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What are the application industries of sodium fluoroaluminate
info：kmwu7.com | Release time：2026-02-25
Sodium fluoroaluminate is an important inorganic fluoride, with core applications concentrated in the electrolytic aluminum industry (accounting for over 95%), and widely used in fields such as glass, ceramics, enamel, metallurgy, abrasives, and welding. The following are detailed applications in various industries:
1、 Electrolytic aluminum industry (core leading)
Core application: As a key flux for the Hall Elu process of aluminum electrolysis.
Function: Lowering the melting point of alumina from about 2050 ℃ to around 950 ℃, reducing electrolysis energy consumption, improving melt conductivity and current efficiency, is an indispensable raw material for primary aluminum production.
Status: Essential material for global electrolytic aluminum production, with demand highly correlated with primary aluminum production.
2、 Glass industry
Turbidity agent: produces milky white glass and frosted glass, giving the glass an opaque and milky white appearance.
Flux: Reduce the melting temperature of glass raw materials, improve the fluidity and clarification effect of glass liquid.
Decolorization/shading: prevents iron ions from developing color, improves glass transparency, and is also used for glass anti reflective coatings.
3、 Ceramic and Enamel Industry
Ceramic glaze: Reduce the sintering temperature of the glaze, improve the glossiness, flatness, and adhesion of the glaze surface, and enhance the appearance and durability of ceramics.
Enamel industry: used as a flux and whitening agent to enhance the gloss, whiteness, and adhesion of enamel layers to metal substrates.
4、 Metallurgical and Foundry Industry
Ferroalloy/Nonferrous Metal Flux: Used for smelting ferroalloys, boiling steel, and non-ferrous metals, reducing melting points, purifying melts, and improving casting performance.
Casting deoxidizer: removes oxide impurities from molten metal and improves casting quality.
Aluminum alloy processing: used as a flux and refining agent for aluminum alloy melting.
5、 Abrasive and wear-resistant materials industry
Grinding wheel/grinding tool additive: As a wear-resistant filler, it enhances the hardness, cutting force, and service life of grinding wheels, and is used for resin grinding wheels, ceramic grinding wheels, etc.
Rubber/plastic filling: enhances the wear resistance and hardness of materials, used for modifying wear-resistant rubber products and engineering plastics.
6、 Welding and metalworking industry
Welding flux: Used in welding rod and flux formulations to remove metal surface oxide films, improve weld fluidity and quality.
Metal surface treatment: As a fluorinating agent, it is used for the removal and pretreatment of oxide layers on metal surfaces.
7、 Other applications
In the field of pesticides, it was once used for pesticide formulation, but due to stricter environmental policies, its application has significantly declined.
Chemical catalysis: As a catalyst or promoter for reactions such as olefin polymerization.
Laboratory reagents: used as fluorinating agents, fluxing agents, and for high-temperature synthesis and material preparation.
1、 Electrolytic aluminum industry (core leading)
Core application: As a key flux for the Hall Elu process of aluminum electrolysis.
Function: Lowering the melting point of alumina from about 2050 ℃ to around 950 ℃, reducing electrolysis energy consumption, improving melt conductivity and current efficiency, is an indispensable raw material for primary aluminum production.
Status: Essential material for global electrolytic aluminum production, with demand highly correlated with primary aluminum production.
2、 Glass industry
Turbidity agent: produces milky white glass and frosted glass, giving the glass an opaque and milky white appearance.
Flux: Reduce the melting temperature of glass raw materials, improve the fluidity and clarification effect of glass liquid.
Decolorization/shading: prevents iron ions from developing color, improves glass transparency, and is also used for glass anti reflective coatings.
3、 Ceramic and Enamel Industry
Ceramic glaze: Reduce the sintering temperature of the glaze, improve the glossiness, flatness, and adhesion of the glaze surface, and enhance the appearance and durability of ceramics.
Enamel industry: used as a flux and whitening agent to enhance the gloss, whiteness, and adhesion of enamel layers to metal substrates.
4、 Metallurgical and Foundry Industry
Ferroalloy/Nonferrous Metal Flux: Used for smelting ferroalloys, boiling steel, and non-ferrous metals, reducing melting points, purifying melts, and improving casting performance.
Casting deoxidizer: removes oxide impurities from molten metal and improves casting quality.
Aluminum alloy processing: used as a flux and refining agent for aluminum alloy melting.
5、 Abrasive and wear-resistant materials industry
Grinding wheel/grinding tool additive: As a wear-resistant filler, it enhances the hardness, cutting force, and service life of grinding wheels, and is used for resin grinding wheels, ceramic grinding wheels, etc.
Rubber/plastic filling: enhances the wear resistance and hardness of materials, used for modifying wear-resistant rubber products and engineering plastics.
6、 Welding and metalworking industry
Welding flux: Used in welding rod and flux formulations to remove metal surface oxide films, improve weld fluidity and quality.
Metal surface treatment: As a fluorinating agent, it is used for the removal and pretreatment of oxide layers on metal surfaces.
7、 Other applications
In the field of pesticides, it was once used for pesticide formulation, but due to stricter environmental policies, its application has significantly declined.
Chemical catalysis: As a catalyst or promoter for reactions such as olefin polymerization.
Laboratory reagents: used as fluorinating agents, fluxing agents, and for high-temperature synthesis and material preparation.
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What is the function of sodium fluoride
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