FIELD: metallurgy.
SUBSTANCE: electrolysis is performed in melt containing (wt %): to 65CsCl, 15-50 KCl, 5-50 KF, 10-60 K2SiF6 at temperature 550-750 °C. As anode there is used material containing silicon. Also electrolysis is carried out with variation of cathode density of current from 0.005 to 1.5 A/cm2 and with successive separation of silicon deposit off surface of a cathode-substrate and electrolyte.
EFFECT: high output of finished product at relatively simple hardware implementation of process.
3 cl, 4 ex
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