Method of producing an intermediate in the production of silicon

Details Method of producing an intermediate in the production of silicon Method of producing an intermediate in the production of silicon

1981-06-19

1982-12-21

Silverberg, Sam

Coating processes

Particles, flakes, or granules coated or encapsulated

Solid encapsulation process utilizing an emulsion or...

423345, C10B 5510, C10B 4500

Patent

active

043649742

ABSTRACT:
A method of preparing an intermediate composition for the production of silicon or silicon carbide, wherein silicon dioxide particles (quartz sand) are coated with carbonaceous material in a fluidized bed from which the coated particles are extracted as they fall to the bottom of the fluidized bed by virtue of an increase in mass by the coating process. The carbon in the coating should be stoichiometrically equivalent to that required for the ultimate reaction of the silicon dioxide to form either elemental silicon or silicon carbide.

REFERENCES:
patent: 2768095 (1956-10-01), Tadema
patent: 3811916 (1974-05-01), Russel

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