基本信息:
- 专利标题： METHODS AND SYSTEMS FOR PURIFYING ELEMENTS
- 申请号：PCT/US2003/030659 申请日：2003-09-26
- 公开(公告)号：WO2004030044A3 公开(公告)日：2004-04-08
- 发明人： HALL, Robert, B. , KENDALL, Scott, L. , RAND, James, A. , SIMS, Paul, E.
- 申请人： ASTROPOWER, INC. , HALL, Robert, B. , KENDALL, Scott, L. , RAND, James, A. , SIMS, Paul, E.
- 申请人地址： 100 Pencader Drive, Newark, DE 19702-3316 US
- 专利权人： ASTROPOWER, INC.,HALL, Robert, B.,KENDALL, Scott, L.,RAND, James, A.,SIMS, Paul, E.
- 当前专利权人： ASTROPOWER, INC.,HALL, Robert, B.,KENDALL, Scott, L.,RAND, James, A.,SIMS, Paul, E.
- 当前专利权人地址： 100 Pencader Drive, Newark, DE 19702-3316 US
- 代理机构： BROWN, Kevin, C.
- 优先权： US60/414,052 20020927
- 主分类号： C01B33/02
- IPC分类号： C01B33/02
摘要：
There are provided methods of purifying a material, comprising melting solid material to form liquefied material, directionally solidifying a portion of the liquefied material; and removing a liquid remainder from the purified solidified material. Preferably, the purified solidified material is melted to form re-liquefied purified material, and re-liquefied purified material is removed. Preferably, the material is positioned in a container as it is being purified. The method is particularly useful for purifying elemental material, e.g., semiconductor material such as silicon and/or germanium, such as recycle scrap silicon and/or metallurgical grade silicon. There are also provided systems for carrying out such methods.