Search Results - "Neves, Roberto de Freitas"

Industrial Kaolin Waste as Raw Material in the Synthesis of the SAPO-34 Molecular Sieve by Pinheiro, Darllan do Rosario, Gonçalves, Leonardo Rodrigues, Sena, Raimunda Lina Pacheco de, Martelli, Marlice Cruz, Neves, Roberto de Freitas, Ribeiro, Nielson Fernando da Paixão

“…Abstract High-purity SAPO-34 was synthesized using industrial kaolin waste produced in the Amazon region as the main source of silicon and aluminium. The…”
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Synthesis and characterization of zeolite NaP using kaolin waste as a source of silicon and aluminum by Hildebrando, Edemarino Araujo, Andrade, Christiano Gianesi Bastos, Rocha Junior, Carlos Augusto Ferreira da, Angélica, Rômulo Simões, Valenzuela-Diaz, Francisco Rolando, Neves, Roberto de Freitas

“…The synthesis of zeolite NaP using kaolin waste, from the Amazon region, as a predominant source of silicon and aluminum has been studied. The zeolitisation…”
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Application of bauxite waste from amazon region in the heavy clay industry by HILDEBRANDO, Edemarino Araujo, SOUZA, Jose Antonio da Silva, ANGELICA, Romulo Simoes, NEVES, Roberto de Freitas

“…In this work, a method was developed for the application of red mud, an alkaline leaching waste, from a bauxite processing plant located in northern Brazil…”
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Color and shade parameters of ultramarine zeolitic pigments synthesized from kaolin waste by Menezes, Raquel Aranha de, Paz, Simone Patrícia Aranha da, Angélica, Rômulo Simões, Neves, Roberto de Freitas, Pergher, Sibele Berenice Castella

“…Ultramarine pigments were successful synthesized from zeolite A obtained from kaolin waste. This waste has been used as an excellent source of silicon and…”
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Mg-bentonite in the Parnaiba Paleozoic basin, northern Brazil by da Paz, Simone Patricia Aranha, Angelica, Romulo Simoes, de Freitas Neves, Roberto

“…Bentonite deposits are rare in Brazil and most of their production comes from a single region. A new bentonite occurrence, the Formosa bentonite from northern…”
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Use of 29Si and 27Al MAS NMR to study thermal activation of kaolinites from Brazilian Amazon kaolin wastes by Maia, Ana Áurea Barreto, Angélica, Rômulo Simões, de Freitas Neves, Roberto, Pöllmann, Herbert, Straub, Chris, Saalwächter, Kay

“…The study of thermal activation of kaolinite at various temperatures to produce highly reactive metakaolinite from Brazilian Amazon kaolin wastes was studied…”
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Síntese hidrotermal de sodalita básica a partir de um rejeito de caulim termicamente ativado by Paz, Simone Patrícia Aranha da, Angélica, Rômulo Simões, Neves, Roberto de Freitas

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Síntese hidrotermal de sodalita básica a partir de um rejeito de caulim termicamente ativado Hydrothermal synthesis of basic sodalite from a thermically activated kaolin waste by Simone Patrícia Aranha da Paz, Rômulo Simões Angélica, Roberto de Freitas Neves

“…Basic sodalite was successfully synthesized by hydrothermal method using kaolin waste as source of Aluminum and Silicon. This waste is mainly composed by…”
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