Alkylation of dihydroxybenzenes and anisole with methyl-tert-butyl ether (MTBE) over solid acid catalysts

2001 ◽  
Vol 3 (2) ◽  
pp. 92-99 ◽  
Author(s):  
G. D. Yadav ◽  
P. K. Goel ◽  
A. V. Joshi
Keyword(s):  
Solid Acid ◽  
Solid Acid Catalysts ◽  
Methyl Tert Butyl Ether ◽  
Acid Catalysts ◽  
Butyl Ether ◽  
Tert Butyl

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.

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