Determination of Total Vanadium Content in Liquid Samples During Wet Vanadium Extraction Process
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.
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