Problem of obtaining forsterite-containing casting from boron tailings and cullet by electric arc method

The article investigates the characteristics of man-made waste in form of boron tailings (China) and cullet to establish the possibility of their joint use as a raw material composition in production stone forsterite-containing casting by electric arc method. It studies of granulometric elemental, chemical and mineralogical composition of raw materials, using dispersion-gravimetric, Ultraviolet-Visible spectroscopic, microscopic, energy dispersion, as well as X-ray phase analyses. The study established true density, specific surface area, granulometric, elemental, chemical and mineralogical (XFA) compositions of raw materials and calculated modulus of acidity of the melt, which amounted to Mk = 2.04. It allows casting from two-component charge (tailings-cullet) represented by percentage ratio of 70:30. In process of electric arc melting of the raw material composition, forsterite-containing stone casting was obtained, which is solidified melt of a given geometric shape made of forsterite (Mg2SiO4) in a glass phase. Thus, the conducted complex of studies testifies to the suitability of man-made waste represented by boron recovery tailings and cullet for obtaining a melt from them by electric arc method, with further production of forsterite-containing stone casting.