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Khizar Hussain Shah, Noor S. Shah, Gul Afshan Khan, Sadaf Sarfraz, Jibran Iqbal, Aneeqa Batool, Ahmad Jwuiyad, Shabnam Shahida, Changseok Han and Monika Wawrzkiewicz
This study focuses on investigating and comparing the influence of the surface functional groups and chemical matrices of macroporous resin on the Cr(III) exchange mechanism. The results discussed herein indicate that sulfonic resin removed Cr(III) ions ...
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Vladimir Sánchez, María Dolores González, Pilar Salagre and Yolanda Cesteros
5-hydroxymethylfurfural (5-HMF) is an important platform molecule for the synthesis of high-added value products. Several synthesized clay materials, such as mesoporous hectorite and fluorohectorite, in addition to commercial montmorillonite K-10, have b...
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M. M. Rahman Talukder, J. C. Wu, S. K. Lau, L. C. Cui, G. Shimin and A. Lim
Pág. 1 - 4
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Ulla Létinois and Werner Bonrath
The selective hydrogenation of dimedone (1) to the corresponding monoketone 2 over palladium and Amberlyst 15® is reported. The product is a synthetic building block for the fragrance and pharmaceutical industry. Advantages of the new catalyti...
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Gilberto da Cunha Gonçalves, Fernando Cesar Gazola, Maria Angelica Simoes Dornellas de Barros, Pedro Augusto Arroyo
Pág. 1415 - 1419
No presente trabalho, foi estudada a síntese do TAME, em fase líquida, a partir de uma fração C5 e metanol, utilizando Amberlyst 15 como catalisador. A fração C5 utilizada possui uma diolefina, que tem uma alta tendência à formação de gomas e um alto teo...
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Gilberto da Cunha Gonçalves, Fernando Cesar Gazola, Maria Angelica Simoes Dornellas de Barros, Pedro Augusto Arroyo (Author)
Pág. 1415 - 1419
TAME was synthesized in liquid phase from refinery C5 cut and methanol using Amberlyst 15 as catalyst. The C5 stream contains mainly mono-olefins and, in a less amount, a diolefin, which have a high gum formation tendency. The main purpose of this resear...
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Gilberto da Cunha Gonçalves, Fernando César Gazola, Maria Angelica Simoes Dornellas de Barros, Pedro Augusto Arroyo (Author)
Pág. 1401 - 1406
Synthesis of TAME catalyzed by zeolites USY, H-Mordenita, H-ZSM-5 and H-Beta was studied. Reactions were carried out in a batch reactor at 80oC and 10 kgf/cm2, using methanol and reactive isoamylenes (2-methyl-1-butene and 2-methyl-2-butene) from a mono-...
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Gilberto da Cunha Gonçalves, Fernando César Gazola, Maria Angelica Simoes Dornellas de Barros, Pedro Augusto Arroyo
Pág. 1401 - 1406
No presente trabalho foi estudada a síntese do TAME sobre zeólitas USY, H-Mordenita, H-ZSM-5 e H-Beta. As reações foram feitas em um reator batelada, a 80oC e pressão de 10 kgf/cm2, utilizando metanol e isoamilenos reativos (2-metil buteno 1 e 2-metil bu...
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Adriano Morales Gonzales, Pedro Augusto Arroyo
Pág. 1407 - 1414
No presente trabalho, estudou-se a reação de síntese do MTBE sobre zeólitas Beta desaluminizadas e lixiviadas. A desaluminização hidrotérmica e térmica da zeólita HBeta levou a catalisadores menos ativos devido à diminuição do concentração total de sítio...
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Adriano Morales Gonzales, Pedro Augusto Arroyo (Author)
Pág. 1407 - 1414
Synthesis of MTBE on dealuminated and leaching Beta zeolites is provided. Hydrothermal and chemical dealumination of HBeta zeolite leads to less active catalysts due to a decrease in the total concentration of Brönsted acid sites. Furthermore, it has bee...
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