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

摘要
参考文献
相关文章 (15)

全文: PDF (335 KB)
输出: BibTeX | EndNote (RIS)

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S K_α谱、S K_β伴线谱的谱峰位置和谱线形状，以及(S K_α/S K_β)，(Cu L_α/Cu K_α)和(Fe L_α/Fe K_α)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S^2-，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。

关键词：X射线荧光;铜精矿;化学态

Abstract：The peak position and line shape of S K_α, S K_β satellite line, and the ratio of (S K_α/S K_β), (Cu L_α/Cu K_α), and (Fe L_α/Fe K_α) 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 S^2-, 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.

Key words：X-ray fluorescence;Copper concentrate;Valence

收稿日期: 2003-12-25 修订日期: 2004-09-13

中图分类号:

O657.3

通讯作者: 应晓浒

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(06): 952-954.
YING Xiao-hu, CHEN Shao-hong. Determination of the Valence Change of Copper Concentrate Ore Sample during Depositing by Conventional X-Ray Fluorescence Spectrometer . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2005, 25(06): 952-954.

链接本文:

https://www.gpxygpfx.com/CN/Y2005/V25/I06/952