Method for analyzing components of iron ore by using X-ray fluorescence spectrum

Abstract

The invention discloses a method for analyzing the components of iron ore by using an X-ray fluorescence spectrum, which comprises before-analysis preparation (1) and analysis report submission (5), and the steps between the before-analysis preparation (1) and the analysis report submission (5) including molten sample manufacturing (2), detection by an internal standard method (3) and analysis by a calibration curve method (4), wherein in the before-analysis preparation (1) step, a working curve (16) is built; in the detection by an internal standard method (3) step, an internal standard line of a molten sample is measured; and in the analysis by a calibration curve method (4) step, the measurement results of the molten sample are obtained. The method completes the measurement of all elements in the iron ore by melting once, is high in measurement accuracy, simplifies process and time for measurement, reduces cost of the analysis of the components of the iron ore, and is suitable to be applied to the iron and steel industry and researches.

Description

technical field [0001] The invention relates to a method for analyzing the chemical composition of iron ore, in particular to a method for melting iron ore into glass flakes by using a melting method, and using a wavelength dispersive X-ray fluorescence spectrometer to measure and analyze total iron, calcium oxide, A method for analyzing the composition of iron ore by X-ray fluorescence spectroscopy of various chemical components such as magnesium oxide, silicon dioxide, sulfur, phosphorus, titanium dioxide, aluminum oxide, manganese oxide, and vanadium pentoxide. Background technique [0002] The traditional iron ore chemical analysis method uses specific chemical reactions for different elements to determine the content of its chemical composition. With the gradual popularization of instrumental analysis in recent years, X-ray fluorescence spectrometer and ICP emission spectrometer are more and more widely used in the analysis of iron ore, especially wavelength dispersive ...

AI Technical Summary

Problems solved by technology

But these two methods all have some disadvantages: the accuracy of iron element determination cannot be guaranteed after melting once, and iron element is the most important element in iron ore, and basically every iron ore sample will analyze iron element, which means It means that after using the standard method to analyze the iron ore, it is necessary to use other methods to measure the iron content, which is troublesome; when adding the degrinding agent or oxidant before melting the sample, each sample is accurately weighed and added, which is time-consuming ; After the sample analysis is completed, the fluorescence intensity of the measured elements must be printed out and then calculated using a dedicated computer program to obtain the final analysis results. The random software cannot be used for calculation, which is troublesome to operate and prone to errors

Although in this way, the analysis results can be directly obtained by using the operating software of the standard configuration of the instrument without recalculation by other software, which has more general applicability, but it still cannot solve the problem of accurate analysis of iron element and the problem of multiple weighing. question

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