Silicon refining process

Details Silicon refining process Silicon refining process

C - Chemistry, Metallurgy

01

B

C01B 33/037 (2006.01) G05B 13/02 (2006.01) G05B 15/00 (2006.01)

Patent

CA 2261891

This invention relates to a method for refining molten silicon and, more particularly, to an expert system for refining molten, metallurgical-grade silicon by oxidation to produce refined metallurgical-grade silicon, wherein the expert system utilizes the steps of monitoring the temperature via temperature probe (44) of the silicon (24) in the ladle (26) and calculating the amount of silica (42) and oxygen (34) for refining.

L'invention concerne un procédé pour affiner du silicium fondu. L'invention traite plus particulièrement d'un système expert pour affiner par oxydation du silicium fondu, de qualité métallurgique afin de produire un silicium affiné de qualité métallurgique. Le système expert selon l'invention comprend les étapes consistant à contrôler à l'aide d'une sonde de température (44) la température du silicium (24) dans la poche de coulée (26) et à calculer la quantité de silice (42) et d'oxygène (34) nécessaires pour l'affinage.

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