ChemInform Abstract: Acidic Alkali Metal Salts and Ammonium Salts of Keggin-Type Heteropoly Acids as Efficient Solid Acid Catalysts for Liquid-Phase Friedel- Crafts Reactions.

ChemInform ◽  
2010 ◽  
Vol 24 (19) ◽  
pp. no-no
Author(s):  
Y. IZUMI ◽  
M. OGAWA ◽  
W. NOHARA ◽  
K. URABE
Keyword(s):  
Liquid Phase ◽  
Alkali Metal ◽  
Solid Acid ◽  
Ammonium Salts ◽  
Metal Salts ◽  
Solid Acid Catalysts ◽  
Heteropoly Acids ◽  
Acid Catalysts ◽  
Alkali Metal Salts ◽  
Keggin Type

Preparation of Core-Shell Silica - 12-Tungstophosphoricacid Nanoparticles for Acylation of Aromatics

2013 ◽  
Vol 706-708 ◽  
pp. 219-223
Author(s):  
Hsiu Ling Hsu ◽  
Rosilda Selvin ◽  
L. Selva Roselin
Keyword(s):  
Liquid Phase ◽  
High Activity ◽  
Solid Acid ◽  
Coke Formation ◽  
Solid Acid Catalysts ◽  
Core Shell ◽  
Acid Catalysts ◽  
Shell Nanoparticles ◽  
Core Shell Nanoparticles ◽  
Enhanced Selectivity

A variety of solid acid catalysts especially 12-Tungstophosphoricacid (DTP) supported on silica has been reported for the acylation of anisole, veratrole and toluene. However, the activity of this catalyst is susceptible to coke formation or poor activity. This paper reports the novelties of steam treated SiO2-DTP core-shell nanoparticles, which exhibits tremendous stability, high activity and enhanced selectivity in the liquid-phase acylation of anisole, veratrole and toluene as compared to conventional DTP supported on silica.

ChemInform Abstract: HETEROPOLY ACIDS AS SOLID-ACID CATALYSTS

1985 ◽  
Vol 16 (47) ◽  
Author(s):  
Y. ONO ◽  
M. TAGUCHI ◽  
GERILE GERILE ◽  
S. SUZUKI ◽  
T. BABA
Keyword(s):  
Solid Acid ◽  
Solid Acid Catalysts ◽  
Heteropoly Acids ◽  
Acid Catalysts

The hydrophilic/hydrophobic effect of porous solid acid catalysts on mixed liquid phase reaction of esterification

2009 ◽  
Vol 10 (13) ◽  
pp. 1734-1737 ◽  
Author(s):  
Hong Liu ◽  
Nianhua Xue ◽  
Luming Peng ◽  
Xuefeng Guo ◽  
Weiping Ding ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Solid Acid ◽  
Hydrophobic Effect ◽  
Porous Solid ◽  
Solid Acid Catalysts ◽  
Acid Catalysts ◽  
Phase Reaction ◽  
Liquid Phase Reaction
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