高温熔融-电感耦合等离子体原子发射光谱法测定含铁尘泥中5种有害元素

doi:10.13228/j.boyuan.issn1000-7571.011590

摘要
图/表
参考文献
相关文章 (15)

全文: PDF (735 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要准确、快速地测定含铁尘泥中有害元素,对含铁尘泥节能降废项目研究及综合利用有着重要的指导意义。实验针对含铁尘泥试样因含碳量高,导致常规酸溶解方法如果不增加除碳步骤则很难完全分解试样的问题,采用高温熔融法将试样制成熔融液后倾倒于稀酸中溶解的方法,解决了碳含量高难溶解的问题。采用四硼酸锂-碳酸锂混合熔剂在高温下将试样熔融,熔融液高温倾倒于稀酸中制成澄清溶液,由于骤冷,试样炸裂成微小玻璃珠,无迸溅,操作简单,使得后续溶解过程快速完成,从而建立了电感耦合等离子体原子发射光谱(ICP-AES)测定P、Pb、K、Na、Zn共5种有害元素的方法。按照实验方法测定含铁尘泥中P、Pb、K、Na、Zn,测定值的相对标准偏差(RSD,n=9)在1.4%～5.7%之间,加标回收率在96%～110%之间。研究结果表明方法能够满足含铁尘泥样品中5种元素的定量分析要求。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	吴章海

关键词 ：含铁尘泥, 电感耦合等离子体原子发射光谱法(ICP-AES), 高温熔融, 干扰消除, 磷, 铅, 钾, 钠, 锌

Abstract：The accurate and rapid determination of harmful elements in iron-bearing dust is of great significance for the energy conservation and comprehensive utilization of iron-bearing dust. Since the content of carbon in iron-bearing dust samples is high, it is difficult to completely decompose the sample using the conventional acid dissolution method if the carbon removal procedures are not added. Aiming at this problem, the sample was melted at high temperature and then poured into a dilute acid solution. The proposed method solved the problem that the sample was hardly dissolved due to the high carbon content. In experiments, the sample was melted at high temperature using lithium tetraborate and lithium carbonate mixture as flux. The molten sample at high temperature was poured into a dilute acid solution to prepare a clear solution. Due to the rapid cooling, the sample was busted into tiny glass beads without splashing. The operation was simple,so that the subsequent dissolution process could be completed quickly. Consequently,the determination method of 5 harmful elements (including P, Pb, K, Na and Zn) in iron-bearing dust by inductively coupled plasma atomic emission spectrometry(ICP-AES) was established.The proposed method was applied to the determination of P,Pb,K,Na and Zn in iron-bearing dust. The relative standard deviations (RSD, n=9) of determination results were between 1.4% and 5.7%. The recoveries were between 96% and 110%. The experimental results indicated that the proposed method could meet the quantitative analysis requirements of 5 elements in iron-bearing dust samples.

Key words： iron-bearing dust inductively coupled plasma atomic emission spectrometry(ICP-AES) high temperature fusion interference elimination phosphorus lead potassium sodium zinc

收稿日期: 2021-08-25

ZTFLH:	O657.31
	TF547

作者简介: 吴章海(1984—),男,工程师,大学本科,主要从事光谱分析和冶金分析工作;E-mail:Wuzhanghai@hbisco.com

引用本文:

吴章海. 高温熔融-电感耦合等离子体原子发射光谱法测定含铁尘泥中5种有害元素[J]. 冶金分析, 2022, 42(4): 57-63. WU Zhanghai. Determination of five harmful elements in iron-bearing dust by high temperature fusion-inductively coupled plasma atomic emission spectrometry. , 2022, 42(4): 57-63.

链接本文:

http://yjfx.chinamet.cn/CN/10.13228/j.boyuan.issn1000-7571.011590 或 http://yjfx.chinamet.cn/CN/Y2022/V42/I4/57

[1] 苏步新,张建良.基于主成分分析的烧结铁矿粉性能评价[J].烧结球团,2014,39(6):1-6.
SU Buxin,ZHANG Jianliang.Evaluation of sintering iron ore fines performance based on principal component analysis[J].Sintering and Pelletizing,2014,39(6):1-6.
[2] 唐忠勇,何环宇,裴文博,等.利用冶金尘泥直接还原的试验研究[J].烧结球团,2011,36(6):41-44.
TANG Zhongyong,HE Huanyu,PEI Wenbo,et al.Experimental study on using metallurgical dust and sludge for direct reduction[J].Sintering and Pelletizing,2011,36(6):41-44.
[3] 庄昌凌,刘建华,崔衡,等.炼钢过程含铁尘泥的基本物性与综合利用[J].北京科技大学学报,2011,33(增刊1):186-191.
ZHUANG Changling,LIU Jianhua,CUI Heng,et al.Basic properties and comprehensive utilization of iron-containing sludge and dust in the steelmaking process[J].Journal of University of Science and Technology Beijing,2011,33(Suppl.1):186-191.
[4] 刘伟.含铁尘泥X荧光光谱分析方法的试验研究[J].安徽工业大学学报(自然科学版),2009,29(1):45-48.
LIU Wei.Experimental study on fluorescent X-ray spectrum analysis for ferruginous marl[J].Anhui University of Technology(Natural Science),2009,29(1):45-48.
[5] 宋义,郭芬,谷松海.X射线荧光光谱法同时测定煤灰中的12 种成分[J].光谱学与光谱分析,2008,28(6):1430-1434.
SONG Yi,GUO Fen,GU Songhai.Determination of 12 elements in coal ash by X-ray fluorescence spectrometry[J].Spectroscopy and Spectral Analysis,2008,28(6):1430-1434.
[6] 丁美英,乔宇,张桂梅.电感耦合等离子体原子发射光谱法测定炉渣中10种化学成分[J].冶金分析,2011,31(9):38-41.
DING Meiying,QIAO Yu,ZHANG Guimei.Determination of ten chemical compositions in slags by inductively coupled plasma atomic emission spectrometry[J].Metallurgical Analysis,2011,31(9):38-41.
[7] 王力强,王家松,吴良英,等.偏硼酸锂熔融-电感耦合等离子体原子发射光谱法测定锆矿石中10种元素[J].冶金分析,2020,40(9):63-69.
WANG Liqiang,WANG Jiasong,WU Liangying,et al.Determination of ten elements in zirconium ores by lithium metaborate fusion-inductively coupled plasma atomic emission spectrometry[J].Metallurgical Analysis,2020,40(9):63-69.
[8] 罗海霞.碱熔-电感耦合等离子体原子发射光谱法测定富铟烟灰中铟[J].冶金分析,2021,41(5):51-56.
LUO Haixia.Determination of indium in indium-rich soot by alkali fusion-inductively coupled plasma atomic emission spectrometry[J].Metallurgical Analysis,2021,41(5):51-56.
[9] 刘锦锐,加明.电感耦合等离子体原子发射光谱法测定光致发光材料钼酸钙中19中微量杂质元素[J].冶金分析,2021,41(8):76-83.
LIU Jinrui,JIA Ming.Determination of nineteen trace impurities in photoluminescent material of calcium molybdate by lithium metaborate fusion-inductively coupled plasma atomic emission spectrometry[J].Metallurgical Analysis,2021,41(8):76-83.