Desenvolvimento de material vitrocêramico utilizando diferentes cinza de bagaço de cana de açúcar

• Autor(a) principal: Magalhães, Renata da Silva [UNESP]
• Data de Publicação: 2011
• Tipo de documento: Trabalho de conclusão de curso
• Idioma: por
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://hdl.handle.net/11449/149277; http://www.athena.biblioteca.unesp.br/exlibris/bd/capelo/2017-01-20/000875937.pdf
• topic: Fisica; Bagaço de cana; Cinza (produto de combustão); Vidro; Cristalização; Physics

Brazil is the world's largest producer of sugar and ethanol (45% of world production) using sugar cane and has decreased gas emissions through the use of ethanol and power cogeneration by sugar and alcohol sector. As a result of this process, originates from an ash rich in silica (> 70% / weight), which not having any utility, it is discarded on the ground where the cane is planted. From the perspective of sustainable development, it is necessary to implement new technologies that contribute to valorize these wastes and thus minimize the environmental problems associated with its disposal. Given its composition, one of the possibilities of selling the ash is to use them to obtain stable glass and turn the glass into glass ceramic. In this work it was used the ashes of bagasse from three different plants: two in the region of Presidente Prudente - SP and one in the region of Santo Ignatius - PR. The ashes were mixed with calcium and sodium carbonate and compositions called: Vidro2 (V2). The mixtures were melted and cooled in water to obtain the glasses, which were grinded and subjected to Thermogravimetry Analysis (DTA) to determine the crystallization temperatures. Glass-dust samples were crystallized to form the glass ceramic material at temperatures determined by DTA...