The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 03, 2016
Filed:
Jul. 29, 2009
Seyed-javad Mohsseni-ala, Bitterfeld-Wolfen, DE;
Christian Bauch, Bitterfeld-Wolfen, DE;
Rumen Deltschew, Leipzig, DE;
Thoralf Gebel, Dresden, DE;
Gerd Lippold, Leipzig, DE;
Matthias Heuer, Berlin, DE;
Seyed-Javad Mohsseni-Ala, Bitterfeld-Wolfen, DE;
Christian Bauch, Bitterfeld-Wolfen, DE;
Rumen Deltschew, Leipzig, DE;
Thoralf Gebel, Dresden, DE;
Gerd Lippold, Leipzig, DE;
Matthias Heuer, Berlin, DE;
Fritz Kirscht, Berlin, DE;
Kamel Ounadjela, Belamont, CA (US);
SPAWNT PRIVATE S.A.R.L., Luxembourg, LU;
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.