Metal catalyzed production of tetrachlorosilane

The present invention is a process for the production of silanes from the contact of hydrogen chloride with silicon. The silicon may be in the form of silicon metal or a silicon containing material. The described process employs a catalyst which increases the yield of tetrachlorosilane. The catalyst...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: HALM, ROLAND L, ZAPP, REGIE H
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The present invention is a process for the production of silanes from the contact of hydrogen chloride with silicon. The silicon may be in the form of silicon metal or a silicon containing material. The described process employs a catalyst which increases the yield of tetrachlorosilane. The catalyst is selected from a group consisting of tin and tin compounds, nickel and nickel compounds, arsenic and arsenic compounds, palladium and palladium compounds, and mixtures thereof. The process is run at a temperature of about 250 DEG C. to 500 DEG C.