6 dez. Compostos Aromáticos O que são? Propriedades nos grupos funcionais ” aromático” odor 1 ou + anéis planos de átomos estrutura. Joaquim Fernando Mendes da Silva. Updated 29 August Transcript. 1-Etil- 3,5-dimetil(3-metilfenil)naftaleno. E de: Qual o nome de. Compostos Aromaticos – Sertralina, Riboflavina, Acido Acetilsalicilico, Aromaticidade, Ketamina, Heroina, Fluoxetina, Anil, Sibutramina (Portuguese, Paperback).
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Isto faz com que a constante de velocidade k -1 seja muito maior do que k r [ArH].
The composition data of tie-lines, obtained experimentally, were used to calculate the selectivity parameter and the distribution coefficient. With this data, it can be concluded that all the solvents studied have a good capacity for toluene extraction aromatiicos mixtures with decane. Reis, Maria Ines Jacques dos Published: Considerando que o mesitileno tenha constante de velocidade cerca de 40 vezes maior do que a constante de velocidade do benzeno, conforme a Tabela 2.
Thus, best represented the LLE data for the systems studied. B1. USA6 Este trabalho foi iniciado durante o curso de Mestrado cimpostos S.
Reactividade de aldeÃdos e cetonas
The experimental methodology for the determination of LLE data was initially validated by reproducing the literature, and the results showed good agreement between cojpostos data.
Electrophilic substitution and electron transfer, in an exclusive way, are both proposed as the main mechanism for the reaction. Aromatic nitration is one of the most relevant class of reactions in organic chemistry.
USA79 The separation of these components is realized, generally, the liquid-liquid extraction process. The physical properties also of great importance in the understanding of the behavior and interactions that occur aronaticos liquid mixtures.
B34 The separation of these components is realized, generally, the liquid-liquid extraction pr Given comostos above, this study main aims to determine liquid-liquid equilibrium data LLE to study the ability of solvents [diethylene glycol DEGtriethylene glycol TEGglycerol and 2-hydroxyethyl amine format 2-HEAF ] in extracting aromatic mixtures with aliphatic. Estes estudos levaram a resultados inesperados. It has been intensively studied by both experimental, including works in the condensed as well as in the gas phase, and theoretical procedures.
However, the glycerol has presented as the most promising solvent for aromatics extraction. Cuelbas, Claudio Jose Published: The results were considered satisfactory, noting that the NRTL was the model that presented minor deviations in compositions. However, this has some disadvantages such as high cost. Thus, in this study were also studied the density and viscosity of solvent extractors aromatic.
Description: Estudo de solventes alternativos para extração de aromáticos
Cornejo Ponce, Lorena Published: How to cite this article. B38 II Acta, Navarro, Myriam Lorena Melgarejo Published: Desta forma, reatividade e seletividade posicional seriam determinadas em etapas distintas. All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License. In this process, the sulfolane is the most widely used solvent.
Aromatic hydrocarbons are chemical compounds of great interest in the petrochemical industry. These are commonly com;ostos from reformed naphtha, which are in multicomponent mixtures with aliphatic hydrocarbons.
However, the published results do not seem to converge to an unique mechanism.
O primeiro trabalho completo surgiu emusando espectrometria de massas B32 B For this compoztos, many studies are developed by the academic community in order to propose alternative solvents to replace the exclusive use of sulfolane by compounds that are important features like good selectivity, easy recoverability and low costs.
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We review these proposals and discuss the most recent findings. Navarro, Fabiana Maria Salvador Published: Mesquita, Francisca Maria Rodrigues. Estes resultados podem ser interpretados em termos da exotermicidade do processo. Este complstos confirmou, de forma geral, os resultados anteriores.