New method of extracting silicon from mixture produced when silicon tetrafluoride is reduced by sodium takes advantage of lower melting point of NaF. Method is effective at temperatures up to 400 degrees C below melting point of Si. Results in energy and economic savings: simpler and smaller furnaces, less volatization loss, and high percentage of separation.
Separating Silicon From Si/NaF Mixtures
NASA Tech Briefs ; 7 , 1
01.03.1982
Sonstige
Keine Angabe
Englisch
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