Detection reagents and method for detecting iron ores by X fluorescent spectrometry

A fluorescence spectrometry and detection reagent technology, applied in the field of steelmaking industry, can solve problems such as high cost, poor linearity of production working curve, erosion of platinum yellow crucible, etc., and achieve the effects of reducing detection cost, improving accuracy and prolonging service time.

Active Publication Date: 2014-01-22
吉林建龙钢铁有限责任公司
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Problems solved by technology

[0004] 1. Using anhydrous lithium tetraborate and lithium carbonate to melt the sample will corrode the platinum crucible, and the linearity of the working curve ...

Method used

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  • Detection reagents and method for detecting iron ores by X fluorescent spectrometry
  • Detection reagents and method for detecting iron ores by X fluorescent spectrometry
  • Detection reagents and method for detecting iron ores by X fluorescent spectrometry

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Embodiment Construction

[0016] The present invention prepares internal standard cobalt powder: take anhydrous lithium tetraborate-lithium metaborate mixed flux, dicobalt trioxide and mix in a beaker, place in a Pt-Au crucible, add lithium nitrate and lithium bromide, put into a high-frequency melting pot The sample furnace is melted at a temperature of 1100°C: the first heating time is 3 minutes, the temperature is 600°C; the second heating time is 3 minutes, the temperature is 1100°C; the melting time is 4 minutes, the temperature is 1100°C; Take out the vibration grinding sample in the vibrating mill for 2 minutes, bottle it and put it in a desiccator for later use;

[0017] Lithium tetraborate-lithium metaborate ∶ Cobalt trioxide ∶ lithium nitrate ∶ Lithium bromide=15 ∶ 1 ∶ 0.6 ∶ 0.4;

[0018] Preparation of glass frits: Take the burned and cooled anhydrous lithium tetraborate-lithium metaborate mixed flux, sample, internal standard cobalt powder, lithium nitrate, and lithium bromide in a po...

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Abstract

The invention provides detection reagents and a method for detecting iron ores by an X fluorescent spectrometry, and belongs to the steel-making industrial field. The invention aims to solve existing problems of glass sheets in the prior art of detection reagents and methods for detecting iron ores by X fluorescent spectrometry by means of resetting ingredients of internal standard cobalt powder and a glass fuse sheet. For the first time, lithium tetraborate-lithium metaborate, cobalt sesquioxide, lithium nitrate and lithium bromide are employed to prepare internal standard cobalt powder. Then anhydrous lithium tetraborate-lithium metaborate mixed fusing agent, a sample, the internal standard cobalt powder, lithium nitrate and lithium bromide are employed to prepare a glass fuse sheet. The dosage of the fusing agent is reduced and the detection cost is lowered. The service time of a platinum yellow crucible is prolonged, and the detection cost is further lowered. The accuracy of analysis results is raised.

Description

technical field [0001] The invention belongs to the field of steelmaking industry. Background technique [0002] In the analysis of iron and steel industry, the analysis of iron ore composition is very important. In today's daily production, chemical analysis methods are often used, but there are problems such as long analysis time, complicated process, large human error, and low precision. When the existing X-ray fluorescence spectrometry is used to measure iron ore melting samples, 6g of anhydrous lithium tetraborate, 1g of lithium carbonate, 0.7g of sample, 0.7g of cobalt powder, 1ml of oxidant lithium nitrate (80g / L), and stripping Lithium bromide 1ml (220g / L), placed in a platinum crucible, melted in a high-frequency melting furnace at 1100°C for 19 minutes, made into a cobalt glass sheet, and measured TFe, CaO, MgO, SiO in iron ore with an X-ray fluorescence spectrometer 2 、A1 2 o 3 , P, MnO, TiO 2 and other elements, the internal standard element cobalt of iron w...

Claims

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Application Information

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IPC IPC(8): G01N23/223
Inventor 吴飞杨春艳
Owner 吉林建龙钢铁有限责任公司
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