+高级检索
高锰酸钾氧化-亚铁滴定法测定钒铝合金中的钒量
DOI:
作者:
作者单位:

西北有色金属研究院

作者简介:

通讯作者:

中图分类号:

基金项目:

有色金属行业标准起草项目


Determination of Vanadium in Vanadium-Aluminium alloys by KMnO4-Ferrous titration method
Author:
Affiliation:

Northwest Institute for Nonferrous Metal Research

Fund Project:

Science and Technology Innovation Platform with Guangdong Provincial Department of Industry-Academy Research (2012B090600051)

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    采用硫酸-磷酸-硝酸混酸溶解试样,高锰酸钾氧化-硫酸亚铁铵滴定法测定钒铝中间合金中的钒量。考察了试样分解方法、钒的氧化条件、高锰酸钾用量、亚硝酸钠用量及共存离子干扰等一系列条件对钒测定结果的影响,确定了最佳实验条件。对含钒量不同的6个钒铝合金样品中钒量进行11次测定,测定结果在49.45%~83.33%之间,方法的相对标准偏差(RSD)均为0.2%左右,加标回收率在98.2%~102.5%之间。通过与其他7家实验室间的比对试验,测定结果一致性好、无明显系统偏差。所建立的方法具有操作简便、快速,测定含量范围宽,结果准确等特点。适用于各种钒铝合金中钒量的测定。

    Abstract:

    A method for the determination of Vanadium in Vanadium-Aluminium master alloys by KMnO4 -Ferrous titration method is presented .The sample was digested by H2SO4-H3PO4-HNO3. The influence of the method for sample digestion; the amount of KMnO4 and NaNO2; the interference of co-existence elements were discussed so as to confirm the best condition. The proposed method was applied to determine the Vanadium contents in six Vanadium-Aluminium master alloy samples whose Vanadium content was different from 49.45% to 83.33%. The results showed that the relative standard deviations(n=11) were all about 0.2%, and the recoveries were in the range of 98.2%~102.5%.Compared with 7 different laboratories , the results were consistent without significant deviation. This method has the advantages of fast,accurate and a wide analytical range. It is suitable for determination Vanadium in Vanadium-Aluminium master alloys.

    参考文献
    相似文献
    引证文献
引用本文

孙宝莲.高锰酸钾氧化-亚铁滴定法测定钒铝合金中的钒量[J].稀有金属材料与工程,2016,45(10):2729~2733.[sunbaolian. Determination of Vanadium in Vanadium-Aluminium alloys by KMnO4-Ferrous titration method[J]. Rare Metal Materials and Engineering,2016,45(10):2729~2733.]
DOI:[doi]

复制
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2014-09-09
  • 最后修改日期:2015-01-17
  • 录用日期:2015-06-11
  • 在线发布日期: 2016-11-10
  • 出版日期: