2005
DOI: 10.1590/s0100-40422005000200018
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Produção de etilenoglicóis e derivados por reações catalíticas do óxido de eteno

Abstract: Recebido em 15/1/04; aceito em 15/10/04; publicado na web em 17/2/05 PRODUCTION OF ETHYLENEGLYCOLS AND DERIVATES BY CATALYTIC REACTIONS OF ETHYLENE OXIDE. Products resulting from the ethoxylation of hydroxylated compounds, especially water and ethanol, are of great commercial importance. This work presents several aspects concerning the catalytic reactions of ethylene oxide, a chemical substance used in the production of a wide variety of products. Mechanisms of ethoxylation, distribution of products, formatio… Show more

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Cited by 7 publications
(7 citation statements)
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“…It is an extremely strained and reactive system which easily undergoes ring-opening, making it an important intermediate in many organic syntheses. These reactions can occur with a large variety of reactants over a wide range of reaction conditions. …”
Section: Introductionmentioning
confidence: 99%
“…It is an extremely strained and reactive system which easily undergoes ring-opening, making it an important intermediate in many organic syntheses. These reactions can occur with a large variety of reactants over a wide range of reaction conditions. …”
Section: Introductionmentioning
confidence: 99%
“…The products generated from ethanol are based on well-established ethanol chemistry, inherited from current refineries, processes like reforming, catalytic cracking and hydrocraking can be used to produce syngas that used in Fischer-Tropsch process or other catalytic process can generate a complete platform of derivatives. Recently there have been studies done in Brazil concerning the synthesis of heterogeneous catalysts using ethylene from ethanol and ethylene oxide, thereby producing a complete range of products such as plastic -PET, solvents, resins, paints, automotive fluids and other (MARTINS and CARDOSO, 2005).…”
Section: Ethanol and Alcohol Chemistrymentioning
confidence: 99%
“…Os sítios bási-cos do catalisador promovem a abstração de um próton do grupo metilênico do tolueno formando um intermediário carbânium 71 . (11) Uma reaçãoentre as reações muito estudadas na avaliação da basicidade e da acidez de catalisadores sólidos, é a desidrogenação-desidratação de álcoois. Quando se emprega isopropanol 4 , os produtos formados, acetona e propeno, provêm exclusivamente da reação de desidrogenação e desidratação, respectivamente, sendo que os sítios básicos são responsáveis pela primeira e os sítios ácidos, pela segunda reação.…”
Section: Alquilação Do Toluenounclassified
“…Um exemplo do efeito desta seletividade, denominada como seletividade de forma, é a adição cíclica do dióxido de carbono a epóxidos 9,10 . Esta reação gera produtos que apresentam grande variedade de aplicações despertando, conseqüen-temente, o interesse industrial 11 . O objetivo deste trabalho é examinar uma das faces catalíticas das zeólitas menos exploradas na literatura, que provou ser muito valiosa na síntese de intermediários químicos e na química fina.…”
Section: Introductionunclassified