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Silica supported phosphotungstic acid

HIGHLY ACTIVE SILICA SUPPORTED PHOSPHOTUNGSTIC ACID CATALYST FOR ACYLATION REACTIONS... [Pg.221]

Highly active silica supported phosphotungstic acid catalyst 223... [Pg.223]

Jin, T.-S., Xiao, J.-C., Wang, Z.-H., Li, T.-S. Silica gel-supported phosphotungstic acid (PTA) catalyzed acylation of alcohols and phenols with acetic anhydride under mild reaction conditions. J. Chem. Res., Synop. 2003, 412-414. [Pg.671]

In order to increase the stability, HPAs were incorporated in sols of alumina [11] and silica [12]. HPAs immobilized on supports like silica, although stable in the presence of water, could not be used as electrolytes in fuel cells in the powdered form. For this reason, composite membranes [13, 14] have been developed, using a polymer as binder for the formation of thermally and mechanically resistant membranes with low gas permeability and silicotungstic acid or phosphotungstic acid immobilized on silica as the inorganic proton conductor. [Pg.117]

See other pages where Silica supported phosphotungstic acid is mentioned: [Pg.644]    [Pg.145]    [Pg.644]    [Pg.145]    [Pg.349]    [Pg.253]    [Pg.253]    [Pg.29]    [Pg.223]    [Pg.6]    [Pg.39]    [Pg.373]    [Pg.51]    [Pg.234]    [Pg.317]   
See also in sourсe #XX -- [ Pg.128 ]



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Acidic supports

Phosphotungstate

Phosphotungstic acid

Silica support

Supported acids

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