FIELD: chemistry.
SUBSTANCE: device for refining silicon by separating metal impurities on the metal surfaces of the crystalliser is made in the form of the rotation bodies, the crystalliser consists of a circular straight cylinder 1 located along the vertical axis of symmetry and cylindrical tubes 2, 3 coaxial with respect to it, connected by horizontal cross-shaped screeds 4, 7 in the surface and bottom layers of the melt 5.
EFFECT: invention allows to produce high-quality raw materials with a low content of impurities.
2 dwg
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