Refining metallurgy class silicon, manner and the device in order to produce solar class silicon

摘要

Refining metallurgy class silicon, manner and the device which produce the solar class silicon in order to use for the photoelectric cell. The pot inside the vacuum furnace receives the blend of metallurgy class silicon and the reducing agent like two silicify calcium. Melting this blend, in the origin of partial pressure of argon in the non oxidation state inside the reactor. Lowering the partial pressure of argon after the melting, it makes boiling cause, this process ends with directional solidification. The impurity like phosphorus, it decreases this process, to the level adaptation to solar class silicon, decreases also the other impurity considerably. Choice figure Drawing 1