The knowledge related to available high-quality sand deposits, Si manufacturing process and different challenging issues in manufacturing is essential for developing the silicon industry in Bangladesh, which is addressed in this article. For high-tech applications, the primary element silica needs to be 98% pure, at least. A case study in Bangladesh shows that Bipinganj sand, with the high quartz percentages, low moisture content, is suitable for the industrial-grade silicon production. No trace of Boron content has been found in the sand of Shameshwari river near Bipinganj locality. Some other potential sand deposits in Bangladesh which contain a high amount of silica are Balijuri of Sherpur district, Moulvibazar, Dakshin zangal of Hathhazari Upazila in Chittagong district, Chauddagram of Comilla district and Shajibazar of Habiganj district etc. Metallurgical grade silicon (MG-Si) is the precursor for the solar grade (SoG) and electronic-grade silicon. In photovoltaic and electronic applications, an electric arc furnace is used for the growth of MGS. Some parameters, such as furnace temperature and heat loss, need to be considered for good quality material production. MG-Si can be produced through both carbon reduction and magnesium reduction processes. Mg reduction is comparatively expensive. Silicon production from waste glasses can be a potential technology for MG-Si production in respective to Bangladesh.
Nucleation of SiO$$_{2}$$-CaO-Al$$_{2}$$O$$_{3}$$ Slag in Oxidative Ladle Refining of Metallurgical Grade Silicon