Silicon alloy containing aluminum, calcium and copper for the sy

Details Silicon alloy containing aluminum, calcium and copper for the sy Silicon alloy containing aluminum, calcium and copper for the sy

1995-05-15

1996-03-19

Le, Hoa Van

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Silicon containing or process of making

428403, 501 68, 502232, 502250, 556472, B01J 2112

Patent

active

055003990

ABSTRACT:
The invention relates to a silicon alloy intended for the production of alkyl or aryl halogenosilanes using the Rochow reaction, comprising, in percent by weight:
0.05<Al<0.30
0.01<Ca<0.30
0.02<O.sub.2 <0.20
0.10<Fe<0.50
0.01<Ti<0.15
x<Cu<2+x
where x=3.2 (% Ca)+9.4 (% Al) the remainder being silicon. The alloy according to the invention makes it possible to improve the reactivity and the selectivity of the reaction.

REFERENCES:
patent: 4500724 (1985-02-01), Ward, III et al.
patent: 5061672 (1991-10-01), Elattar
patent: 5094832 (1992-03-01), Forwald et al.
patent: 5128116 (1992-07-01), Forwald et al.
patent: 5281739 (1994-01-01), Halm et al.

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