Method for refining of silicon
    5.
    发明授权
    Method for refining of silicon 失效
    硅精制方法

    公开(公告)号:US5788945A

    公开(公告)日:1998-08-04

    申请号:US852999

    申请日:1997-05-08

    申请人: Anders Schei

    发明人: Anders Schei

    CPC分类号: C01B33/037

    摘要: The present invention relates to a process for removing impurities from molten silicon by treatment of molten silicon contained in a vessel with a slag having the capability of removing the impurities, particularly boron from molten silicon wherein slag is continuously or substantially continuously added to the molten silicon and that the slag is continuously or substantially continuously inactivated or removed from the silicon melt as soon as equilibrium between the slag and molten silicon is reached with respect to the impurity elements or element to be removed.

    摘要翻译: 本发明涉及通过处理包含在容器中的熔融硅来除去熔融硅中的杂质的方法,该炉渣具有除去杂质的能力,特别是熔融硅中的硼,其中炉渣连续地或基本上连续地加到熔融硅中 并且一旦熔渣和熔融硅之间的平衡相对于待除去的杂质元素或元素达到,则熔渣就连续地或基本上连续地从硅熔体中去除或去除。