Method for preparing contact mass for organohalosilane synthesis

Details Method for preparing contact mass for organohalosilane synthesis Method for preparing contact mass for organohalosilane synthesis

1999-10-05

2000-12-05

Beck, Shrive

Coating processes

Particles, flakes, or granules coated or encapsulated

Inorganic base

427 11, 427212, 427215, 427216, 427242, B05D 700

Patent

active

061563803

ABSTRACT:
A contact mass for use in the synthesis of organohalosilanes is prepared by adding metallic copper particles to metallic silicon particles, and rubbing the particles against each other under high shear forces in a non-oxidizing atmosphere, thereby forming a metallic copper thin film on the surface of the metallic silicon particles in a spot pattern or entirely. The contact mass is capable of reducing the time required for activation and has an extended lifetime.

REFERENCES:
patent: 4314908 (1982-02-01), Downing et al.
patent: 4390510 (1983-06-01), Ritzer et al.
patent: 5372845 (1994-12-01), Rangaswamy et al.
English Abstract for 3-44393.
English Abstract for 9-235114.

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