Method for quickly analyzing chemical components in bauxite by X-ray fluorescent spectrometry

Abstract

The invention relates to a method for quickly analyzing chemical components in bauxite by X-ray fluorescent spectrometry. The method comprises the following steps of preparing the bauxite into a platy sample suitable for fluorescence spectrum analysis; carrying out a provocative test on the platy sample of the bauxite, and determining measurement parameters of an X-ray fluorescence spectrometer adaptable to the analysis of the bauxite; carrying out multiple provocative tests on a platy sample of a standard substance according to the set measurement parameters, and determining a measurement mode and a deducting background position of an element according to the content and the characteristic spectral line intensity of each element in the bauxite; determining a linear relation between the content and the characteristic spectral line intensity of the element according to a measurement condition of the bauxite, and drawing out an analytical sensitivity curve of the bauxite; measuring the content of the sample of to-be-measured bauxite by utilizing the sensitivity curve. According to the method for quickly analyzing the chemical components in the bauxite by the X-ray fluorescent spectrometry, the accurate measurement can be carried out on an oxide in the bauxite by only using several minutes; thus, the quality of a material is controlled; the inspection efficiency of the material in production is improved; an analytical period is shortened; the method for quickly analyzing the chemical components in the bauxite by the X-ray fluorescent spectrometry is more suitable for the production requirement of a modern enterprise.

Description

technical field [0001] The invention relates to a method for analyzing chemical components, in particular to a method for rapidly analyzing chemical components in bauxite by X-ray fluorescence spectroscopy. Background technique [0002] In the field of chemical analysis technology, high temperature melting method is often used to analyze oxides in high temperature resistant materials. In the chemical analysis of bauxite, the high-temperature melting method needs to add an appropriate amount of flux to the bauxite powder, then put the mixed powder into a high-temperature melting furnace and heat it to above 1000°C, and keep it warm for more than 1 hour, and then melt it. The bauxite powder is leached out by an appropriate method to obtain a clear solution, and finally the oxides in the solution are accurately measured by an inductively coupled plasma spectrometer. The composition measurement of bauxite requires cumbersome chemical pretreatment, coupled with the later instrum...

AI Technical Summary

Problems solved by technology

The composition measurement of bauxite requires cumbersome chemical pretreatment, coupled with the later instrument measurement process, the analysis method has the disadvantages of long analysis period, cumbersome operation, expensive equipment, and high test cost.

[0003] High-temperature melting plus ICP method is used to measure the oxides in bauxite. Since the oxides in bauxite are as high as 70%, its melting temperature is as high as 1000°C. The melting process of bauxite is complicated, and the measurement process is cumbersome. , the analysis cycle is 6 to 8 hours, which does not meet the needs of modern enterprises and often restricts the casting cycle of metal materials

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