Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for purifying aluminum-silicon-iron alloy through low-temperature remelting, centrifugal separation and grading

A centrifugal separation and ferroalloy technology, applied in the field of smelting, can solve problems such as inability to carry out efficient and large-scale practical applications, and achieve the effect of great application value

Pending Publication Date: 2022-05-13
内蒙古君成科技有限公司
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is a fatal problem in this process: centrifugal separation is carried out in a high-temperature liquid state, and the high-temperature molten aluminum alloy is extremely corrosive to various metal materials, so it is difficult to find a material at a low cost that can be used at high temperatures. High-strength and resistant to high-temperature molten aluminum corrosion
Therefore, this process cannot be applied efficiently and on a large scale.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for purifying aluminum-silicon-iron alloy through low-temperature remelting, centrifugal separation and grading
  • Method for purifying aluminum-silicon-iron alloy through low-temperature remelting, centrifugal separation and grading

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A method for low-temperature remelting, centrifugal separation, and graded purification of Al-Si-Fe alloys, the process flow chart of which is as follows figure 2 shown, including the following steps:

[0030] Put 100kg of Al-Si-Fe alloy into an intermediate frequency furnace for high-temperature smelting, the temperature of the molten material is 1400-1600°C, the mass fraction of Al in the Al-Si-Fe alloy composition is 53.21%, the mass fraction of Si is 42.50%, and the mass fraction of Fe is 2.45%. Aluminum-silicon-iron alloy melt; put the alloy melt into the supergravity centrifugal device with heating device, then cool down to 900℃ at 2°C / min, keep it at this temperature for 180min, start the centrifuge, the supergravity coefficient is 212g, and separate The time is 10 minutes. Under the action of supergravity, the melt is separated through the porous filter plate. After the melt is cooled and solidified, 16.25kg of industrial silicon is obtained. Such as figure 1...

Embodiment 2

[0033] A method for low-temperature remelting, centrifugal separation, and graded purification of Al-Si-Fe alloys, the process flow chart of which is as follows figure 2 shown, including the following steps:

[0034] Put 100kg of Al-Si-Fe alloy into an intermediate frequency furnace for high-temperature smelting, the temperature of the molten material is 1400-1600°C, the mass fraction of Al in the Al-Si-Fe alloy composition is 53.21%, the mass fraction of Si is 42.50%, and the mass fraction of Fe is 2.45%. Aluminum-silicon-iron alloy melt; put the alloy melt into a supergravity centrifugal device with a heating device, then cool down to 950℃ at 3°C / min, keep warm at this temperature for 60min, start the centrifuge, the supergravity coefficient is 212g, and separate The time is 10 minutes. Under the action of supergravity, the melt is separated through the porous filter plate. After the melt is cooled and solidified, 11.02kg of industrial silicon is obtained. Such as figure ...

Embodiment 3

[0037] A method for low-temperature remelting, centrifugal separation, and graded purification of Al-Si-Fe alloys, the process flow chart of which is as follows figure 2 shown, including the following steps:

[0038] Put 100kg of Al-Si-Fe alloy into an intermediate frequency furnace for high-temperature smelting, the melting temperature is 1400-1600°C, the mass fraction of Al in the composition of Al-Si-Fe alloy is 53.46%, the mass fraction of Si is 39.43%, and the mass fraction of Fe is 5.20%. Aluminum-silicon-iron alloy melt; put the alloy melt into the supergravity centrifugal device with heating device, then cool down to 900℃ at 2°C / min, keep it at this temperature for 180min, start the centrifuge, the supergravity coefficient is 212g, and separate The time is 10 minutes. Under the action of supergravity, the melt is separated through a porous filter plate. After the melt is cooled and solidified, 18.10 kg of industrial silicon is obtained. Such as figure 1 As shown, th...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method for purifying an aluminum-silicon-iron alloy by low-temperature remelting, centrifugal separation and grading, which comprises the following steps of: (1) putting the aluminum-silicon-iron alloy into an intermediate frequency furnace for high-temperature smelting to obtain an aluminum-silicon-iron alloy melt; (2) the alloy melt is loaded into a supergravity centrifugal device with a heating device to be cooled, the cooling speed and time are controlled, then under the action of supergravity, the melt passes through a porous filter plate and then is cooled and solidified, a first-stage aluminum-silicon-iron alloy block is obtained, and slag is industrial silicon; and (3) the primary aluminum-silicon-iron alloy block continues to be heated to low temperature, under the action of supergravity, molten liquid passes through a porous filter plate and then is cooled and solidified to obtain the aluminum-silicon-iron alloy, and molten slag is the aluminum-silicon-iron alloy. The method is easy and convenient to operate, high in production efficiency, free of secondary pollution and easy to control, grading purification of the aluminum-silicon-iron alloy is finally achieved, various high-added-value products meeting market requirements are obtained, and the method is suitable for large-scale production.

Description

technical field [0001] The invention belongs to the technical field of smelting, and in particular relates to a method for the low-temperature remelting centrifugal separation and classification purification of Al-Si-Fe alloy. Background technique [0002] With the advancement of smelting technology and the development of the electric power industry, the aluminum industry has developed rapidly in my country. At this stage, all aluminum alloys are obtained by blending pure aluminum with other metals. The production of pure aluminum requires high-grade bauxite resources. With the gradual shortage of domestic high-grade bauxite resources, the dependence on foreign high-quality bauxite has reached more than 50%, which seriously restricts the development of my country's aluminum industry. Therefore, it is of great social and economic significance to actively develop non-traditional aluminum-containing minerals to produce alumina and develop new aluminum smelting methods to promo...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C22B9/02C22B21/06C22C1/02C22C21/02C01B33/037
CPCC22B9/02C22B9/023C22B21/066C22C21/02C22C1/026C01B33/037
Inventor 魏存弟徐少南程妍佐婧
Owner 内蒙古君成科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com