Detection reagents and method for detecting iron ores by X fluorescent spectrometry

Abstract

The invention provides detection reagents and a method for detecting iron ores by an X fluorescent spectrometry, and belongs to the steel-making industrial field. The invention aims to solve existing problems of glass sheets in the prior art of detection reagents and methods for detecting iron ores by X fluorescent spectrometry by means of resetting ingredients of internal standard cobalt powder and a glass fuse sheet. For the first time, lithium tetraborate-lithium metaborate, cobalt sesquioxide, lithium nitrate and lithium bromide are employed to prepare internal standard cobalt powder. Then anhydrous lithium tetraborate-lithium metaborate mixed fusing agent, a sample, the internal standard cobalt powder, lithium nitrate and lithium bromide are employed to prepare a glass fuse sheet. The dosage of the fusing agent is reduced and the detection cost is lowered. The service time of a platinum yellow crucible is prolonged, and the detection cost is further lowered. The accuracy of analysis results is raised.

Description

technical field [0001] The invention belongs to the field of steelmaking industry. Background technique [0002] In the analysis of iron and steel industry, the analysis of iron ore composition is very important. In today's daily production, chemical analysis methods are often used, but there are problems such as long analysis time, complicated process, large human error, and low precision. When the existing X-ray fluorescence spectrometry is used to measure iron ore melting samples, 6g of anhydrous lithium tetraborate, 1g of lithium carbonate, 0.7g of sample, 0.7g of cobalt powder, 1ml of oxidant lithium nitrate (80g / L), and stripping Lithium bromide 1ml (220g / L), placed in a platinum crucible, melted in a high-frequency melting furnace at 1100°C for 19 minutes, made into a cobalt glass sheet, and measured TFe, CaO, MgO, SiO in iron ore with an X-ray fluorescence spectrometer 2 、A1 2 o 3 , P, MnO, TiO 2 and other elements, the internal standard element cobalt of iron w...

AI Technical Summary

Problems solved by technology

[0004] 1. Using anhydrous lithium tetraborate and lithium carbonate to melt the sample will corrode the platinum crucible, and the linearity of the working curve is poor;

[0005] 2. High cost: anhydrous lithium tetraborate is 314.00 yuan / 250g, lithium carbonate is 72.63 yuan / 250g, and the cost of flux for each sample is 7.85 yuan;

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