scholarly journals THE ENHANCEMENT OF ACID STRENGTH AND CATALYTIC ACTIVITY OF SnO2BY THE ADDITION OF SULFATE ION

1983 ◽  
Vol 12 (3) ◽  
pp. 277-280 ◽  
Author(s):  
Gong-Wei Wang ◽  
Hideshi Hattori ◽  
Kozo Tanabe
Keyword(s):  
Catalytic Activity ◽  
Acid Strength ◽  
Sulfate Ion

Preparation of Strong Acid Catalysts by Sulfate Treatment of Calcined Boehmite

1992 ◽  
Vol 57 (11) ◽  
pp. 2241-2247 ◽  
Author(s):  
Tomáš Hochmann ◽  
Karel Setínek
Keyword(s):  
Catalytic Activity ◽  
Surface Area ◽  
Aluminum Sulfate ◽  
Solid Acid ◽  
Strong Acid ◽  
Acid Strength ◽  
Solid Acid Catalysts ◽  
Acid Catalysts ◽  
Preparation Methods ◽  
Indicator Method

Solid acid catalysts with acid strength of -14.52 < H0 < -8.2 were prepared by sulfate treatment of the samples of boehmite calcined at 105-800 °C. Two preparation methods were used: impregnation of the calcined boehmite with 3.5 M H2SO4 or mixing of the boehmite samples with anhydrous aluminum sulfate, in both cases followed by calcination in nitrogen at 650 °C. The catalysts were characterized by measurements of surface area, adsorption of pyridine and benzene, acid strength measurements by the indicator method and by catalytic activity tests in the isomerization of cyclohexene, p-xylene and n-hexane. Properties of the catalysts prepared by both methods were comparable.

Acid Strength of Heteropolyacids and Its Correlation with Catalytic Activity

1994 ◽  
Vol 67 (4) ◽  
pp. 1186-1188 ◽  
Author(s):  
Toshio Okuhara ◽  
Changwen Hu ◽  
Masato Hashimoto ◽  
Makoto Misono
Keyword(s):  
Catalytic Activity ◽  
Acid Strength
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