湿法提钒工艺过程液体样品的总钒含量测定
Determination of Total Vanadium Content in Liquid Samples During Wet Vanadium Extraction Process
王宏伟1
作者信息
- 1. 山西兴新安全生产技术服务有限公司,山西 太原 030024
- 折叠
摘要
针对湿法提钒工艺过程液体样品总钒含量测定精度低的问题,提出采用氧化氢分光光度法来提高钒含量测定精度.基于分光光度法原理,选取液体样品进行试验检测,向样品溶液中加水和1 mL氢氧化钠溶液,调节pH值,测定钒浸取溶液、钒盐沉淀后溶液以及废水三类典型溶液的钒含量.结果表明,3种湿法提钒液体试样的标准偏差分别为0.38％、3.5％和7.6％.为检验测定结果的准确性,与高锰酸钾氧化-硫酸亚铁铵滴定法测定结果进行对比,结果一致,这表明提出的总钒测定方法可行,测定结果具有参考价值,对湿法提钒工艺优化有指导意义.
Abstract
In response to the problem of low accuracy in the determination of total vanadium content in liquid samples during the wet vanadium extraction process,a hydrogen oxide spectrophotometric method is proposed to improve the accuracy of vanadium content determination.Based on the principle of spectrophotometry,liquid samples were selected for experimental testing.Water and 1 mL of sodium hydroxide solution were added to the sample solution to adjust the pH value.The vanadium content of three typical solutions,namely vanadium leaching solution,vanadium salt precipitation solution,and wastewater,was determined.The results showed that the standard deviations of the three wet vanadium extraction liquid samples were 0.38％,3.5％,and 7.6％,respectively.To verify the accuracy of the measurement results,a comparison was made with the results obtained by potassium permanganate oxidation ammonium ferrous sulfate titration method,and the results were consistent.This indicates that the proposed method for determining total vanadium is feasible,and the measurement results have reference value,which has guiding significance for optimizing the wet vanadium extraction process.
关键词
分光光度法/湿法提钒/钒含量/试验检测Key words
spectrophotometry/wet vanadium extraction/vanadium content/experimental testing引用本文复制引用
出版年
2024
NETL
NSTL
万方数据