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:
Feb. 21, 2006
Filed:
Nov. 21, 2001
Karl-ludwig Metzger, Bergisch Gladbach, DE;
Leslaw Mleczko, Bochum, DE;
Sigurd Buchholz, Köln, DE;
Philipp Schlichthärle, Odenthal, DE;
Karl-Ludwig Metzger, Bergisch Gladbach, DE;
Leslaw Mleczko, Bochum, DE;
Sigurd Buchholz, Köln, DE;
Philipp Schlichthärle, Odenthal, DE;
Solarworld Aktiengesellschaft, Bonn, DE;
Abstract
The invention relates to a method for producing granular silicon by thermal decomposition of a gas containing silicon in a fluidized bed, said decomposition occurring in the presence of free-flowing mobile elements. Preferably, said free-flowing mobile elements become devoid of silicon in a separate procedural step, said silicon being deposited during decomposition of gas containing silicon, by reacting with hydrogen halides, halogens, alkyl halogenides, aryl halogenides or combinations of halogen and/or hydrogen halide and/or oxidized mineral acids and/or by thermal treatment of said elements.