METHOD OF LIGATURE RECEIVING ALUMINIUM-SCANDIUM, FLUX FOR LIGATURE RECEIVING AND DEVICE FOR METHOD IMPLEMENTATION Russian patent published in 2009 - IPC C22C1/00 C22C21/00 C22C35/00 

FIELD: metallurgy.

SUBSTANCE: method includes high-temperature exchange reaction of fluoride or oxide of scandium with aluminium in medium of molten metal halogenides. Aluminium is melted in drops form, received by means of its filtration, they are passed through molten metal halogenides by means of exhaustion creation, received melt is isolated then it is discharged metal halogenides melt and formed aluminium-scandium melt. It is used flux, containing aluminium fluorides, fluoride or oxide of scandium, fluoride and chloride of calcium and if necessary hydro-fluoride or potassium fluoride at following components correlation, wt %: calcium fluoride 10-35, aluminium fluoride 2-10, scandium fluoride 2-20, or scandium oxide 2-8, hydro- fluoride or potassium fluoride 0-5, calcium chloride is the rest. Device contains lined melting pot, heater and additional second melting pot, located over the first and allowing perforated bottom, if necessary coated by one or two layers of graphitised fabric, herewith both melting pots are located in waterproof tank, allowing in bottom part hole, connected to backing vacuum pump, and located into resistance furnace.

EFFECT: high purity of end product by admixture of sodium along with high extraction scandium into it.

3 cl, 10 ex, 6 tbl