Process for manufacturing active silicon powder for the preparat

Details Process for manufacturing active silicon powder for the preparat Process for manufacturing active silicon powder for the preparat

1999-09-08

2000-05-02

Shaver, Paul F.

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

Organic compounds

Silicon containing

25218232, 25218233, 25218235, C07F 708, C07F 716

Patent

active

060574690

ABSTRACT:
A process for the preparation of active silicon powder for use in the Rochow reaction consisting of grinding metallurgical silicon to a particle size less than 350 .mu.m in the presence of at least one catalyst and/or reaction promoter, in order to deposit this (these) element(s) on the grain surface, and an active silicon powder with a particle size of less than 350 .mu.m, with 0.01 to 0.1 g/m.sup.2 of copper, and/or 0.003 to 0.03 g/m.sup.2 of tin, and/or 0.003 to 0.03 g/m.sup.2 of phosphorus on the surface of the grains, for use in the Rochow reaction. The reactivity and selectivity of the powder are improved, and it has a shorter reaction incubation time.

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Database, DE 1668831, translation of abstract, Aug. 1, 1991.
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Database, FR 1 519 715 A, translation of abstract, Aug. 1, 1991.

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