为了确定锌冶炼废渣的物相组分,以X射线衍射(XRD )分析和能谱(EDS )为基础方法,对锌冶炼废渣进行了物相分析。结果表明,将与扫描电镜关联的EDS和XRD联合使用,通过对多相混合的冶炼废渣X RD粉末衍射图谱和物相标准谱线进行物相对照分析,结合扫描电镜微区衍射能谱图的元素含量测定,能够准确确定锌冶炼废渣的物相组成,为冶炼废渣的综合利用提供依据。在实验条件下,测得锌冶炼氧粉酸浸渣样品的主要元素为Pb、S、O和Zn ,主要物相为 PbSO4和ZnS ;铜镉渣的主要元素有O、Zn、Al和Cd ,主要物相是ZnS、ZnSO4?6H2 O ,而Cd元素以CdS、CdSO4、CdO和单质Cd的形式存在于铜镉渣中;布袋氧粉的主要元素是Zn、O、Pb和S ,主要物相为ZnO和ZnS。
In order to ascertain the phase composition of zinc smelting slag ,the X‐ray diffraction (XRD) and energy dispersive spectrum (EDS) were adopted .The phase analysis results indicated that the phase com‐position of zinc smelting slag could be accurately determined by XRD and EDS which were associated with scanning electron microscope(SEM) .That is ,the X‐ray powder diffraction patterns of multi‐phase mixed smelting slag were compared and analyzed with the standard spectral lines of phases ,and the content of ele‐ments was determined according to the micro area diffraction EDS of scanning electron microscope .It pro‐vided basis for the comprehensive utilization of smelting slag .Under the experimental conditions ,it was found that the oxygen pow der acid leaching residue sample of zinc smelting slag mainly included Pb ,S ,O and Zn .The main phases were PbSO4 and ZnS .The elements in copper‐cadmium slag mainly included O , Zn ,Al and Cd ,and the main phases were ZnS and ZnSO4 ?6H2 O .The cadmium existed in copper‐cadmi‐um reside in the form of CdS ,CdSO4 ,CdO and Cd .The main elements in bag filter oxide powder were Zn ,O ,Pb and S ,and the main phases were ZnO and ZnS .
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