METHOD OF PROCESSING OF BERYLLIUM-CONTAINING WASTE Russian patent published in 2015 - IPC C22B7/04 C22C9/00 C22C25/00 C22C1/03 

FIELD: metallurgy.

SUBSTANCE: invention can be used in metallurgy. The method of processing of beryllium-containing production wastes of copper-beryllium ligature includes melting with flux metal, conditioning of the molten metal and the subsequent separation of products of melting with obtaining of a metal phase and secondary slag. The melting process is conducted at the temperature of 1250-1350°C with conditioning of the melted metal within 15-30 min. For melting of the furnace charge the used flux metal is the combined fluoro-alkaline flux metal. The fluor agent is the waste of manufacture of metal beryllium - magnesium fluoride. The alkali agent is soda. The ratio of components of the flux metal from the initial weight of wastes is the following: magnesium fluoride - 15-50%, soda - 5-20%. Upon completion of the melting process first the lighter secondary slag is drained separately from the metal phase which is drained after that. The metal phase is used as a repetition material when smelting copper-beryllium ligature. The obtained secondary slag is recycled by smelting with froth-floated slurry with obtaining of beryllium hydroxide, and then metal beryllium.

EFFECT: invention allows organising waste-free technology and improving the environment state.

2 cl, 3 dwg, 5 tbl, 2 ex