Sodium Chlorides
Mostrando 1-12 de 16 artigos, teses e dissertações.
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1. Corrosion resistance of rolled and rerolled super martensitic steel in media containing chlorides and hydrogen sulfide
ABSTRACT In the oil and gas industry, super matensitic steels have been used primarily in the manufacture of seamless steel pipe for use in drilling oil and gas. The objective of this work is to evaluate the corrosion resistance of rolled and rerolled super martensitic steels in electrolytes of aqueous solution of NaCl 35 g/L, and aqueous solution of NaCl 12
Matéria (Rio J.). Publicado em: 02/10/2017
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2. Rheological Characterization of Bentonite Dispersions with Xanthan for Oil Well Drilling Fluids
Shear tests using a coaxial cylinders viscometer were performed in order to determine the rheological and thixotropic properties of xanthan gum dispersions with sodium bentonite in the presence of high salt concentrations of sodium and calcium chlorides. The dispersions rheology with different temperatures and concentrations of NaCl, CaCl2 and xanthan gum we
Mat. Res.. Publicado em: 05/06/2017
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3. PREPARATION AND PERFORMANCE STUDIES ON POLYETHERSULFONE ULTRAFILTRATION MEMBRANES MODIFIED WITH GELATIN FOR TREATMENT OF TANNERY AND DISTILLERY WASTEWATER
Abstract In this study polyethersulfone ultrafiltration membrane were prepared with the modifier gelatin at 0, 5, 10, 15 and 20 wt % using DMF as solvent by phase inversion process. Morphologies and characteristics of the membranes were investigated through the methods of SEM, XRD, contact angle measurements. The performance of the modified membrane for the
Braz. J. Chem. Eng.. Publicado em: 2015-03
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4. Detecção de resíduos de soluções sanitizantes empregadas em pedilúvio para bovinos no leite e solo / Residues detection of sanization solution used in foot bath for bovines in milk and soil
Apesar do hipoclorito de sódio e o sulfato de cobre serem compostos químicos utilizados na preparação de soluções empregadas em pedilúvio para bovinos, visando o tratamento e prevenção de enfermidades digitais, são escassas as informações técnicas com relação à produção de resíduos por estas substâncias nos produtos de origem animal. O ob
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 04/07/2011
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5. Detecção de resíduos de soluções sanitizantes empregadas em pedilúvio para bovinos no leite e solo / Residues detection of sanization solution used in foot bath for bovines in milk and soil
Apesar do hipoclorito de sódio e o sulfato de cobre serem compostos químicos utilizados na preparação de soluções empregadas em pedilúvio para bovinos, visando o tratamento e prevenção de enfermidades digitais, são escassas as informações técnicas com relação à produção de resíduos por estas substâncias nos produtos de origem animal. O ob
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 04/07/2011
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6. Ruminal and metabolic parameters of sheep induced to sub-acute ruminal acidosis and fed with probiotic, monensin and selenium yeast / Parâmetros Metabólicos e Ruminais de Ovelhas Induzidas à Acidose Ruminal Sub-Clínica, Suplementadas com Probiótico, Monensina e Selênio Levedura
The aim of this study was to observe the efficiency of probiotics, monensin and selenium yeast fed to sheep induced to sub-acute ruminal acidosis (SARA) on the maintenance of normal ruminal and metabolic parameters. Thirty six sheep that averaged 12 months old and 31 8 kg of body weight were used. The sheep were kept in a confinement system, receiving a diet
Publicado em: 2009
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7. Blood serum components and serum protein test of Hybro-PG broilers of different ages
Blood serum samples of HYBRO PG broilers were analyzed, with 30 samples collected from 21-day-old broilers (G1), 30 from 35-day-old birds (G2), and 30 from 42-day-old birds (G3), with the aim of establishing normal values of some blood serum parameters. The activities of the enzymes gamma-glutamyl-transferase (GGT), aspartate aminotransferase (AST), creatine
Revista Brasileira de Ciência Avícola. Publicado em: 2007-12
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8. Avaliação e identificação da toxicidade (Toxicity Identification Evaluation - TIE) do efluente líquido do pólo industrial de Belford Roxo, RJ e sua contribuição na qualidade das águas do corso inferior do Rio Sarapuí, sub-bacia do Rio Iguaçú, Bacia da Baía da Guanabara, RJ, Brasil / Toxicity identification evaluation (TIE) of Belford Roxo industrial plant effluent and its contribuition in water quality of downstream of Sarapuí River, Iguaçu River Sub-Basin, Baia da Guanabara Basin, RJ, Brazil
A qualidade dos efluentes líquidos do Pólo Industrial de Belford Roxo e das águas do Rio Sarapuí foram avaliadas por meio de ensaios de toxicidade aguda com Daphnia similis, Ceríodaphnia dúbia e Danio rerio e ensaios de toxicidade crônica com Ceriodaphnia dúbia e Selenastrum capricornutum. Em associação ao monitoramento ecotoxicológico, foram real
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/10/2006
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9. Recuperação de metais de catalisadores de hidrorrefino usados via fusão com KHSO4
This work describes a process for metal recovery from spent NiMo and CoMo/Al2O3 commercial hydrorefining catalysts. The samples were treated by fusion with potassium hydrogen sulfate (5 h, 600 ºC) with a KHSO4/catalyst mass ratio of 10:1. After fusion the solid was solubilized in water (100 ºC), leaving silicon compounds as residue. Losses of nickel and co
Química Nova. Publicado em: 2006-07
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10. Studies on Salt Action: IX. The Additive and Antagonistic Effects of Sodium and Calcium Chlorides Upon Viability of Bact. coli
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11. Decrease in nitrate reductase activity in extracts of Trichoderma viride Incubated with chlorides.
Reduced nicotinamide adenine dinucleotide phosphate-dependent nitrate reductase activity in crude extracts of Trichoderma virde was significantly inhibited by physiological concentrations of ammonium chloride, sodium chloride, and potassium chloride, but not by ammonium or sodium sulfate. The chloride inhibition of nitrate reductase activity increased in a l
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12. Effect of Electrolytes on Differentiation in Achlya sp.
Some factors controlling the differentiation of sporangia and gemmae in an isolate of Achlya sp. were investigated by replacement culture technique. Factors in the replacement medium which affect differentiation were as follows: A) Calcium is required for the differentiation of both sporangia and gemmae. B) Calcium cannot be replaced by magnesium, potassium