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X-fluorescence film-pressing method for measuring content of components in ferric oxide powder

A technology of iron oxide powder and component content, which is applied in the field of chemical analysis, can solve the problems of easy introduction of impurities, complicated operation, and influence on the accuracy of analysis results, etc., and achieve the goal of widening the analysis range, simple operation, good accuracy and reproducibility Effect

Inactive Publication Date: 2012-11-21
HBIS COMPANY LIMITED HANDAN BRANCH COMPANY
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Problems solved by technology

At present, the common method for determining the impurity components in iron oxide powder is inductively coupled plasma-atomic emission spectrometry (ICP-AES). The standard solution series needs to be re-prepared, the operation is more complicated, and impurities are easily introduced, which affects the accuracy of the analysis results

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  • X-fluorescence film-pressing method for measuring content of components in ferric oxide powder
  • X-fluorescence film-pressing method for measuring content of components in ferric oxide powder
  • X-fluorescence film-pressing method for measuring content of components in ferric oxide powder

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Embodiment Construction

[0015] The method for determining the content of components in iron oxide powder using the X-ray fluorescent tablet method is determined by an X-ray fluorescence spectrometer. Firstly, the spectral lines with high intensity and signal-to-background ratio are selected as the analysis curves, and the analysis lines, crystals, detectors, peak 2θ angles and measurement time of the seven elements of aluminum, silicon, phosphorus, sulfur, potassium, calcium, and manganese They are: aluminum Al-Ka PET PC 144.784°30s, phosphorus P-Ka Ge PC 141.096°20s, sulfur S-Ka Ge PC 110.718°20s, potassium K-Ka LiF1 PC 136.692°30s, calcium Ca-Ka LiF1 PC 113.118 °20s, manganese Mn-Ka LiF1 SC, set analysis conditions: light tube voltage 50KV, current 50mA, no filter, no attenuator. Then prepare iron oxide powder standard sample one and iron oxide powder standard sample two, wherein the method for adding a small amount of national standard slag samples in iron oxide powder standard sample one has prod...

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Abstract

The invention discloses an X-fluorescence film-pressing method for measuring content of components in ferric oxide powder, which comprises the following steps of: A, preparing a standard sample film A; B, preparing a standard sample film B; C, preparing a sample film to be detected; and D, measuring the content of impurity components in the ferric oxide powder. By the method, a problem that the content of various components in the ferric oxide powder cannot be jointly measured is solved, the content of various components in the ferric oxide powder can be quickly and accurately measured, the method is quick and accurate, an analysis range of an X-fluorescence spectrograph is widened, and a production factory can timely master main chemical compositions of the ferric oxide powder so as to better control a production process. The method has good instructive significance for improving the grade of ferric oxide powder in a cold rolling plant. The method can be carried out by the conventional instruments and equipment, and has the characteristics of simple operation, simple implementation, and high accuracy and repeatability.

Description

technical field [0001] The invention relates to a chemical analysis method, in particular to a method for measuring component content in iron oxide powder by applying an X-ray fluorescent tablet method. Background technique [0002] Steel plate pickling is an indispensable process in cold rolling production. After the steel plate is pickled with hydrochloric acid, a large amount of waste acid solution is produced, and its main components are ferrous chloride and hydrochloric acid. According to the requirements of environmental protection and circular economy, the waste liquid needs to be recycled. The general recovery method is to regenerate the waste acid solution to generate regenerated hydrochloric acid, and return it to the pickling section for continued use. At the same time, the iron in the spent acid solution turns into iron oxide powder. Iron oxide powder is a widely used industrial material, currently mainly used in coatings, paints, inks and magnetic materials a...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N23/223G01N1/28
Inventor 吝章国马爱方冯士娟郑连杰陈剑赵超周冀锋
Owner HBIS COMPANY LIMITED HANDAN BRANCH COMPANY
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