FIELD: metallurgy.
SUBSTANCE: solid fluorine-carbon-containing waste is treated with water solution of caustic alkali of concentration 25-35 g/dcm3 at temperature 60-90°C. Further, product is separated to deposit and solution with successive supply of solution into production of fluoric salts. Upon leaching deposit is treated with 1.0-1.5% water solution of organic acid at temperature 60-80°C and product is separated to deposit and solution. Solution is directed to production of fluoric salts, while carbonic deposit is directed to production of carbon containing products. Ratio L:S is preferably maintained as 10:1 at treatment of waste with solution of caustic alkali, while oxalic acid can be used as organic acid.
EFFECT: extraction of valuable components from waste.
3 cl, 1 tbl, 2 ex
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