Hierarchical Beta zeolites obtained in concentrated reaction mixtures as catalysts in tetrahydropyranylation of alcohols

2020 ◽  
Vol 594 ◽  
pp. 117380 ◽  
Author(s):  
Roman Barakov ◽  
Nataliya Shcherban ◽  
Pavel Yaremov ◽  
Igor Bezverkhyy ◽  
Valentina Tsyrina ◽  
...  
Keyword(s):  
Beta Zeolites ◽  
Hierarchical Beta

Synthesis of high-Si hierarchical beta zeolites without mesoporogen and their catalytic application in the methanol to propene reaction

2018 ◽  
Vol 8 (11) ◽  
pp. 2966-2974 ◽  
Author(s):  
Xuebin Zhao ◽  
Linying Wang ◽  
Peng Guo ◽  
Nana Yan ◽  
Tantan Sun ◽  
...  
Keyword(s):  
Single Crystalline ◽  
Catalytic Application ◽  
Beta Zeolites ◽  
First Time ◽  
Hierarchical Beta

High-Si single-crystalline beta zeolites with intracrystal mesopores were synthesized for the first time and investigated as catalysts for the methanol to propene (MTP) reaction.

Effect of hierarchical porosity in Beta zeolites on the Beckmann rearrangement of oximes

2017 ◽  
Vol 7 (1) ◽  
pp. 181-190 ◽  
Author(s):  
M. Linares ◽  
C. Vargas ◽  
A. García ◽  
C. Ochoa-Hernández ◽  
J. Čejka ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Beckmann Rearrangement ◽  
Molar Ratios ◽  
Hierarchical Porosity ◽  
Beta Zeolites ◽  
Hierarchical Beta

Hierarchical Beta zeolites with different Si/Al molar ratios, synthesized by crystallization of silanized protozeolitic units, were investigated in the liquid-phase Beckmann rearrangement of cyclohexanone and cyclododecanone oximes.

Exploring the impact of synthetic strategies on catalytic cracking in hierarchical beta zeolites via hydrothermal desilication and organosilane-templated synthesis

2020 ◽  
Vol 10 (14) ◽  
pp. 4602-4611 ◽  
Author(s):  
Ke Zhang ◽  
Sergio Fernandez ◽  
Elisha S. Converse ◽  
Sarah Kobaslija
Keyword(s):  
Catalytic Cracking ◽  
Catalytic Properties ◽  
Hierarchical Zeolites ◽  
Templated Synthesis ◽  
Beta Zeolites ◽  
The Creation ◽  
The Impact ◽  
Hierarchical Beta

Hierarchical zeolites can be synthesized by different strategies, resulting in the creation of mesoporosity with different configurations (inter-crystalline or intra-crystalline) in addition to unique porous and catalytic properties.

Fast synthesis of hierarchical Beta zeolites with uniform nanocrystals from layered silicate precursor

2017 ◽  
Vol 248 ◽  
pp. 30-39 ◽  
Author(s):  
Gang Huang ◽  
Peng Ji ◽  
Hao Xu ◽  
Jin-Gang Jiang ◽  
Li Chen ◽  
...  
Keyword(s):  
Layered Silicate ◽  
Beta Zeolites ◽  
Fast Synthesis ◽  
Hierarchical Beta

Toward rational design of hierarchical beta zeolites: An overview and beyond

AIChE Journal ◽  
2020 ◽  
Vol 66 (9) ◽  
Author(s):  
Sergio Fernandez ◽  
Michele L. Ostraat ◽  
Ke Zhang
Keyword(s):  
Rational Design ◽  
Beta Zeolites ◽  
Hierarchical Beta

Organotemplate-free synthesis of hierarchical beta zeolites

2018 ◽  
Vol 316 ◽  
pp. 26-30 ◽  
Author(s):  
Ke Zhang ◽  
Sergio Fernandez ◽  
Jeremy T. O’Brien ◽  
Tatiana Pilyugina ◽  
Sarah Kobaslija ◽  
...  
Keyword(s):  
Beta Zeolites ◽  
Hierarchical Beta

Properties of hierarchical Beta zeolites prepared from protozeolitic nanounits for the catalytic cracking of high density polyethylene

2017 ◽  
Vol 531 ◽  
pp. 187-196 ◽  
Author(s):  
Vinícius P.S. Caldeira ◽  
Angel Peral ◽  
María Linares ◽  
Antonio S. Araujo ◽  
Rafael A. Garcia-Muñoz ◽  
...  
Keyword(s):  
Catalytic Cracking ◽  
High Density Polyethylene ◽  
High Density ◽  
Beta Zeolites ◽  
Hierarchical Beta

Catalytic activity of hierarchical beta zeolites in the Prins cyclization of (−)-isopulegol with acetone

2021 ◽  
pp. 118131
Author(s):  
Mathias Laluc ◽  
Roman Barakov ◽  
Päivi Mäki-Arvela ◽  
Nataliya Shcherban ◽  
Dmitry Yu. Murzin
Keyword(s):  
Catalytic Activity ◽  
Prins Cyclization ◽  
Beta Zeolites ◽  
Hierarchical Beta

Hierarchical Beta zeolites as catalysts in a one-pot three-component cascade Prins–Friedel–Crafts reaction

2020 ◽  
Vol 22 (20) ◽  
pp. 6992-7002 ◽  
Author(s):  
Roman Barakov ◽  
Nataliya Shcherban ◽  
Pavel Yaremov ◽  
Igor Bezverkhyy ◽  
Jiří Čejka ◽  
...  
Keyword(s):  
Relative Concentration ◽  
Acid Sites ◽  
Bronsted Acid ◽  
One Pot ◽  
Brønsted Acid Sites ◽  
Hierarchical Zeolites ◽  
Beta Zeolites ◽  
Brönsted Acid ◽  
Medium Strength ◽  
Hierarchical Beta

Enhanced 4-aryltetrahydropyran yields are correlated with the relative concentration of medium-strength Brønsted acid sites on the mesopore surface in hierarchical zeolites.

Rapid, Non-Toxic Synthesis of Beta Zeolites

2018 ◽  
Author(s):  
Felix Hemmann ◽  
Jonathan Hackebeil ◽  
Andreas Lißner ◽  
Florian Mertens
Keyword(s):  
Hydrofluoric Acid ◽  
Molecular Sieves ◽  
Toxic Chemicals ◽  
Lewis Acidity ◽  
Beta Zeolite ◽  
Seeded Growth ◽  
Related Research ◽  
Beta Zeolites ◽  
Growth Method ◽  
Fast Synthesis

Molecular sieves with beta zeolite topology are promising catalysts for various reactions as they exhibits extraordinary Lewis acidity. However, their industrial application and related research in academica is hindered because their synthesis is time consuming and typically involves toxic chemicals as hydrofluoric acid. Therefore, tetraethylammonium fluorid was tested as a non-toxic fluotide source for the synthesis of beta zeolites. In combination with the previously reported nano-seeded growth method, a fast synthesis of beta zeolites only involving non-toxic chemicals was possible. Synthesized zeolites show comparable selectivity in the Bayer-Villinger oxidation as conventional zeolites synthesized with hydrofluoric acid.<br>

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