Preparation of silane from amine alanes

Details Preparation of silane from amine alanes Preparation of silane from amine alanes

1983-07-21

1984-10-02

Doll, John

Chemistry of inorganic compounds

Silicon or compound thereof

Binary compound

423489, C01B 3304

Patent

active

044747438

ABSTRACT:
A process for the coproduction of silane and AlF.sub.3 is described. SiF.sub.4 and amine alane (AlH.sub.3.NR.sub.3) complexes are reacted to produce gaseous silane and AlF.sub.3 coproduct. The amine tends to complex somewhat with coproduct AlF.sub.3 but is released therefrom by heating. AlF.sub.3 is a very saleable commodity thereby making the invention an improvement over other hydride reactions which produce less usable coproducts.

REFERENCES:
patent: 2680059 (1954-06-01), Bragdon
patent: 3159626 (1964-12-01), Ashby
patent: 3642853 (1972-02-01), Murib et al.
patent: 3926833 (1975-12-01), Hoffman et al.
patent: 4006095 (1977-02-01), Hoffman et al.
patent: 4374111 (1983-02-01), Lefrancois
J.A.C.S., vol. 82, pp. 2141-2144, May 5, 1960-"The Amine Complexes of Aluminum Hydride, I.", by Ruff et al.

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