Environment-friendly refining agent, preparation method and refining process

An environmentally friendly, refining agent technology, applied in the direction of air quality improvement, etc., can solve the problems of polluted atmosphere, the impact of the final product aluminum ingot quality, low impurity removal efficiency, etc., to improve the ability to absorb impurities, shorten the refining time, improve The effect of refining efficiency

Inactive Publication Date: 2018-09-07
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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  • Environment-friendly refining agent, preparation method and refining process
  • Environment-friendly refining agent, preparation method and refining process
  • Environment-friendly refining agent, preparation method and refining process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] 1. The content of each component of the environment-friendly refining agent is as follows:

[0041]

[0042] In this embodiment, the catalyst is potassium alginate.

[0043] Two, the preparation method of this environment-friendly type refining agent 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: Microwave treatment is performed on the catalyst, and the temperature of the 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 an environment-friendly refining agent.

[0048] 3. The refining process of using this environment-friendly refining ag...

Embodiment 2

[0057] 1. The content of each component of the environment-friendly refining agent is as follows:

[0058]

[0059] In this embodiment, the catalyst is potassium alginate.

[0060] Two, the preparation method of this environment-friendly type refining agent is:

[0061] S1: Pretreatment, mix potassium chloride, sodium chlorosilicate, sodium chloride, sodium tetrachloroaluminate and sodium sulfate of the above components, stir and heat to 260°C;

[0062] S2: Microwave treatment is performed on the catalyst, and the temperature of the microwave treatment is controlled at 150°C;

[0063] 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;

[0064] S4: Pulverize the mixture obtained in S3 with a pulverizer, and granulate with a granulator to obtain an environment-friendly refining agent.

[0065] 3. The refining process of using this environment-friendly refining agent to refin...

Embodiment 3

[0074] 1. The content of each component of the environment-friendly refining agent is as follows:

[0075]

[0076] In this embodiment, the catalyst is sodium alginate.

[0077] Two, the preparation method of this environment-friendly type refining agent is:

[0078] S1: Pretreatment, mix potassium chloride, sodium chlorosilicate, sodium chloride, sodium tetrachloroaluminate and sodium sulfate of the above components, stir and heat to 270°C;

[0079] S2: Microwave treatment is performed on the catalyst, and the temperature of the microwave treatment is controlled at 180°C;

[0080] 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;

[0081] S4: Pulverize the mixture obtained in S3 with a pulverizer, and granulate with a granulator to obtain an environment-friendly refining agent.

[0082] 3. The refining process of using this environment-friendly refining agent to refine...

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Abstract

The invention relates to the technical field of purification and refining treatment of aluminum and alloys thereof, in particular to an environment-friendly refining agent, a preparation method and arefining process and aims to remove impurities in molten aluminum in the aluminum alloy refining process so as to improve the product quality and avoid atmospheric pollution. The environment-friendlyrefining agent is prepared from components in parts by weight as follows: 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 sodium silicate chloride and 1-3 parts of a catalyst. An accelerant is added to the refining agent, the accelerant can promote decomposition of sodium tetrachloroaluminate in the refining agent, besides, interfacial tension between the refining agent and oxide inclusions is reduced, so that the oxide inclusions can smoothly float on the liquid level to be further removed, and 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 an environment-friendly refining agent, 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 a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/06C22C1/02
CPCC22C1/026C22C1/06Y02A50/20
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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