Journal ArticleDOI
Alkylation of toluene with methanol on microporous MxH3−XPW12O40 [M=K+, Cs+, NH4 + and Tl+]
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TLDR
In this article, a linear correlation was observed between protein selectivity and number of strong acid sites with strength of H 0≤−5.6.p-Xylene selectivity was evaluated as a function of x.Abstract:
Alkylation of toluene was carried out on microporous salts of phosphotungstic acid. Among the systems studied, M2.5H0.5PW12O40 showed maximum catalytic activity.p-Xylene selectivity was evaluated as a function of x. A linear correlation was observed betweenpara-selectivity and number of strong acid sites with strength of H0≤−5.6.read more
Citations
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Journal ArticleDOI
The Acidity and Catalytic Activity of Supported Acidic Cesium Dodecatungstophosphates Studied by MAS NMR, FTIR, and Catalytic Test Reactions
TL;DR: The results of catalytic studies show that cesium salts of dodecatungstophosphoric acid with low Cs content supported on silica or MCM-41 are active, selective, and recyclable catalysts in Friedel-Crafts alkylations (isopropylation, transalkylation), the aromatic ortho-Claisen rearrangement, and the dehydration of pinacol as mentioned in this paper.
Journal ArticleDOI
Efficient dehydration of ethanol on the self-organized surface layer of H3PW12O40 formed in the acidic potassium tungstophosphates
L. Matachowski,Alicja Drelinkiewicz,E. Lalik,Małgorzata Ruggiero-Mikołajczyk,Dariusz Mucha,Joanna Kryściak-Czerwenka +5 more
TL;DR: In this paper, the secondary structures of the K2HPW12O40 and K2.5H0.5PW 12O40 salts were evaluated for the vapour-phase dehydration of ethanol.
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Flame retardancy of poly(styrene-co-acrylonitrile) by the synergistic interaction between clay and phosphomolybdate hydrates ☆
TL;DR: In this paper, a combination of montmorillonite (MT) clay and catalysts was used to explore possible synergistic effects in reducing the flammability of poly(styrene-co-acrylonitrile) (SAN).
References
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Journal ArticleDOI
Selective alkylation of toluene with methanol to produce para-xylene
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Journal ArticleDOI
Insoluble heteropoly compounds as highly active catalysts for liquid-phase reactions
TL;DR: In this paper, a liquid phase alkylation of m -xylene or trimethylbenzene with cyclohexene was studied using heteropoly compounds and other typical solid acids as the catalysts.
Book ChapterDOI
Organic Catalysis over Crystalline Aluminosilicates
P.B. Venuto,P.S. Landis +1 more
TL;DR: In this paper, it is shown that catalytic activity in ion-exchanged faujasites is influenced by cation type, cation location in the lattice, zeolite Si/Al ratio, and the presence of proton donors.
Journal ArticleDOI
Alkylation on synthetic zeolites: I. Alkylation of toluene with methanol
TL;DR: In this article, the catalytic activity and properties peculiar to zeolite Y in various cationic and decationized forms during the alkylation reaction of toluene with methanol were investigated.