| 摘要 |
The invention relates to a process for purifying MG-silicon which, in the liquid phase, is dispersed into silicon granules. To this end, a liquid silicon jet is applied to a vibrator (9) excited at an ultrasonic frequency, as a result of which particularly fine spherules of granular material are produced. Said spherules are subsequently surface-etched, in order to remove the superficial impurities. <IMAGE>
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