Sodium Hexametaphosphate
Mostrando 1-12 de 15 artigos, teses e dissertações.
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1. Simulação de condição de fluxo em duto circular transportando polpa de bauxita de Paragominas (PA) na presença de aditivo modificador de viscosidade
RESUMO Sistemas de bombeamento de minérios por dutos tem atraído o interesse de mineradoras pois se tornam uma alternativa de transporte muito eficiente. Dentre os maiores desafios no projeto de bombeamento por dutos está a estimativa do fator de atrito, já que são muitas as variáveis que afetam este parâmetro. Uma amostra de polpa de bauxita de Parag
Matéria (Rio J.). Publicado em: 25/11/2019
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2. Reversibility of the Hardening Process of Plinthite and Petroplinthite in Soils of the Araguaia River Floodplain under Different Treatments
ABSTRACT Although ferruginous materials occur frequently in soils of tropical regions, information about the reversal of the hardening process of these materials is scarce. This study assessed the influence of different chemical treatments and periods of immersion on the reversibility of the hardening process of plinthite and petroplinthite in soils of the A
Rev. Bras. Ciênc. Solo. Publicado em: 02/07/2018
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3. A new method to determine the density and water absorption of fine recycled aggregates
The construction industry keeps on demanding huge quantities of natural resources, mainly minerals for mortars and concrete production. The depletion of many quarries and environmental concerns about reducing the dumping of construction and demolition waste in quarries have led to an increase in the procuring and use of recycled aggregates from this type of
Mat. Res.. Publicado em: 21/05/2013
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4. Avaliação in vitro e in situ do potencial erosivo do suco de laranja modificado por cálcio e alguns polímeros alimentares / In vitro and in situ evaluation of the erosive potential of the orange juice modified with calcium and some food-approved polimers
O objetivo deste trabalho foi avaliar in vitro e in situ o potencial erosivo do suco de laranja modificado por cálcio e alguns polímeros alimentares. Este estudo foi dividido em quatro fases. Na primeira, as seguintes substâncias: lactato de cálcio (Ca), goma xantana (XG), hexametafosfato de sódio (HMP), tripolifosfato de sódio (STP), pirofosfato de s�
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/06/2011
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5. Flotação aniônica de minério de ferro
The increasing demand for iron ore by the consumer market provides the exploitation and concentration of marginal ores (low Fe and high contents of SiO2 and other impurities). However, for the production of poor and complexes ore concentrates within the specifications of the market it is necessary to search new processing routes among them can highlight the
Publicado em: 2010
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6. Efeito da dispersão na deslamagem e flotação de polpas de minérios hematíticos itabiríticos
Some iron ore types from Alegria and Fabrica Nova mines, mainly in the most superficial portions of their deposits, present higher hydration levels than those located in depth, being potentially generators of slimes and high alumina and phosphorus grades in the processed products. The main objective of this work was to investigate the effects of addition of
Publicado em: 2010
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7. Sodium tripolyphosphate and sodium hexametaphosphate in preventing dental calculus accumulation in dogs / Tripolifosfato de sÃdio e hexametafosfato de sÃdio na prevenÃÃo de ondontÃlitos em cÃes
Considerando a importÃncia de uma perfeita saÃde bucal, o objetivo deste trabalho foi avaliar o efeito de raÃÃes enriquecidas de diferentes formas com diferentes fosfatos sobre o acÃmulo de cÃlculo dentÃrio (odontÃlitos) em cÃes e, adicionalmente, correlacionar a profundidade do sulco gengival com o grau de ocorrÃncia do cÃlculo dentÃrio. O exper
Publicado em: 2007
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8. Sediment morphology and distribution in a reforested riparian zone / Caracterização e distribuição espacial dos sedimentos depositados numa zona ripária reflorestada
Agricultural pratices in the state of São Paulo - Brazil, are directly responsible for the suppression of the natural vegetation cover and soil degradation. The natural vegetation was substituted by coffee, pastures, citrus and sugar-cane crops, over centuries of occupation and land use. The native forest recuperation prevents soil erosion and reduces envir
Publicado em: 2006
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9. Contribuição ao estudo da extração e concentração do leite de soja
Extraction and concentration of soy milk was studied by means of the following sequence of operations: soaking, enzymatic inactivation, grinding, separation of insoluble solids, and concentration in a centrifugal evaporator. The soaking process was performed at 25°C and 60°C in fresh water, in 0,5% sodium bicarbonate solution. and in 0,5% sodium hexametaph
Publicado em: 1974
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10. Influence of Phosphate Compounds on Certain Fungi and Their Preservative Effects on Fresh Cherry Fruits (Prunus cerasus, L.)
Studies were conducted to ascertain the retarding effects of four phosphate compounds (sodium hexametaphosphate, sodium tripolyphosphate, sodium tetraphosphate, and tetrasodium pyrophosphate) on molding of fresh cherries (Prunus cerasus, L.). In vitro studies on their antimycotic effects against the most common fungal spoilers, Penicillium expansum, Rhizopus
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11. Sodium hexametaphosphate sensitizes Pseudomonas aeruginosa, several other species of Pseudomonas, and Escherichia coli to hydrophobic drugs.
Many gram-negative bacteria are known to be remarkably resistant to hydrophobic noxious agents by virtue of their outer membranes (OM). We investigated, by using four different assay methods, the ability of sodium hexametaphosphate (HMP) to disrupt this OM barrier. (i) In the growth inhibition assay, HMP was found to sensitize strains of Pseudomonas aerugino
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12. Influence of Sodium Hexametaphosphate on Selected Bacteria
Sodium hexametaphosphate (HEX), the solvent of calcium alginate wool used in swabbing inanimate surfaces was studied relative to its effect on various bacterial populations, both pure cultures and wild. It was found that bacteria in wild populations were greatly inhibited, and that a percentage reduction of count was directly related to concentration of HEX.