Method for recycling magnesium refining flux waste residues by means of boiling point differences

A technology of flux and waste slag, which is applied to the improvement of process efficiency, silicon oxide, calcium/strontium/barium halides, etc., and can solve the problems of resource waste and recovery costs, unsuitable for industrial production applications, uneconomical and other problems

Inactive Publication Date: 2019-11-15
山西宝盛远华新材料股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] At present, magnesium refining flux waste slag can only recover about 50% of the magnesium particles, and the rest are discarded. The recover...

Method used

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  • Method for recycling magnesium refining flux waste residues by means of boiling point differences
  • Method for recycling magnesium refining flux waste residues by means of boiling point differences
  • Method for recycling magnesium refining flux waste residues by means of boiling point differences

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Embodiment 1

[0049] A method for recovering magnesium refining flux waste slag by using the difference in boiling point, the method specifically includes the following steps:

[0050] (1) Raw material treatment: the magnesium refining flux waste slag supplied by the magnesium smelter factory and the magnesium refining flux waste slag supplied by the external factory are respectively processed to obtain liquid magnesium refining flux waste slag with good fluidity;

[0051] Among them, the treatment of magnesium refining flux waste supplied by external factories includes the following steps: first crush and then pulverize the magnesium refining flux waste supplied by external factories on the spot, separate through powder separator to obtain flux slag powder with particle size below 10mm, and then moisture-proof packaging , Pull it back to our factory and transfer it to the heating pot, heat it to 800℃~850℃ to get liquid magnesium refining flux waste slag with good fluidity;

[0052] The tre...

Embodiment 2

[0056] A method for recovering magnesium refining flux waste slag by using the difference in boiling point, the method specifically includes the following steps:

[0057] (1) Raw material treatment: the magnesium refining flux waste slag supplied by the magnesium smelter factory and the magnesium refining flux waste slag supplied by the external factory are respectively processed to obtain liquid magnesium refining flux waste slag with good fluidity;

[0058] Among them, the treatment of magnesium refining flux waste supplied by external factories includes the following steps: first crush and then pulverize the magnesium refining flux waste supplied by external factories on the spot, separate through powder separator to obtain flux slag powder with particle size below 10mm, and then moisture-proof packaging , Pull it back to our factory and transfer it to the heating pot, heat it to 800℃~850℃ to get liquid magnesium refining flux waste slag with good fluidity;

[0059] The tre...

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Abstract

The invention discloses a method for recycling magnesium refining flux waste residues by means of boiling point differences, and belongs to the technical field of resource recycling of metallurgical solid waste resources. The method comprises the step that magnesium and chloride in the magnesium refining flux waste residues are respectively recycled by means of the boiling point differences through raw material treatment, gasification and condensation separation. According to the method, the boiling point differences of residual magnesium, chloride and oxides in the magnesium refining flux waste residues under vacuum and high-temperature conditions are utilized, the residual magnesium and chloride in the flux waste residues are extracted, and magnesium and chloride are respectively obtained by means of a density difference; and meanwhile, gradual recycling is conducted on the waste residues subjected to magnesium and chloride extraction according to different chemical and physical properties of various components in the waste residues, magnesium oxide, sulfate used for chemical fertilizers, mineralizer used for the cement production and calcining process of a Pidgeon-process magnesium smelting plant and fluorite powder as a production raw material of enamel industry. Therefore, the waste residue extracting and recycling method is more thorough and economical and suitable for popularization and application.

Description

technical field [0001] The invention belongs to the technical field of recovery and utilization of metallurgical solid waste resources, and in particular relates to a method for cyclic recovery and utilization of metal magnesium refining flux slag by utilizing boiling point differences. Background technique [0002] Metal magnesium is the metal material with the smallest density that can be used as a structural material, and has a large specific stiffness and good electromagnetic wave shielding effect. It is widely used in aerospace, weaponry, engineering machinery, transportation, metallurgy, chemical industry, Emerging energy-saving and environmentally friendly materials in the fields of electronic communications, medical devices, etc. are currently the most promising and most promising metal materials in the world. [0003] There is a refining process in the metal magnesium smelting process, that is, the refining of crude magnesium. At present, the refining of crude magn...

Claims

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Application Information

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IPC IPC(8): C22B7/04C22B26/22C22B21/00C22B19/20C22B19/30C05D9/02C01F11/22C01B33/12
CPCC22B7/04C22B7/001C22B26/22C22B19/30C05D9/02C01F11/22C01B33/12C22B21/0069C22B21/0023C22B19/22C22B47/00Y02P10/20
Inventor 朱广东王喜刚郭建文朱登强
Owner 山西宝盛远华新材料股份有限公司
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