FIELD: metallurgy, more particularly manufacture of light alloys, more specifically silumin. SUBSTANCE: primary electrothermal alloy is subjected to centrifugal filtration at temperature decreasing from 810-830 to 720-730 C, and alloy is then filtered in acoustic cavitation field at 670-690 C. EFFECT: reduced amount of aluminium in filter residues and increased yield of final product. 2 cl, 1 tbl
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