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:
Jun. 05, 2018
Filed:
Apr. 15, 2014
Applicant:
Wacker Chemie Ag, Munich, DE;
Inventors:
Dirk Weckesser, Mehring, DE;
Harald Hertlein, Burghausen, DE;
Assignee:
WACKER CHEMIE AG, Munich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B 33/03 (2006.01); B01J 8/18 (2006.01); C01B 33/027 (2006.01);
U.S. Cl.
CPC ...
C01B 33/03 (2013.01); B01J 8/1809 (2013.01); B01J 8/1827 (2013.01); B01J 8/1872 (2013.01); C01B 33/027 (2013.01); B01J 2208/00017 (2013.01); B01J 2208/00548 (2013.01); B01J 2208/00628 (2013.01); B01J 2208/00663 (2013.01); B01J 2208/00725 (2013.01); B01J 2208/00752 (2013.01); B01J 2208/00761 (2013.01); B01J 2208/00902 (2013.01); B01J 2208/065 (2013.01);
Abstract
Granular polysilicon is produced in a fluidized-bed reactor by fluidizing silicon particles by means of a gas flow in a fluidized bed heated to a temperature of 850-1100° C., adding a silicon-containing reaction gas by means of a nozzle and depositing of silicon on the silicon particles, wherein, in at least 56% of an axially symmetric region around a nozzle opening of the nozzle,