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Preparation and analysis method of X-ray fluorescent fuse piece for determining molybdenum content in molybdenum oxide

A technology of molybdenum oxide and content, which is applied in measuring devices, analyzing materials, and using wave/particle radiation for material analysis, etc., can solve problems such as inaccurate analysis results, reduce environmental pollution, save resources and energy, and use less chemical reagents Effect

Pending Publication Date: 2020-11-03
NANJING IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to ensure the accuracy of the analysis results, melting analysis is used. The key to this method is that the temperature for preparing glass frits is 950-1150°C, but the melting point of molybdenum oxide balls is 790°C. High temperatures will produce sublimation, resulting in inaccurate analysis results.

Method used

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  • Preparation and analysis method of X-ray fluorescent fuse piece for determining molybdenum content in molybdenum oxide
  • Preparation and analysis method of X-ray fluorescent fuse piece for determining molybdenum content in molybdenum oxide
  • Preparation and analysis method of X-ray fluorescent fuse piece for determining molybdenum content in molybdenum oxide

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Experimental program
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Effect test

Embodiment 1

[0036] Select 5 internal standard samples and try to select the production coverage. Weigh 0.2000g of molybdenum oxide (molybdenum oxide ball) and 0.2000g of calcium oxide, then weigh 1.0000g of lithium nitrate and 1.0000g of sodium carbonate-free, put them into a porcelain crucible, and stir evenly. Weigh 8.0000g of lithium tetraborate flux and 0.200g of ammonium iodide release agent into a platinum crucible, stir evenly with a plastic stirring rod, and slowly pour the evenly mixed porcelain crucible reagents into a platinum crucible with the reagents upside down.

[0037] Select the melting curve of molybdenum oxide (molybdenum oxide ball) on the electric melting furnace, place the above-mentioned platinum crucible with reagents on the electric melting furnace, click the confirm and start button, and make a uniform and transparent glass sheet in about 17 minutes .

[0038] According to the establishment steps of the working curve of the X-ray fluorescence spectrometer, sele...

Embodiment 2

[0040] Weigh 0.2000g of molybdenum oxide (molybdenum oxide ball) and 0.2000g of calcium oxide, then weigh 1.0000g of lithium nitrate and 1.0000g of sodium carbonate-free, put them into a porcelain crucible, and stir evenly. Weigh 8.0000g of lithium tetraborate flux and 0.200g of ammonium iodide release agent into a platinum crucible, stir evenly with a plastic stirring rod, slowly pour the uniformly mixed porcelain crucible reagent into a platinum crucible containing the reagent,

[0041] Table 1 Internal standard content and number

[0042] serial number name serial number Mo content / % 1 Molybdenum Oxide / Molybdenum Oxide Balls 58.78 55.78 2 Molybdenum Oxide / Molybdenum Oxide Balls 9-6061 60.20 3 Molybdenum Oxide / Molybdenum Oxide Balls 6-6058 57.74 4 Molybdenum Oxide / Molybdenum Oxide Balls 4-6055 57.07 5 Molybdenum Oxide / Molybdenum Oxide Balls 1-6053 60.45

[0043] The procedure for setting the electric melting furnace...

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Abstract

The invention discloses a preparation and analysis method of an X-ray fluorescence fuse piece for determining molybdenum content in molybdenum oxide, and relates to the technical field of metallurgical component determination and analysis, an inhibitor is added, low-temperature pre-melting is carried out under the action of the inhibitor, and then a flux and a pre-melted product are melted into astable, uniform and transparent glass sheet under a high-temperature state. Instrument analysis is adopted to replace chemical analysis, the problems that chemical analysis is serious in pollution, long in period, too high in personnel quality requirement and the like are solved, the whole analysis period is short, operation steps are few, and rapid, accurate and environment-friendly measurement is achieved. The method can be popularized and applied to production process control, acceptance check before use and the like of metallurgical production enterprises and iron and steel enterprises, and greatly promotes improvement of instrument analysis automation in the field of metallurgical analysis.

Description

technical field [0001] The invention relates to the technical field of determination and analysis of metallurgical components, in particular to a method for preparing and analyzing an X-ray fluorescent frit for determining the content of molybdenum in molybdenum oxide. Background technique [0002] At present, most steel mills are using molybdenum oxide (molybdenum oxide balls) instead of ferromolybdenum in the metallurgical process, which can reduce steelmaking costs and reduce the reduction process to save resources and energy. However, the current analysis of molybdenum oxide balls is only YB / T5039-2012 Determination of molybdenum oxide molybdenum content lead molybdate gravimetric method (chemical method), the principle of the method is to melt the sample with sodium peroxide, or recover the residue after dissolving with nitric acid or hydrofluoric acid, so that molybdenum is converted into soluble molybdenum After separating the interfering elements, molybdenum reacts w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N23/2202G01N23/223
CPCG01N23/2202G01N23/223G01N2223/076G01N2223/1016G01N2223/312
Inventor 赵宁叶晓晴肖师杰孙炜曹蓉刘素祥
Owner NANJING IRON & STEEL CO LTD
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