Method for measuring elements in pig iron by acid oxidation melting sample preparation-X-ray fluorescence spectrometry

• Main Authors: WANG ZHAO, ZHAO CHAO, JIA SHIQING, WU NAN, FU YAFENG, WANG YUJUAN, YANG SHANSHAN
• Format: Patent
• Language: Chinese; English
• Published: 13.10.2023
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention provides a method for measuring elements in pig iron through acid oxidation melting sample preparation-X-ray fluorescence spectrometry, and relates to the technical field of pig iron quality detection. In the invention, the dilute nitric acid solution can react with pig iron to oxidize metal iron Fe into ferric nitrate Fe (NO3) 3. In the continuous heating process, iron nitrate is hydrolyzed into ferric hydroxide and finally becomes ferric oxide, corrosion of metal iron to the platinum yellow crucible under the high-temperature condition is avoided, the platinum yellow crucible can be mixed with a fluxing agent to be directly molten for sample preparation, operation is easy and convenient, and simultaneous determination of multiple elements can be achieved. In addition, the research object of the method is only a pig iron sample, a satisfactory effect can be achieved without measuring the burning loss of the sample, and the detection efficiency is greatly improved. 本发明提供一种酸氧化熔融制样-X射线荧光光谱法测定生铁中元素