REACTOR SYSTEM AND METHOD OF POLYCRYSTALLINE SILICON PRODUCTION THEREWITH
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United States of America Patent
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Issued Date -
Jul 19, 2012
app pub date -
Jan 13, 2012
filing date -
Jan 19, 2011
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Abstract
Embodiments of a method for reducing or mitigating metal contamination of polycrystalline silicon are disclosed. In particular the disclosure relates to a method of mitigating metal contamination of granulate polycrystalline silicon, during its manufacture in a fluidized bed reactor unit, resulting from contact with a metal surface of components of the supporting transportation and auxiliary infrastructure by use of a protective coating comprising silicon or a silicon-containing material.
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