Process and apparatus for comminuting silicon

Details Process and apparatus for comminuting silicon Process and apparatus for comminuting silicon

2006-08-15

2009-02-17

Rosenbaum, Mark (Department: 3725)

Solid material comminution or disintegration

Processes

By utilizing kinetic energy of projected or suspended material

C241S019000, C241S039000

Reexamination Certificate

active

07490785

ABSTRACT:
An apparatus for producing silicon seed particles having a size of from 50 μm to 1000 μm from silicon granules having a size of from 300 μm to 5000 μm, comprising a vertically disposed jet chamber with a low cross sectional area and a jet nozzle at the base of the jet chamber through which a milling gas stream is introduced into the chamber; a larger cross section countercurrent gravity separator adjoining the jet chamber, and an inlet for silicon granules, wherein the jet chamber has a length sufficient to allow the milling gas stream to widen to the cross section of the jet chamber.

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