Preparation of alkylhalosilanes

Details Preparation of alkylhalosilanes Preparation of alkylhalosilanes

1998-06-29

2000-02-15

Shaver, Paul F.

Organic compounds -- part of the class 532-570 series

Organic compounds

Silicon containing

C07F 716

Patent

active

060255137

ABSTRACT:
An alkylhalosilane is prepared by charging a reactor with a contact mass comprising a metallic silicon powder and a copper catalyst, and feeding an alkyl halide into the reactor whereby the silane is formed by direct synthesis. The contact mass contains 1-10,000 ppm of elemental boron. The addition of boron to the contact mass is effective for increasing the throughput of dialkyldihalosilane at desired STY in an inexpensive manner while suppressing formation of unnecessary hydrosilanes and disilanes.

REFERENCES:
patent: 4864044 (1989-09-01), Lewis et al.

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