Silicon recovery of silica ore (\( {\text{SiO}}_{2} \)) has been studied with two types of carbon materials, charcoal as a biomass and coal as a fossil fuel, at elevated temperatures between 1800 and 2000°C in an electric arc furnace. The effects of porosity and electrical resistance of the carbon materials were investigated. To this end, recovery of silicon and ferrosilicon production were tested separately by charcoal and coal, and the products were investigated both qualitatively and quantitatively. A higher electrical resistance of charcoal was found in comparison with coal, with increased efficiency of the furnace and decreased electric energy consumption (per ton of product). The efficiency of the furnace using charcoal and coal was 92.13% and 77.4%, respectively. In addition, the higher porosity of charcoal facilitates the flow of SiO gas through the carbon material leading to a higher reactivity and reducing the electric energy consumption for each ton of FeSi.

硅矿石的硅回收（\（{\ text {SiO}} _ {2} \））已在电弧炉中于1800至2000°C的高温下用两种类型的碳材料进行了研究：木炭作为生物质和煤作为化石燃料。研究了碳材料的孔隙率和电阻的影响。为此，分别用木炭和煤对硅和硅铁的生产回收率进行了测试，并对产品进行了定性和定量研究。与煤相比，发现木炭的电阻更高，从而提高了炉的效率，并降低了电能消耗（每吨产品）。使用木炭和煤的熔炉效率分别为92.13％和77.4％。此外，