METHOD FOR PRODUCING PURIFIED CHLOROSILANES

METHOD FOR PRODUCING PURIFIED CHLOROSILANES

Provided is a method for manufacturing refined chlorosilane, the method being characterized in that crude chlorosilane, such as crude trichlorosilane and crude silicon tetrachloride and containing a boron compound and/or a phosphorous compound, is brought into contact with chlorine (preferably 1-300...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: SAKAI, Junya, IIYAMA, Shoji
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CHEMISTRY
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
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Beschreibung
Zusammenfassung:Provided is a method for manufacturing refined chlorosilane, the method being characterized in that crude chlorosilane, such as crude trichlorosilane and crude silicon tetrachloride and containing a boron compound and/or a phosphorous compound, is brought into contact with chlorine (preferably 1-3000ppm mole with respect to 1 mole of crude chlorosilane) in the presence of alkylphenol such as 2-methylphenol, and then distilled.