Complexometry joint measurement method for calcium, barium and magnesium contents in silico-calcium barium magnesium alloy

A complexometric titration, silicon calcium barium technology, applied in the direction of material analysis by observing the influence of chemical indicators, and analysis by chemical reaction of materials, etc., can solve the problem of high labor intensity, high consumption cost, long time consumption, etc. problems, to achieve the effect of saving manpower and costs, reducing analysis costs, and quickly and accurately determining
CN103512879AInactive Publication Date: 2014-01-15INNER MONGOLIA BAOTOU STEEL UNION
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
INNER MONGOLIA BAOTOU STEEL UNION
Publication Date
2014-01-15
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a complexometry joint measurement method for calcium, barium and magnesium contents in a silico-calcium barium magnesium alloy. The method comprises the steps of preparing a sample solution of the alloy and a blank solution as a contrast, preparing a titration solution and a blank titration solution respectively with the sample solution and the blank solution, titrating the titration solution and the blank titration solution respectively with an EDTA (Ethylene Diamine Tetraacetic Acid) standard solution, and calculating the calcium, barium and magnesium contents in the alloy respectively according to the consumption of the EDTA standard solution, wherein the titration solution comprises a calcium blank titration solution, a calcium and barium titration solution and a calcium and magnesium titration solution, and the blank titration solution comprises a calcium blank titration solution, a calcium and barium blank titration solution and a calcium and magnesium blank titration solution. With the adoption of the method, the calcium, barium and magnesium contents can be simultaneously measured in the same solution only by once sample dissolving, and the method is easy and simple to operate.
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Description

technical field

[0001] The invention relates to the technical field of iron and steel alloy analysis, in particular to a method for jointly measuring the contents of calcium, barium and magnesium in a silicon-calcium-barium-magnesium alloy by complexometric titration. Background technique

[0002] Silicon-calcium-barium-magnesium alloy is a new type of high-efficiency composite deoxidizer and desulfurizer, which is mainly used in deoxidation and phosphorus removal in molten steel. It can effectively remove impurities in steel by spheroidizing or refining inclusions in steel, change the properties of inclusions in steel, and reduce the harmful effects of non-metallic inclusions. Purify molten steel and improve the quality of steel. It plays an important role in the smelting of high-quality steel. It has a good application prospect in the metallurgical industry. Therefore, it is very important to determine the content of calcium, barium and magnesium in silicon-calcium-bari...

Claims

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