A molten salt electrolyte for preparing aluminum-scandium master alloys and its application in the preparation of aluminum-scandium master alloys.
By using a molten salt electrolyte with a specific ratio of sodium fluoride, potassium fluoride, lithium fluoride, and interfacial active salt, the problems of low scandium yield and scandium compound accumulation in the preparation of aluminum-scandium master alloys have been solved, achieving efficient and low-cost production of aluminum-scandium master alloys.
Patent Information
- Application Number
- CN202610492346.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-04-15
- Publication Date
- 2026-06-26
AI Technical Summary
In existing methods for preparing aluminum-scandium master alloys, the scandium yield is low and scandium-containing compounds tend to accumulate in the electrolyte, resulting in high production costs and low efficiency.
A molten salt electrolyte containing sodium fluoride, potassium fluoride, lithium fluoride, and interfacial active salts (such as magnesium fluoride or calcium fluoride) is used. By combining these components in specific proportions, the primary crystallization temperature, viscosity, and conductivity are reduced, aluminum melt loss and anodic effect are decreased, and efficient alloying of scandium is achieved.
This improved the scandium content and scandium yield of the aluminum-scandium master alloy, reduced production costs, extended the service life of the electrolytic cell and anode, and met the preparation requirements of the molten salt electrolysis method.
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