C - Chemistry – Metallurgy – 30 – B
Patent
C - Chemistry, Metallurgy
30
B
C30B 29/06 (2006.01) C01B 33/02 (2006.01) C01B 33/037 (2006.01)
Patent
CA 2657007
The invention relates to a method for producing high-purity classified polysilicon fragments, wherein polysilicon from the Siemens process is pulverized and classified by means of a device comprising pulverizing tools and a screening device, and the resulting polysilicon fragments are purified by a purification bath, characterized in that the pulverizing tools and screening device generally have a surface that comes into contact with the polysilicon that is made of a material that contaminates the polysilicon fragments only with foreign particles that are subsequently removed selectively by the purification bath.
L'invention concerne un procédé pour la préparation d'un fragment de polysilicium calibré, très pur, un polysilicium provenant du procédé Siemens étant broyé et calibré à l'aide d'un dispositif comprenant unoutillage de broyage et un dispositif de tamisage, le fragment de polysilicium ainsi obtenu étant purifié à l'aide d'un bain de purification. Le procédé est caractérisé en ce que l'outillage de broyage et le dispositif de tamisage possèdent tous une surface entrant en contact avec le polysilicium et constituée d'un matériau qui n'encrasse le fragment de polysilicium qu'avec des particules étrangères qui sont ensuite éliminées de manière ciblée par le bain de purification.
Pech Reiner
Schaefer Marcus
Wochner Hanns
Mcfadden Fincham
Wacker Chemie Ag
LandOfFree
Method and device for producing classified high-purity... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and device for producing classified high-purity..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and device for producing classified high-purity... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1838453