Analysis of the Incorporation of Scheelite Residue in Kaolinitic Clay of Boa Saúde-RN

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Abstract:

The scheelite occurs mainly in northeastern Brazil, with highest abundance in the states of Rio Grande do Norte and Paraíba - Scheelite Seridó Province. Mining is considered an activity that provides a high environmental degradation due to the large amount of minerals and waste involved. Most mining companies have no technologies or processes that allow the recycling of mineral waste generated. The aim of this study is to evaluate the influence of different percentages of reject on the mechanical properties of scheelite and aesthetic (staining of the final product after firing) of the clay of the city of Boa Saúde - RN. The raw materials used were characterized by XRD, XRF and particle size analysis. Assay was performed by water absorption, linear retraction and bending tests on three points for the characterization of the final product. The raw materials used were from the city of Currais Novos-RN.

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Periodical:

Materials Science Forum (Volumes 727-728)

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844-849

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August 2012

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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[1] L.A.F. Bauer: Materiais de construção. 5 ed. Rio de Janeiro: Livros Técnicos e Científicos, (1995).

Google Scholar

[2] W.S.A. Nascimento: Avaliação dos Impactos Ambientais Gerados por uma Indústria Cerâmica Típica da Região do Seridó. Mestrado (Dissertação). Natal, 2007. Universidade Federal do Rio Grande do Norte. (UFRN/EM). RN.

DOI: 10.22239/2317-269x.01743

Google Scholar

[3] M.A.F. Melo, S.G. Neto, D.M.A. Melo, L.P. Carvalho, J.N. Galdino and S.A.G. Silva: Cerâmica Vol. 48 (2002), p.308.

Google Scholar

[4] R.R. Menezes et al: Revista Matéria Vol. 12 (1) (2007), p.226.

Google Scholar

[5] O Carvalho, J.Y.L. Pereira and J.M. Rego: Perfil Industrial da Cerâmica Vermelha no Rio Grande do Norte: Uma Síntese. SENAI/FUNCERN, Natal, RN, (2006).

Google Scholar