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handle: 10261/35235
[ES] En la industria del silicio metálico se genera como residuo microsilice, de granulome tría muy fina, con alto contenido en sílice (>92 %). En el presente trabajo se estudia la posibilidad de sustituir, completa o parcialmente, las arenas comerciales por microsilice para la fabricación de vidrio soluble por fusión. Este estudio se lleva a cabo mediante el análisis termogravimétrico y térmico diferencial de las materias primas y mezclas de estas. El balance energético del sistema indica que al utilizar la microsilice requiere el aporte de menor energía extema. La presencia de impurezas en la microsilice puede dar lugar a la formación de compuestos insolubles en el vidrio de silicato. Se concluye que la microsilice puede ser utilizada parcialmente en la elaboración de silicato sódico.
[EN] In the industry of the silicon it is generated as residual silica, of very fine size, with high content in SÍO2 (>92 %). In this work, the possibility of substituting, complete or partially, the residual silica for commercial sands is studied. At the moment, sands are used in the elaboration of soluble glasses by melting. This study is carried out by thermogravimetric and differential thermal analysis of the raw materials and mixtures of them. The energy balance of the system indicates that it is required lower energy when using the residual silica. The presence of impurities in the residual silica can give place to the formation of compound insoluble in the water glass. It is concluded that the residual silica can be used partially in the making of sodium silicate glass.
Peer reviewed
Silicato sódico, Water glass, Sodium silicate, Silica, Valorization, Vidrio soluble, Valorización, Microsílice
Silicato sódico, Water glass, Sodium silicate, Silica, Valorization, Vidrio soluble, Valorización, Microsílice
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