Fusion metallurgy sample analysis fusing agent and its preparation and use method

A sample analysis and flux technology, applied in the preparation of test samples, etc., can solve the problems of poor melting decomposition effect, no metallurgical analysis samples, large consumption of drugs, etc., and achieve excellent melting decomposition effect and melting time. The effect of short, simple preparation method

Inactive Publication Date: 2009-02-18
PANGANG GROUP RESEARCH INSTITUTE CO LTD +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The fluxes used for sample decomposition are often alkali metal salts, such as lithium metaborate, lithium tetraborate, sodium peroxide, sodium pyrosulfate, etc. The fluxes commonly used in these melting methods are subject to decomposition temperature, melting vessels, Due to the limitation of cost and melting time, the effect of melting and decomposition is not very good
In order to increase the melting effect and decomposition ability, in the existing national standards for metallurgical analysis samples, acid dissolution and slag return and sodium peroxide fusion are the most common sample decomposition methods, but their biggest disadvantages are long process, cumbersome operation, and high consumption
At present, there is no report on the application of it to melt decomposition of vanadium-titanium magnetite, vanadium-titanium blast furnace slag, high titanium slag, metallurgical auxiliary materials, non-ferrous metal ore, refractory materials and other metallurgical analysis samples.

Method used

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  • Fusion metallurgy sample analysis fusing agent and its preparation and use method
  • Fusion metallurgy sample analysis fusing agent and its preparation and use method
  • Fusion metallurgy sample analysis fusing agent and its preparation and use method

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preparation example Construction

[0028] Preparation method of the present invention comprises the steps:

[0029] A. Mix evenly: Mix anhydrous sodium carbonate and boric acid evenly according to the weight ratio of 2:1.

[0030] B. Drying procedure: Put the uniformly mixed main flux in an oven, dry at 105°C for 2h-3h, then take it out and cool it to room temperature.

[0031] C, milling procedure: grind the dried main flux into powder with a mortar or other milling equipment, and bottle it for subsequent use;

[0032] D, auxiliary flux: white crystalline powder auxiliary flux ammonium nitrate or potassium nitrate are bottled for subsequent use. Add appropriate amount of auxiliary flux according to the difficulty of sample decomposition during use.

[0033] The present invention adopts following steps when concrete use:

[0034] a. Put the Φ12.5cm or Φ15cm slow or medium-speed quantitative filter paper according to the attached figure 1 The folding procedure shown, folded along the dotted line, finally fol...

Embodiment 1

[0045] Embodiment 1: the mensuration of total iron in iron ore.

[0046] Take 66.67% of anhydrous sodium carbonate and 33.3% of boric acid. Pour the above ratio of anhydrous sodium carbonate and boric acid into a porcelain plate, mix evenly, put it in an oven, and dry it at 105°C until it does not agglomerate, then keep it warm for 2 hours; take out the dried main flux and cool it until At room temperature, grind it into powder with a mortar or other grinding equipment, and bottle it for later use.

[0047] Take Φ12.5cm quantitative filter paper, according to the attached figure 1 Fold in the order of folding, put into the mixed flux of 4g-5g according to the ratio above into the folded packaging filter paper, put the 0.2000g vanadium-titanium magnetite powder sample taken out into the flux and stir evenly, Then packed into metallurgical balls;

[0048] Fill a 50mL porcelain crucible with graphite powder, place it in a high-temperature muffle furnace, burn it at 800°C-900°C...

Embodiment 2

[0053] Embodiment 2: the mensuration of calcium and magnesium in high titanium slag.

[0054] Anhydrous sodium carbonate 66.0%, boric acid 33.0%, ammonium nitrate 1.0%. Pour the proportion of anhydrous sodium carbonate and boric acid into a porcelain plate, mix evenly, put it in an oven, and dry it at 105°C until it does not agglomerate, and then keep it warm for 3 hours; take out the dried main flux and cool it until At room temperature, use a mortar or other grinding equipment to grind into powder, bottle for later use;

[0055] Take Φ15cm quantitative filter paper, according to the attached figure 1 Fold in order, put 4.95g of main flux in the above ratio into the folded packaging filter paper, and weigh out 0.2000g~0.5000g of metallurgical auxiliary materials (including high titanium slag, composite slagging agent, desulfurizer , semi-steel, deoxidizer, etc.) powder sample into the main flux, add 0.05g of ammonium nitrate, stir evenly, and then pack into metallurgical sa...

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Abstract

The invention discloses an analysis fluxing agent for melting metallurgical samples, and a preparation and using method thereof; the analysis fluxing agent is prepared with a main fluxing agent and an auxiliary fluxing agent, wherein, the contents of anhydrous sodium carbonate and boric acid reach 85.80% to 100%; the content of the auxiliary flux agent nitrate ammonium or potassium nitrate is 0 to 14.20%; the invention can be used to melt and decompose vanadium-titanium magnetite, vanadium-titanium-bearing slag, high-titanium slag, metallurgical auxiliary material, refractory material, vanadium slag, non-ferrous metal ores and other metallurgical samples; the flux agent of the invention has the advantages of less material adoption, simple preparation method, low cost, simple operation, short melting time, as well as good melting and decomposition effect; the melted samples are of easy acid leaching and decomposition, wide application and convenient using.

Description

technical field [0001] The invention relates to a metallurgical sample analysis technology, in particular to a flux for analyzing molten and decomposed metallurgical samples, a preparation method and a use method thereof. Background technique [0002] Existing sample analysis techniques, except for dry methods such as emission spectroscopic analysis, usually first decompose the sample to make a solution before performing the measurement. Sample decomposition is the first analytical step after sample comminution. The purpose of sample decomposition is to convert solid samples into analytical solutions suitable for element determination by modern instrumental or chemical analysis methods. Therefore, the decomposition of the sample is a basic and necessary step in the chemical analysis method, and it is usually the limiting factor for the speed of sample analysis and the accuracy of the measurement results. Therefore, the decomposition of the sample is one of the important st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/28
Inventor 郑小敏杨平刘红英
Owner PANGANG GROUP RESEARCH INSTITUTE CO LTD
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