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Magnetically recoverable, nanoscale-supported heteropoly acid catalyst for green synthesis of biologically active compounds in water（图）
Core-shell particle Magnetically recoverable catalyst Heteropoly acid Xanthene Hydroacridine
2013/9/25
12-Tungstophosphoric acid supported on aerosil silica and silica-coated γ-Fe2O3 nanoparticles was prepared and characterized using transmission electron microscopy, scanning electron microscopy, and i...
Alkylation of Benzene with 1-Decene Using Silica Supported Preyssler Heteropoly Acid: Statistical Design with Response Surface Methodology（图）
linear alkylbenzene heteropoly acid preyssler silica supported catalyst response surface method
2013/10/8
The response surface method (RSM) was applied to study the liquid phase alkylation of benzene with 1-decene catalyzed by means of silica supported preyssler heteropoly acid. A three step experimental ...
Active Catalyst Derived from Nb-containing Heteropoly Acids: Their Acid Properties and Catalysis in Friedel-Crafts Reactions
Heteropoly acid Friedel-Crafts reaction Support effect NMR EXAFS Temperature programmed desorption
2010/9/8
A ternary-mixed oxide catalyst, H3PO4-WO3-Nb2O5, was prepared with the evacuation of a mixed solution of phosphoric acid, niobic oxalate, and (NH4)10W12O41, followed by calcination in air. We found th...
Halogen-free Friedel-Crafts Acylation of Toluene with Benzoic Anhydride over Insoluble Heteropoly Acid Catalyst
Friedel-Crafts acylation Phenyl tolyl ketone Chlorine free process
2009/7/24
Friedel-Crafts acylation of toluene with benzoic anhydride to produce phenyl tolyl ketone was studied over various ion exchanged heteropoly acids (HPA). Metal chloride such as AlCl3 was not used as a...