Extractive Metallurgy),2021(5):41-44.
侯剑峰,杨永强.XRD法分析含钾钙氟化盐的铝电解质体系分子比的改进[J].有色金属（冶炼部分）,2021(5):41-44.
HOU Jian-feng,YANG Yong-qiang.Improvement of Molecular Ratio of Aluminum Electrolyte Containing Potassium and Calcium Fluoride Measured by XRD[J].Nonferrous Metals (Extractive Metallurgy),2021(5):41-44.
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