| 普通X射线荧光光谱仪分析铜精矿样品在储存过程中化学态的变化 |
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| 引用本文： | 应晓浒,陈少鸿.普通X射线荧光光谱仪分析铜精矿样品在储存过程中化学态的变化[J].光谱学与光谱分析,2005,25(6):952-954. |
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| 作者姓名： | 应晓浒 陈少鸿 |
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| 作者单位： | 宁波出入境检验检疫局,浙江,宁波,315012 |
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| 摘 要： | 采用普通X射线荧光光谱仪观察了经不同方式保存的铜精矿样品的SKα谱、SKβ伴线谱的谱峰位置和谱线形状,以及(SKαSKβ) ,(CuLαCuKα)和(FeLαFeKα)的谱线强度比率,根据这些谱线及谱线强度比率存在的一些变化来推断,铜精矿中的硫、铜、铁的化学态在储存过程中发生了变化。研究表明,主要矿相为黄铜矿(含有少量黄铁矿)的铜精矿样品储存2年后,发生了较明显的氧化,有部分S2 - ,Cu 和黄铁矿中的Fe2 被氧化为高价态,硫原子与氧原子相结合。样品的保存方式对样品的氧化程度有很大影响。
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| 关 键 词： | X射线荧光 铜精矿 化学态 |
| 文章编号： | 1000-0593(2005)06-0952-03 |
| 修稿时间： | 2003年12月25 |
Determination of the Valence Change of Copper Concentrate Ore Sample during Depositing by Conventional X-Ray Fluorescence Spectrometer |
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| YING Xiao-hu,CHEN Shao-hong.Determination of the Valence Change of Copper Concentrate Ore Sample during Depositing by Conventional X-Ray Fluorescence Spectrometer[J].Spectroscopy and Spectral Analysis,2005,25(6):952-954. |
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| Authors: | YING Xiao-hu CHEN Shao-hong |
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| Institution: | Ningbo Entry-Exit Inspection and Quarantine Administration, Ningbo 315012, China. |
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| Abstract: | The peak position and line shape of S Kalpha, S Kbeta satellite line, and the ratio of (S Kalpha / S Kbeta), (Cu Lalpha / Cu Kalpha), and (Fe Lalpha / Fe Kalpha) of copper concentrate samples with different depositing methods were determined by a conventional X-ray fluorescence spectrometer. It is concluded that the valence of S, Cu and Fe changed during depositing in accordance with the changes of the lines, Copper concentrate sample (main mine phase is chalcopyrite, containing a little pyrite) was oxidized apparently after 2 years depositing. Part of S2-, Cu+ and Fe2+ in the sample were oxidized to high valence, and the sulphur atom combined with oxygen atom. The oxidation of the sample was influenced markedly by the storing method. |
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| Keywords: | X-ray fluorescence Copper concentrate Valence |
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