Ore Quality Control
Mostrando 1-8 de 8 artigos, teses e dissertações.
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1. DIFERENCIAÇÃO CATIÔNICA DE BENTONITAS POR INFRAVERMELHO: UM ESTUDO DOS EFEITOS DA HIDRATAÇÃO DOS CÁTIONS TROCÁVEIS
In the bentonite industry, the most common procedure for quality control of the ore and the sodium activation process is the swelling method. However, this tool is restricted only to the differentiation of the sodium and non-sodium types, not considering the other cationic varieties. The objective of this study was to establish parameters for cationic differ
Quím. Nova. Publicado em: 2021-03
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2. Aspectos de la formación de polvo volátil en la industria del cobre primario
ABSTRACT In addition to the production of primary copper and ferro silicate slag, the formation of significant amounts of flue dust plays an increasingly important role in today’s copper industry. While valuable elements such as copper and precious metals primarily remain in the heavier, denser products, others such as zinc and lead preferably accumulate i
Matéria (Rio J.). Publicado em: 19/07/2018
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3. O impacto do tipo de amostragem no controle de qualidade na lavra = Influence of the sampling method on grade control
Um dos grandes desafi os enfrentados pela indústria mineral é a difi culdade em prover à usina de benefi ciamento minérios que possuam as especifi cações de teores adequadas para seu bom desempenho. O conhecimento geológico das diferentes litologias que formam uma jazida é etapa fundamental para a garantia da qualidade esperada do minério, mas não
Publicado em: 2011
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4. Caracterização de minério de ferro por espectroscopia de reflectância difusa
The identification and quantification of the mineralogical phases present in iron ore is of crucial importance, both for quality control and well as for mine planning, processing, etc.. The element iron is usually found in the form of oxides or hydroxides, such as hematite (α- Fe2O3), goethite (α-FeOOH) and magnetite (Fe3O4), and their colors are a
Publicado em: 2010
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5. Aprimoramento do controle de qualidade do minério no planejamento de lavra de curto prazo: estudo de caso. / Improvement of the quality control of mining en the planning of short term - cause study.
Improve knowledge of the ore mined is a challenge faced daily by mining companies. This paper is a study in apatite mine, located in the city of Cajati, within São Paulo,propriety of Bunge Fertilizantes S/A, where are treated issues related to short term planning of the mine to improve procedures for collecting dust samples drilling, which are systematicall
Publicado em: 2009
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6. APLICAÇÃO DE MOLÉCULAS AUTO-ORGANIZÁVEIS (SAM) EM FILMES FINOS DE SnO2 / APPLICATION OF SELF ASSEMBLED MOLECULES (SAM) IN THIN FILMS SnO2
Thin films of tin dioxide (SnO2) with the addition of doping are widely used because its various applications, so develop a search on this subject is of great value technology, since many different forms of doping, formulation and preparation, can be made and modified, intended to improve this material according to their physical and chemical properties. Thi
Publicado em: 2008
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7. Co-processed Clinker: Integrated Technology Product for the Cement Industry Sustainability and Competitiveness / Clínquer Coprocessado: Produto de Tecnologia Integrada para Sustentabilidade e Competitividade da Indústria de Cimento
In August 2001, in Brazil, there were seven cement plants with and an increasing number of others on the way to get the permit to co-processing, i.e. burning industrial wastes in their kilns as substitutes for fossil fuels. For over five years now the Companhia de Cimento Ribeirão Grande has counted on partial substitution of a blend of different waste stre
Publicado em: 2001
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8. O Brasil imita o Japão ? : a qualidade em empresas de autopeças
The object of this work is to analyse the incorporation of japanese organizational methods, mainly quality control methods, in three auto-part companies in the state of São Paulo. These methods were developed in post-war Japan by adaptating North American and European technologies to Japanese conditions, mainly in the automobile industry. They are based in
Publicado em: 1994