Method for producing highly-pure granular silicon

US6849244B2 · kind B2 · utility

Assignee

• SOLARWORLD AG · DE

Inventors

• Theo Konig · Laufenburg (Baden), DE
• Matthias Pfaffelhuber · Baytown, US
• Heiko Herold · Dormagen, DE
• Günter Holdenried · Leichlingen, DE
• Leslaw Mleczko · Bochum, DE

Key dates

• Filing date: Nov 3, 2001
• Grant date: Feb 1, 2005
• Expiry date: Nov 3, 2021

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J2219/029
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The invention relates to a method for producing hyper-pure, granular silicon by decomposing a gas containing silicon in a reactor consisting of a silicon carbide-based, carbon-fiber reinforced material; to a corresponding reactor; and to the use of said reactor for producing silicon.