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Refining agent for metal smelting, preparation method and refining technology

A refining agent and metal technology, which is applied in the field of refining agent for metal smelting and refining technology, can solve the problems of air pollution, impact on the quality of the final product aluminum ingot, and low efficiency of impurity removal, so as to improve the ability of absorbing impurities and shorten the refining process. Time, the effect of improving refining efficiency

Inactive Publication Date: 2018-10-16
湖北新金洋资源股份公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, during the implementation of the technical solution disclosed above, the impurity removal effect of the refining agent is not particularly ideal, the impurity removal efficiency is low, it takes a long time, and the impurity removal is not thorough, resulting in the quality of the final product aluminum ingot being affected, and The refining agent contains fluorine, which pollutes the atmosphere during the refining process and endangers the health of workers

Method used

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  • Refining agent for metal smelting, preparation method and refining technology
  • Refining agent for metal smelting, preparation method and refining technology
  • Refining agent for metal smelting, preparation method and refining technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] 1. The content of each component of the refining agent for metal smelting is as follows:

[0041]

[0042] In this embodiment, the activator is calcium sulfonate.

[0043] Two, the preparation method of this refining agent for metal smelting is:

[0044] S1: Pretreatment, mix potassium chloride, sodium chlorosilicate, sodium chloride, sodium tetrachloroaluminate and sodium sulfate of the above-mentioned components, stir and heat to 250°C;

[0045] S2: Perform microwave treatment on the activator, and the temperature of microwave treatment is controlled at 170°C;

[0046] S3: After fully stirring and mixing the mixture obtained in S1 and the material obtained in S2, put it into a sintering furnace and sinter at 300-305°C;

[0047] S4: Pulverize the mixture obtained in S3 with a pulverizer, and granulate with a granulator to obtain a refining agent for metal smelting. 3. The refining process of using the refining agent for metal smelting to refine aluminum materials...

Embodiment 2

[0056] 1. The content of each component of the refining agent for metal smelting is as follows:

[0057]

[0058] In this embodiment, the activator is calcium sulfonate.

[0059] Two, the preparation method of this refining agent for metal smelting is:

[0060] S1: Pretreatment, mix potassium chloride, sodium chlorosilicate, sodium chloride, sodium tetrachloroaluminate and sodium sulfate of the above components, stir and heat to 260°C;

[0061] S2: Perform microwave treatment on the activator, and the temperature of microwave treatment is controlled at 150°C;

[0062] S3: After fully stirring and mixing the mixture obtained in S1 and the material obtained in S2, put it into a sintering furnace and sinter at 305-310°C;

[0063] S4: Pulverize the mixture obtained in S3 with a pulverizer, and granulate with a granulator to obtain a refining agent for metal smelting. 3. The refining process of using the refining agent for metal smelting to refine aluminum materials is as follo...

Embodiment 3

[0072] 1. The content of each component of the refining agent for metal smelting is as follows:

[0073]

[0074] In this embodiment, the activator is sodium propanesulfonate.

[0075] Two, the preparation method of this refining agent for metal smelting is:

[0076] S1: Pretreatment, mix potassium chloride, sodium chlorosilicate, sodium chloride, sodium tetrachloroaluminate and sodium sulfate of the above components, stir and heat to 270°C;

[0077] S2: Perform microwave treatment on the activator, and the temperature of microwave treatment is controlled at 180°C;

[0078] S3: After fully stirring and mixing the mixture obtained in S1 and the material obtained in S2, put it into a sintering furnace and sinter at 300-310°C;

[0079] S4: Pulverize the mixture obtained in S3 with a pulverizer, and granulate with a granulator to obtain a refining agent for metal smelting.

[0080] 3. The refining process of using the refining agent for metal smelting to refine aluminum mate...

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Abstract

The invention relates to the technical field of aluminum and aluminum alloy purifying and refining treatment, in particular to a refining agent for metal smelting, a preparation method and a refiningtechnology. The refining agent for metal smelting aims to remove impurities of molten aluminum in the aluminum alloy refining process, so that the product quality is improved, and atmospheric pollution is avoided. The refining agent for metal smelting comprises, by weight, 30-40 parts of potassium chloride, 15-30 parts of sodium chloride, 10-20 parts of sodium tetrachloroaluminate, 8-20 parts of sodium sulfate, 15-30 parts of chloride sodium silicate and 2-5 parts of activating agent. According to the refining agent for metal smelting, the activating agent is added to the refining agent, the activating agent can promote sodium tetrachloroaluminate in the refining agent to decompose and reduce the interfacial tension between the refining agent and oxide inclusion at the same time, so that the oxide inclusion can smoothly float on the surface of the melt and then is removed, and therefore the product quality is improved.

Description

technical field [0001] The invention relates to the technical field of purification and refining treatment of aluminum and its alloys, in particular to a refining agent for metal smelting, a preparation method and a refining process. Background technique [0002] In order to realize the full utilization of aluminum resources, there is an aluminum material production process that recovers aluminum waste products and reprocesses them to realize repeated reuse. However, recycled aluminum scrap is usually mixed with high alkali metal impurities such as sodium, calcium and lithium, non-metallic impurities, organic materials and moisture. These alkali metals, non-metallic slag inclusions and water vapor will have a serious impact on the casting and subsequent processing of aluminum and its alloys, which will eventually lead to damage to the quality of the produced aluminum ingots. Therefore, before pouring the aluminum waste, it is necessary to use a refining agent to purify and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/06C22C21/00
CPCC22C1/06C22C21/00
Inventor 龙在华陈精智周毅周强苏木阳
Owner 湖北新金洋资源股份公司
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