A method for filtering the decomposition liquid of continuous casting mold slag

A technology of continuous casting mold slag and filtering method, which is applied in the field of metallurgical analytical chemistry, can solve the problems of low analysis efficiency, long time for filtering and collecting free carbon, unfavorable rapid determination of free carbon, etc., to improve analysis efficiency, accuracy and Analytical efficiency, effect of shortened time

Active Publication Date: 2020-06-30
CHENGDU ADVANCED METAL MATERIALS IND TECH RES INST CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the large volume of liquid after the sample is decomposed by this method, it takes a long time to filter and collect free carbon. The filtration time of a single sample is about 30 minutes, and the analysis efficiency is low, which is not conducive to the rapid analysis of free carbon in continuous casting mold flux. determination

Method used

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  • A method for filtering the decomposition liquid of continuous casting mold slag
  • A method for filtering the decomposition liquid of continuous casting mold slag
  • A method for filtering the decomposition liquid of continuous casting mold slag

Examples

Experimental program
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Effect test

Embodiment 1-1

[0058] This embodiment provides a method for decomposing continuous casting mold flux, which includes:

[0059] Use concentrated hydrochloric acid with a mass fraction of 35% to wet 0.2g of the continuous casting mold flux sample without bubbles, heat it to dryness at 110°C, and mix it with 30mL of water at 90°C to obtain a decomposition solution.

Embodiment 1-2

[0061] This embodiment provides a method for decomposing continuous casting mold flux, which includes:

[0062] Wet 0.2g of continuous casting mold flux sample with 20% concentrated hydrochloric acid without bubbles, heat it to dryness at 120°C, and mix it with 20mL of water at 100°C to obtain a decomposition solution.

Embodiment 1-3

[0064] This embodiment provides a method for decomposing continuous casting mold flux, which includes:

[0065] Wet 0.2g of continuous casting mold flux sample with concentrated hydrochloric acid with a mass fraction of 40% until no air bubbles are generated, heat it to dryness at 100°C, and mix it with 40mL of water at 80°C to obtain a decomposition solution.

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Abstract

The invention relates to a filter method of decomposition liquid of continuous casting mold flux, which relates to the field of metallurgic analysis chemistry. The filter method comprises the following steps: after acid oxide powder is dispersed on a fibrous membrane, performing the suction filtering for decomposition liquid of the continuous casting mold flux. By adopting the method, the loss offree carbon can be avoided, and the yield of the free carbon in the continuous casting mold flux is increased. Meanwhile, the carcinogenicity substances such as acid-washed asbestos can be avoided, and the health state of the working personnel is facilitated.

Description

technical field [0001] The invention relates to the field of metallurgical analytical chemistry, in particular to a method for filtering decomposition liquid of continuous casting mold slag. Background technique [0002] Continuous casting mold slag is a kind of artificial synthetic material used in the process of continuous casting of billets. It has the functions of heat insulation, preventing billet oxidation, absorbing inclusions, and lubricating billet shells. The main components of continuous casting mold flux are CaO, SiO 2 、Al 2 o 3 、Na 2 O (or Li 2 O), CaF 2 And carbon particles, the main function of carbon particles is to adjust the melting speed of mold flux. In metallurgical analytical chemistry, the amount of free carbon in continuous casting mold flux is usually measured to represent the level of carbon particles. Therefore, accurate determination of free carbon in mold flux is of great significance to the quality control of continuous casting slabs. [...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/34
CPCG01N1/34
Inventor 钟华
Owner CHENGDU ADVANCED METAL MATERIALS IND TECH RES INST CO LTD
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