Results 21 to 30 of about 169,539 (299)
TESTE DE HETEROGENEIDADE PARA O MINÉRIO DE ALUMÍNIO
Holos, 2014 A amostragem pode ser definida como o conjunto de operações destinadas à obtenção de uma amostra representativa de uma dada população ou lote de material.
Daniel Armelim Bortoleto +3 more
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Effect of alumina occurrence on sintering performance of iron ores and its action mechanism
Journal of Materials Research and Technology, 2021 Iron ores always contain several forms of alumina, which may have different effect on sintering performance. In this paper, sinter pot tests were systematically conducted with various alumina types and contents by means of alumina additives substituting ...
Yuxiao Xue +6 more
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Manufacturing and characterization of sustainable macroporous glass foams [PDF]
Cerâmica, 2022 This work produced glass foams from soda-lime glass bottles, bentonite, and alumina by the replica method. Compositions with different contents of bentonite (5, 10, 15, and 20 wt%) were prepared and heat-treated at 800 °C.
S. K. F. da Silva +6 more
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Effect of process parameters on the morphology and adsorption properties of nanocrystalline boehmite [PDF]
Hemijska Industrija, 2014 In the last decade, exploration of transition alumina phases with good adsorption properties has attracted a great research interest from both a fundamental and a practical point of view.
Obrenović Zoran +4 more
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Alumina applied in bone regeneration: Porous α-alumina and transition alumina
Cerâmica, 2022 Abstract Alumina is a polymorphic bioceramic that has been extensively investigated for application in bone regeneration. Dense α-alumina has been considered a suitable biomaterial for dental and orthopedic implants due to its superior mechanical properties. However, its use is limited due to its high inertia in a biological environment.
J. R. S. Silva +5 more
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International Journal of High Technology Ceramics, 1986 Relatively large Al2O3 disc particles (16μm, 41μm) with high aspect ratios (5-20) were incorporated into a fine-grain Al2O3 matrix (-1μm) in order to improve the mechanical properties of sintered Al2O3. The flexural strength depends on the disc size and the microstructure of composites.
UCHIYAMA, Tetsuo +2 more
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Zaštita Materijala, 2018 For more than three decades 4A zeolite has been an irreplaceable ingredient of powder detergents, but there is still striving to it's improvement in order to meet the ever more stringent market and environmental demands.Alumina d.o.o., as one of the ...
Biljana Milovanović +3 more
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Zaštita Materijala, 2017 Alumosilicates have advantages over other adosrbents because they have high adsorption capacity and high selectivity. Due to this fact, the paper investigates the synthesis and characterization of the aluminosilicate materialused as a potential adsorbent
Miladin Gligorić, Zoran Obrenović
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The effect of chemical and mineralogical composition of red mud on alkalinity parameters
Zaštita Materijala, 2017 Red mud is highly alkaline colloidal suspension, which remains after processing bauxite into alumina by Bayer’s proceedings. Despite repeated washing red mud keep strong alkalinity, due to the presence of residual base and a number of alkaline minerals ...
Ljubica Vasiljević, Gordana Ostojić
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The nature and impacts of fines in smelter-grade alumina [PDF]
, 2009 Fines in smelter-grade aluminas art recognized (is a significant process problem in aluminum smelting. However understanding the nature of this fine material and how it impacts the reduction process arc, less clearly understood The combination of new ...
Zujovic, Zoran D. +4 more
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