Method for synchronously measuring various elements in metallurgical sundries

A technology for elements and miscellaneous materials, applied in the field of simultaneous determination of multiple elements in metallurgical miscellaneous materials, can solve the problems of difficulty in meeting the requirements of multi-element analysis, cumbersome photometric methods, and inapplicability to metallurgical miscellaneous materials, etc. Quality, extended reach, easy-to-master effects

Inactive Publication Date: 2013-04-03
JIGANG GRP
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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

Method used

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  • Method for synchronously measuring various elements in metallurgical sundries
  • Method for synchronously measuring various elements in metallurgical sundries
  • Method for synchronously measuring various elements in metallurgical sundries

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[0018] Optimizing instrument parameters is a necessary condition for satisfying analysis and testing. The reasons for optimizing instrument parameters in the present invention are detailed as follows:

[0019] 1. The choice of analysis spectrum

[0020] For the selection of the analysis spectrum, usually according to the content of the element to be measured and the interference elements in the sample, the spectrum line with large emission net intensity, high signal-to-background ratio, and less interference of coexisting elements is selected as the analysis spectrum line of the element to be measured. The experiment comprehensively compares multiple spectrum lines of each element, and the selected best analysis spectrum lines of each element are shown in Table 1.

[0021] Table 1. Selection of analysis spectrum

[0022]

[0023]

[0024] 2. Selection of high frequency power

[0025] After the alkali metal elements are ionized, the external electronic structure has a stable structure o...

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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...

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Application Information

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IPC IPC(8): G01N21/73
Inventor 赵贵芬宋兰会魏纯玉徐增琴耿厚安陈俊江李书梅张海燕唐海燕
Owner JIGANG GRP
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