Method for treating activated silicon powder

Details Method for treating activated silicon powder Method for treating activated silicon powder

1986-03-27

1988-02-09

Lechert, Jr., Stephen J.

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Powder pretreatment

427215, 427216, 427189, 427190, 428402, 428403, 428404, 428446, 419 34, 419 31, 419 64, 419 10, B22F 100

Patent

active

047241225

ABSTRACT:
What is disclosed is an improvement in a method for treating the reaction residue from the preparation of organochlorosilanes or chlorosilanes from the reaction of metallic silicon with a chlorinated hydrocarbon or hydrogen chloride, said method comprising combining the reaction residue with water and granulating the mixture of the reaction residue and water, the improvement comprising (A) coating the resulting granules from the granulating of the mixture of the reaction residue and water with an inert inorganic powder.

REFERENCES:
patent: 2705206 (1955-03-01), Wagner
patent: 3656921 (1972-04-01), Willcox
patent: 4207377 (1980-06-01), Kindrick
patent: 4632849 (1986-12-01), Ogawa et al.

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