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Method for measuring titanium content in iron-bearing material and blast furnace slag

A determination method and technology for iron-containing raw materials, which are applied in the field of metallurgical industrial production, can solve the problems of unstable absorbance value and inability to use dissolution methods.

Active Publication Date: 2010-05-05
WUHU XINXING DUCTILE IRON PIPES
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  • Abstract
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Problems solved by technology

[0006] However, blast furnace slag cannot be dissolved by 40ml of hot nitric acid (1+3), 10 drops of hydrofluoric acid, 40ml of boric acid saturated solution, etc. The absorbance measured by this method is lower than that measured by the mother liquor preparation method, and the sample is dissolved again. Absorbance value is unstable
Therefore, only the mother liquor preparation method can be used

Method used

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Embodiment Construction

[0034] The specific implementation of the present invention will be described in further detail below through the description of the embodiments, so as to help those skilled in the art have a more complete, accurate and in-depth understanding of the inventive concepts and technical solutions of the present invention.

[0035] The invention is a method for measuring titanium content in iron-containing raw materials and blast furnace slag, comprising

[0036] The method for measuring titanium content in iron-containing raw materials and blast furnace slag provided by the present invention includes preparation of titanium standard working sample solution, drawing of working curve, preparation of mother liquor, and measurement of titanium content.

[0037] Main instrument and reagent that the present invention adopts:

[0038] 723-type spectrophotometer (Shanghai No. 3 Analytical Instrument Factory); TG328A electronic balance, measuring range 0-200g, minimum division value 0.1mg; ...

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Abstract

The invention discloses a method for measuring titanium content in iron-bearing material and blast furnace slag, which comprises the following steps of: preparing a titanium standard working sample solution, drawing a working curve, preparing a mother solution, and then, measuring the titanium content. By adopting the technical scheme, with the improvement of the method prescribed by the standard GB6730.22 through a large number of experiments on the basis of GB6730.22 and the combination of the traditional sample processing method, a method for accurately and quickly analyzing and measuring the titanium content is developed. The experimental verification indicates that: satisfactory effects are obtained, measuring results are accurate and stable, the steps are simplified and the work efficiency of analysis of chemical components is improved.

Description

technical field [0001] The invention belongs to the technical field of metallurgical industrial production, and relates to a material composition determination technology in metallurgical production. More specifically, the invention relates to a method for determining titanium content in iron-containing raw materials and blast furnace slag. Background technique [0002] Pig iron is the main raw material for the production of centrifugal ductile iron pipes, and the titanium content in the pig iron must be strictly controlled, not exceeding 0.08%. In blast furnace smelting, the titanium content in blast furnace slag and the titanium content in pig iron are mainly related to the titanium content in the iron-containing raw materials entering the furnace, the distribution ratio of titanium in slag and iron, and the distribution ratio of titanium in slag and iron It is related to the temperature of the furnace. When the furnace temperature is higher, the distribution ratio of tit...

Claims

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Application Information

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IPC IPC(8): G01N21/31G01N1/28
Inventor 王桂生连献功赵和平丁家保吴秀才
Owner WUHU XINXING DUCTILE IRON PIPES
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