Salt Industry
Mostrando 13-24 de 53 artigos, teses e dissertações.
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13. THERMODYNAMIC PROPERTIES OF NONAQUEOUS SINGLE SALT SOLUTIONS USING THE Q-ELECTROLATTICE EQUATION OF STATE
Abstract The correlation of thermodynamic properties of nonaqueous electrolyte solutions is relevant to design and operation of many chemical processes, as in fertilizer production and the pharmaceutical industry. In this work, the Q-electrolattice equation of state (EOS) is used to model vapor pressure, mean ionic activity coefficient, osmotic coefficient,
Braz. J. Chem. Eng.. Publicado em: 2015-09
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14. Comportamiento a la corrosión atmosférica marina de aceros autopatinables con estructura ferrítico perlítica y ferrítico martensítica
ABSTRACTThe steel industry constantly faces the challenge of developing new and better steels for diverse needs, on of this necessities is the use of structural steels with higher corrosion resistance to marine atmospheres and improved mechanical properties than those that currently exist. Therefore, it is necessary to systematically research both the influe
Matéria (Rio J.). Publicado em: 2015-09
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15. Influencia de Ni y Ti en la respuesta a la corrosión marina simulada de un acero autopatinable A242
ABSTRACTThere is a great interest in the steel industry to incorporate new products in the market with better properties of those already in production. Among these properties, corrosion resistance is of great importance for countries with a large marine seacoast, like Chile, where chloride ions from sea spray produce corrosion, leading to irreversible failu
Matéria (Rio J.). Publicado em: 2015-09
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16. Estudo da corrosão e corrosão-fadiga em ligas de Al e Al - Li de alta resistência para aplicação aeronáutica / Study behaviour of corrosion and corrosion fatigue in high strength Al and Al - Li alloys for aeronautic application
The aircraft industry is constantly looking for improved materials which offer benefits in terms of performance, weight and cost savings. Corrosion and fatigue of aluminium alloys are major issues in the service life assessment of aircraft structures and in the management of aging air fleets. The aim of this study was to evaluate the corrosion and corrosion
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/09/2012
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17. Polymeric membranes containing silver salts for propylene/propane separation
The separation of olefin/paraffin mixtures is one of the most important processes of the chemical industry. This separation is typically carried out by distillation, which is an energy and capital intensive process. One promising alternative is the use of facilitated transport membranes, which contain specific carrier agents in the polymer matrix that intera
Brazilian Journal of Chemical Engineering. Publicado em: 2012-06
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18. A biodegradation study of forest biomass by Aspergillus niger F7: correlation between enzymatic activity, hydrolytic percentage and biodegradation index
Aspergillus niger F7 isolated from soil was found to be the potent producer of cellulase and xylanase. The residue of forest species Toona ciliata, Celtris australis, Cedrus deodara and Pinus roxburghii was selected as substrate for biodegradation study due to its easy availability and wide use in industry. It was subjected to alkali (sodium hydroxide) treat
Brazilian Journal of Microbiology. Publicado em: 2012-06
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19. Estudo da emissão por fluorescência de ultravioleta na quantificação de um inibidor de corrosão do tipo sal de amônio quaternário em água
Quaternary ammonium salts are the corrosion inhibitors most frequently used by the oil industry. In this study, the ultraviolet fluorescence technique was evaluated for the analysis of a quaternary ammonium salt in water as a corrosion inhibitor. The comparison with standard salt showed that an alkyl aryl quaternary ammonium salt is the main fluorophore, wit
Química Nova. Publicado em: 2012
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20. Controle de estoques de sal: uma inovação da quantificação e no gerenciamento dos recursos naturais da indústria mineral / Controle de estoques de sal: uma inovação da quantificação e no gerenciamento dos recursos naturais da indústria mineral
O fortalecimento da indústria nacional nos últimos 20 anos exigiu a modernização, mecanização e ampliação da produção salineira. A partir disso a produção de sal marinho passou a ser feita num processo de fluxo contínuo, onde o produto é constantemente estocado em pátios, com movimentações diárias de entrada e saída de sal. Até o presente
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/12/2011
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21. CONSTRUÇÃO EM AÇO NO VALE DO AÇO DO ESTADO DE MINAS GERAIS: CRONOLOGIA, CARACTERÍSTICAS E PATOLOGIAS / CONSTRUÇÃO EM AÇO NO VALE DO AÇO DO ESTADO DE MINAS GERAIS: CRONOLOGIA, CARACTERÍSTICAS E PATOLOGIAS
Today, Brazil faces a large economic growth and as a consequence it has provided the growth of civil construction. In this context, buildings need to be implemented in a more agile way with reduction and elimination of waste and work scrap, and the products selection suitable for its intended use. Pressured by globalization and market requirements, steel mil
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/03/2011
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22. Ação estratégica e mudança institucional: o caso do pré-sal.
The symbiotic relationship between Brazilian state and Petrobras precede the creation of the firm itself. As far as 1997 represents the end of the state monopoly over the oil industry activities, 2003 symbolizes a shift in the government atitude regarding its largest company. This relationship became closer in a way that Petrobras representatives, together w
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/02/2011
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23. Desenvolvimento de um sistema computacional para geração automática de mapas de vulnerabilidade como ferramenta de auxílio às ações de prevenção ao derramamento de óleo em áreas costeiras
The northern portion of the Rio Grande do Norte State is characterized by intense coastal dynamics affecting areas with ecosystems of moderate to high environmental sensitivity. In this region are installed the main socioeconomic activities of RN State: salt industry, shrimp farm, fruit industry and oil industry. The oil industry suffers the effects of coast
Publicado em: 2010
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24. Practicies and perceptions of salt entrepreneurship in Rio Grande do Norte / Responsabilidade social empresarial: percepções e práticas do empresariado salineiro do Rio Grande do Norte.
O debate em torno da temática da Responsabilidade Social Empresarial RSE envolve aspectos econômicos, sociais, culturais e simbólicos presentes nas relações estabelecidas entre empresa e sociedade. Na especificidade da realidade brasileira, a RSE, compreendida como ações empresariais, de caráter externo e/ou interno, que contribuem para os processos
Publicado em: 2010