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    • 8. 发明申请
    • LINING FOR SURFACES OF A REFRACTORY CRUCIBLE FOR PURIFICATION OF SILICON MELT AND METHOD OF PURIFICATION OF THE SILICON MELT USING THAT CRUCIBLE
    • 用于清洁硅胶的耐火材料表面的内衬和使用可疑的硅胶的纯化方法
    • WO2014004373A1
    • 2014-01-03
    • PCT/US2013/047312
    • 2013-06-24
    • SILICOR MATERIALS INC.
    • TURENNE, AlainALFRED, Christian
    • C30B11/00C30B9/06C30B35/00C01B33/037
    • C01B33/037B01J6/007C30B11/002C30B29/06C30B35/002
    • A crucible for containing molten silicon comprises at least one refractory material having at least one inner surface defining an interior for receiving a molten silicon mixture, and a lining deposited onto the inner surface, the lining comprising colloidal alumina. A method for silicon purification comprises contacting a first silicon with a solvent metal comprising aluminum, sufficient to provide a first mixture, melting the first mixture in an interior of a melting crucible to provide a molten silicon mixture, the melting crucible comprising at least one refractory material having an inner surface defining the interior of the melting crucible, coating at least a portion of the inner surface of the melting crucible with a lining comprising colloidal alumina prior to melting first mixture, cooling the molten silicon mixture, sufficient to form recrystallized silicon crystals and a mother liquor, and separating the final recrystalized silicon crystals and the mother liquor.
    • 用于容纳熔融硅的坩埚包括至少一种具有至少一个内表面的耐火材料,所述至少一个内表面限定用于接收熔融硅混合物的内部,以及沉积在所述内表面上的衬里,所述衬里包含胶体氧化铝。 一种用于硅纯化的方法包括使第一硅与包含铝的溶剂金属接触,所述溶剂金属足以提供第一混合物,在熔融坩埚的内部熔化第一混合物以提供熔融硅混合物,所述熔化坩埚包含至少一种耐火材料 具有限定熔融坩埚内部的内表面的材料,在熔融坩埚熔融之前,用熔融坩埚的内表面的至少一部分涂覆包含胶体氧化铝的材料,冷却熔融硅混合物,足以形成重结晶的硅晶体 和母液,并分离最终的重结晶的硅晶体和母液。