Solid Liquid Equilibria
Mostrando 1-7 de 7 artigos, teses e dissertações.
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1. Confocal Fluorescence Microscopy and Kinetics of the Cr 3+-Chromate Ion Oxidation Equilibria at the Solid Liquid Interface
Silica-borax pearl samples impregnated with 0.17 and 0.64% Cr3+ were characterized by specific surface area measurements, UV-Vis spectroscopy, energy-dispersive X-ray fluorescence and laser-scanning confocal microscopy. Pearl stability against oxidizing conditions was tested by adding samples to an aqueous hydrogen peroxide solution. The reaction was examine
J. Braz. Chem. Soc.. Publicado em: 2017-09
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2. Solubility measurement and solid-liquid equilibrium model for the ternary system MgBr2 + MgSO4 + H2O at 288.15 K
The solubility of magnesium minerals and the refractive index of the ternary system MgBr2 + MgSO4 + H2O at 288.15 K were investigated using an isothermal dissolution method. It was found that there are two invariant points in the phase diagram and the solubility isotherm of this ternary system consists of three branches, corresponding to equilibrium crystall
Braz. J. Chem. Eng.. Publicado em: 2014-06
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3. Solid-liquid stable phase equilibria of the ternary systems MgCl2 + MgB6O10+ H2O AND MgSO4 + MgB6O10 + H2O at 308.15 K
The solubilities and the relevant physicochemical properties of the ternary systems MgCl2 + MgB6O10 + H2O and MgSO4 + MgB6O10 + H2O at 308.15 K were investigated using an isothermal dissolution method. It was found that there is one invariant point, two univariant curves, and two crystallization regions of the systems. The systems belong to a simple co-satur
Braz. J. Chem. Eng.. Publicado em: 2014-03
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4. Cálculo do equilíbrio sólido-líquido e ajuste de parâmetros para modelos temodinâmicos em misturas binárias e ternárias de ácidos graxos, seus ésteres e triacilgliceróis / Solid-liquid equilibria calculation and parameters determination in thermodynamic models for binary and ternary mixtures of fatty acids, esters and triacylglycerols
O trabalho desenvolvido é de caráter teórico e computacional e tem como objetivo o estudo e aplicação de técnicas de otimização juntamente com análise de convexidade para cálculo do equilíbrio sólido-líquido, utilizando um problema de Programação Não-linear, implementado no software GAMS em conjunto com o software Microsoft Excel, aplicado a
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 09/09/2011
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5. Calculo do equilibrio de fases solido-liquido em misturas binarias por meio de tecnicas de minimização e analise de convexidade
Esse trabalho é de caráter teórico e computacional e tem como objetivo o estudo e aplicação de técnicas de otimização para cálculo do equilíbrio sólido-líquido de misturas graxas binárias de origem natural, utilizando dois métodos: um problema de Programação Não-linear, implementado no software GAMS e o outro, uma análise de equações faze
Publicado em: 2008
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6. Modelagem do equilibrio de fases em misturas de dioxido de carbono supercritico e compostos presentes em produtos naturais / Phase equilibria modeling of mixtures of supercritical carbon dioxide and compounds present in natural products
Modeling and simulation of supercritical extraction processes request a good prediction of conditions of phase equilibrium, conditions that determine the higher concentration of liquid or solid (solute) to be extracted by supercritical fluid (solvent). The main problem in modeling of systems found in supercritica1 extraction processes is the great size diffe
Publicado em: 2002
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7. Modelagem da extração supercritica de oleos essenciais
This work presents complementary and auxiliary methodologies for modeling supercritical extraction of essential oils. The first methodology consists of a mathematical procedure to obtain the fugacity coefficients, from any equation of state. These coefficients are necessary for thermodynamic modeling of the supercritical extraction. This procedure allows to
Publicado em: 1999