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发明公开
CN104204311A 用于硅的提纯的方法 无效 - 驳回

用于硅的提纯的方法
摘要：
本发明涉及硅的提纯。本发明提供了一种用于提纯硅的方法。所述方法包括从包含铝的熔融溶剂中重结晶起始材料硅，以提供最终经重结晶的硅晶体。所述方法也包括用水性酸溶液洗涤最终经重结晶的硅晶体，以提供最终经酸洗的硅。所述方法也包括定向凝固所述最终经酸洗的硅，以提供最终经定向凝固的硅晶体。
摘要（英）：

The present invention relates to purification of silicon. The present invention provides a method for purification of silicon. The method includes a step of recrystallizing starting material-silicon from a molten solvent comprising aluminum to provide final recrystallized-silicon crystals. The method also includes a step of washing the final recrystallized-silicon crystals with an aqueous acid solution to provide a final acid-washed-silicon. The method also includes a step of directionally solidifying the final acid-washed-silicon to provide final directionally solidified-silicon crystals.

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