Method for synchronously measuring various elements in metallurgical sundries

Abstract

The invention belongs to the technical field of test of metallurgical materials, and particularly relates to a method for synchronously measuring various elements in the metallurgical sundries. The method for synchronously measuring various elements in the metallurgical sundries comprises the following steps: (1) processing a sample; (2) drawing a working curve; and (3) measuring the test sample. According to the method for synchronously measuring various elements in the metallurgical sundries, the proper sample processing method is selected, the substrates are flexibly matched, and the parameters of instruments are reasonably optimized, so that the accuracy in measurement of the various elements in the metallurgical sundries under different species and wide scope can be ensured.

Description

technical field [0001] The invention belongs to the technical field of metallurgical material testing, and in particular relates to a simultaneous determination method for multiple elements in metallurgical miscellaneous materials. Background technique [0002] Alkali metals mainly include potassium and sodium. The blast furnace itself has a certain ability to discharge alkali. Alkali metals have little effect on the blast furnace within the control range. However, the content of alkali metal in the iron ore entering the furnace is too much, which exceeds the alkali capacity of the blast furnace, which will form alkali metal enrichment, which will easily cause the softening temperature to drop, and the reflow zone to move upward, which is not conducive to the development of indirect reduction, resulting in an increase in the coke ratio. . Alkali metals in the pellets will cause abnormal expansion of the pellets, causing serious pulverization, deteriorating the gas permeabil...

AI Technical Summary

Problems solved by technology

[0005] At present, when metallurgical miscellaneous materials such as iron ore are processed, one method is to use the melting method, but this method will additionally introduce sodium element to wait for the element to be measured; the other is to dissolve with acid, and the acid used is generally a mixture of hydrochloric acid and nitric acid. Mixed acid, but the mixed acid is not suitable for various metallurgical impurities, and the solution obtained after the sample is dissolved is turbid

[0006] The traditional photometric method has cumbersome steps, difficult to control operating conditions, and high reagent consumption; atomic absorption spectrometry is relatively simple, but due to its narrow measurement range and only single-element determination, it is difficult to meet the requirements of multi-element analysis of a large number of samples

Although X-ray fluorescence is simple and fast, it is easily affected by the matrix, and is only suitable for a single species of similar matrix, and a complete set of standard substances is required to establish a curve

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