METHOD FOR REFINING CRUDE SILICON MELTS USING A PARTICULATE MEDIATOR

• Main Authors: KONRAD MAUTNER, KARL-HEINZ RIMBCK
• Format: Patent
• Language: English
• Published: 20.07.2024
• Subjects: CHEMISTRY; COMPOUNDS THEREOF; FERROUS OR NON-FERROUS ALLOYS; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS; PRETREATMENT OF RAW MATERIALS; PRODUCTION AND REFINING OF METALS; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The subject matter of the invention is a process for oxidatively refining a crude s i l i con melt in the preparation of industrial-grade silicon , i n which process during the refining stage a fine-partic l e mediat or with a particle s i ze parameter dso of between 1 a nd 200 mis added t hat conta...