Production process of silicon tetrachloride

Details Production process of silicon tetrachloride Production process of silicon tetrachloride

1982-09-21

1984-12-25

Cooper, Jack

Chemistry of inorganic compounds

Silicon or compound thereof

Halogen containing

423278, 423292, C01B 3308

Patent

active

044903448

ABSTRACT:
Silicon tetrachloride is effectively and efficiently produced at a relatively low temperature and at a high yield by (1) feeding a mixture of a silicon dioxide containing substance and carbon to the top of a reactor in which a reaction mixture forms a downwardly flowing moving bed, (2) feeding gaseous boron trichloride to an intermediate portion of the reactor, (3) feeding gaseous chlorine to a portion of the reactor located below the boron trichloride feed portion, and (4) feeding an inert gas to a portion of the reactor located below the chlorine feed portion, whereby a silicon tetrachloride formation reaction is carried out in the moving bed and the formed silicon tetrachloride is recovered from a gas mixture discharged from the top of the reactor.

REFERENCES:
patent: 2983583 (1961-05-01), Schechter
patent: 3000705 (1961-09-01), Juckniess

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