CATALYST DEACTIVATION IN DECOMPOSITION OF p-SUBSTITUTED-t-BUTYLBENZENES OVER SILICA-ALUMINA CATALYST

1985 ◽  
Vol 34 (1-6) ◽  
pp. 363-374 ◽  
Author(s):  
TAKESHIGE TAKAHASHI ◽  
MCHIAKI NOMURA ◽  
MASASHI TASHIRO
Keyword(s):  
Catalyst Deactivation ◽  
Alumina Catalyst ◽  
Silica Alumina

scholarly journals Selective synthesis of thioethers in the presence of a transition-metal-free solid Lewis acid

2016 ◽  
Vol 12 ◽  
pp. 2627-2635 ◽  
Author(s):  
Federica Santoro ◽  
Matteo Mariani ◽  
Federica Zaccheria ◽  
Rinaldo Psaro ◽  
Nicoletta Ravasio
Keyword(s):  
Reaction Rate ◽  
Solid Acid ◽  
Amorphous Solid ◽  
Solid Acid Catalysts ◽  
Acid Catalysts ◽  
Alumina Catalyst ◽  
Reaction Conditions ◽  
Solvent Free Conditions ◽  
Wide Range ◽  
Silica Alumina

The synthesis of thioethers starting from alcohols and thiols in the presence of amorphous solid acid catalysts is reported. A silica alumina catalyst with a very low content in alumina gave excellent results in terms of both activity and selectivity also under solvent-free conditions. The reaction rate follows the electron density of the carbinol atom in the substrate alcohol and yields up to 99% and can be obtained for a wide range of substrates under mild reaction conditions.

scholarly journals The Formation of High-boiling By-products in the Isomerization and Disproportionation ofm-Xylene over a Silica-alumina Catalyst under Pressure

1972 ◽  
Vol 45 (8) ◽  
pp. 2337-2343 ◽  
Author(s):  
Haruo Takaya ◽  
Naoyuki Todo ◽  
Tadasuke Hosoya ◽  
Hideki Oshio ◽  
Toshio Minegishi
Keyword(s):  
Alumina Catalyst ◽  
Silica Alumina ◽  
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