Invention Grant
- Patent Title: Method and device for producing granulated polycrystalline silicon in a fluidized bed reactor
- Patent Title (中): 在流化床反应器中生产粒状多晶硅的方法和装置
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Application No.: US12065790Application Date: 2006-09-04
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Publication No.: US07922990B2Publication Date: 2011-04-12
- Inventor: Harald Hertlein , Rainer Hauswirth
- Applicant: Harald Hertlein , Rainer Hauswirth
- Applicant Address: DE Munich
- Assignee: Wacker Chemie AG
- Current Assignee: Wacker Chemie AG
- Current Assignee Address: DE Munich
- Agency: Brooks Kushman P.C.
- Priority: DE102005042753 20050908
- International Application: PCT/EP2006/065943 WO 20060904
- International Announcement: WO2007/028776 WO 20070315
- Main IPC: C01B33/02
- IPC: C01B33/02
Abstract:
A fluidized bed process for the production of polycrystalline silicon granules supplies, in addition to reaction gas, a gas containing 99.5 to 95 mol. percent hydrogen and 0.5 to 5 mol. percent gaseous silicon compounds, and the reactor wall is maintained at the same or a higher temperature than the reaction zone, such that the deposition of silicon on reactor internals is minimized.
Public/Granted literature
- US20080241046A1 Method and Device for Producing Granulated Polycrystalline Silicon in a Fluidized Bed Reactor Public/Granted day:2008-10-02
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