MIXTURE FOR MELTING SILICON VIA ORE-THERMAL REDUCTION Russian patent published in 2011 - IPC C01B33/25 

FIELD: chemistry.

SUBSTANCE: mixture contains agglomerates of a packed mixture containing finely dispersed silica and carbon-containing components, alkaline binder, powdered silicon, finely dispersed carbon-containing component with particle size 0.1-0.5 mm, finely dispersed silica-containing components in form of a finely dispersed silica-containing component with particle size 0.1-0.5 mm and microsilica with the following components: finely dispersed carbon-containing component with particle size 0.1-0.5 mm 30-35 wt %; finely dispersed silica-containing component with particle size 0.1-0.5 mm 45-55; microsilica 7.5-12 wt %; powdered silicon 0.5-2 wt %; alkaline binder 5-8 wt %.

EFFECT: high porosity and electrical resistance of the agglomerates.

5 cl, 1 tbl