Title:
PROCESS FOR REMOVING NONMETALLIC IMPURITIES FROM METALLURGICAL SILICON
Document Type and Number:
WIPO Patent Application WO/2010/012273
Kind Code:
A3
Abstract:
The invention describes a process for removing nonmetallic impurities from metallurgical silicon. A melt is produced from metallurgical silicon and halide-containing silicon. As a result, the impurities are sublimed out and removed from the melt in the form of nonmetal halides. Compared with the known process, in which gaseous halogen is blown through an Si melt, the novel process can be carried out in a particularly simple and efficient manner.
Inventors:
MOHSSENI-ALA SEYED-JAVAD (DE)
Application Number:
PCT/DE2009/001059
Publication Date:
November 18, 2010
Filing Date:
July 29, 2009
Export Citation:
Assignee:
REV RENEWABLE ENERGY VENTURES (CH)
BERLINSOLAR GMBH (DE)
MOHSSENI-ALA SEYED-JAVAD (DE)
BERLINSOLAR GMBH (DE)
MOHSSENI-ALA SEYED-JAVAD (DE)
International Classes:
C01B33/037
Domestic Patent References:
| WO2007127482A2 | 2007-11-08 | |||
| WO2009143825A2 | 2009-12-03 |
Foreign References:
| EP0304714A1 | 1989-03-01 |
Attorney, Agent or Firm:
EPPING HERMANN FISCHER (Ridlerstrasse 55, Munich, DE)
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