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Your search keyword '"Transparent rice husk glass"' showing total 2 results
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2 results on '"Transparent rice husk glass"'

1. Production of Transparent Soda-Lime Glass from Rice Husk Containing Iron and Manganese Impurities

Author

Jaderson Gonçalves, Gustavo da Silva, Liandra Lima, Daniella Morgado, Marcelo Nalin, Luis E. G. Armas, Chiara Valsecchi, and Jacson W. Menezes

Subjects
transparent rice husk glass, sustainable glass, manganese oxide impurities, antimony oxide, Technology, Chemical technology, TP1-1185
Abstract

Glass is a familiar material that requires abundant mineral sources, with devastating consequences for the environment. Rice husk ash (RHA) presents a very high silica content (>95%) and it can be a very promising alternative source for silica in silica-based glass. However, impurities like manganese and iron, which depend on the rice harvest, might limit RHA use, particularly in the production of optical transparent glasses. In this work, we discussed how Mn and Fe can affect the coloring of the produced glass, and how the effect of these impurities can be removed. First, the RHA was treated with acid solutions, leading to the production of a soda-lime glass with similar transparency to commercial glass (>70%). Secondly, another simpler approach was studied: a small amount of antimony oxide was added in the composition of the glass, obtaining a transparent glass (>80%, same thickness) with RHA.

Published
2020
Full Text
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2. Production of Transparent Soda-Lime Glass from Rice Husk Containing Iron and Manganese Impurities

Author

Chiara Valsecchi, Gustavo da Silva, J. W. Menezes, Daniella Lury Morgado, Marcelo Nalin, L. E. G. Armas, Jaderson L. S. Gonçalves, Liandra Lima, Federal University of Pampa, and Universidade Estadual Paulista (UNESP)

Subjects
inorganic chemicals, Soda-lime glass, Materials science, Sustainable glass, chemistry.chemical_element, 02 engineering and technology, Manganese, lcsh:Chemical technology, complex mixtures, lcsh:Technology, 01 natural sciences, Husk, High silica, manganese oxide impurities, Impurity, Antimony oxide, 0103 physical sciences, lcsh:TP1-1185, Mineral Sources, Manganese oxide impurities, 010302 applied physics, sustainable glass, lcsh:T, technology, industry, and agriculture, General Medicine, respiratory system, 021001 nanoscience & nanotechnology, antimony oxide, Transparent rice husk glass, chemistry, Chemical engineering, transparent rice husk glass, Composition (visual arts), 0210 nano-technology
Abstract

Glass is a familiar material that requires abundant mineral sources, with devastating consequences for the environment. Rice husk ash (RHA) presents a very high silica content (&gt, 95%) and it can be a very promising alternative source for silica in silica-based glass. However, impurities like manganese and iron, which depend on the rice harvest, might limit RHA use, particularly in the production of optical transparent glasses. In this work, we discussed how Mn and Fe can affect the coloring of the produced glass, and how the effect of these impurities can be removed. First, the RHA was treated with acid solutions, leading to the production of a soda-lime glass with similar transparency to commercial glass (&gt, 70%). Secondly, another simpler approach was studied: a small amount of antimony oxide was added in the composition of the glass, obtaining a transparent glass (&gt, 80%, same thickness) with RHA.

Published
2020
Full Text
View/download PDF

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