Production of glass from thin quartzite-processing residue

Reference Presenter Authors
11-033 Vinicius Rodrigues Gomes Gomes, V.R.(Universidade Estadual do Norte Fluminense Darcy Ribeiro); Babisk, M.P.(Universidade Estadual do Norte Fluminense Darcy Ribeiro); Vidal, F.W.(Centro de Tecnologia Mineral); Vieira, C.M.(Universidade Estadual do Norte Fluminense Darcy Ribeiro); Sampaio, J.A.(Universidade Estadual do Norte Fluminense Darcy Ribeiro); Ornamental rocks are rocky formations constituted of several minerals, which after processed, basically results in esthetics purposed materials, as well as construction materials. Although it is an important activity from the Brazilian economic scenario, the processing of ornamental rocks is may be harmful for the environment. This harm can come from the consequent process' residues, which are wrongly discarded in the environment. Quartzite main compound is SiO2, which is the most common glass-forming oxide. The main purpose of the article is the fabrication of soda-lime and borosilicate glasses from the thin quartzite-processing residue. After the residue's chemical, physical and mineralogical characterization, typical soda-lime and borosilicate glass compositions were prepared and compared to the glasses bought in the stores. The glasses produced were amorphous, just like the ones bought in the market.
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