Methylation of biphenyl over zeolite HZSM-5 in gas phase with methanol in presence of water: effect of the catalyst impregnation by tetraethyl orthosilicate

The gas phase methylation of biphenyl with MeOH over HZSM-5 and HZSM-5 modified with Si(OEt)4 was investigated at atm. pressure in the presence of water. The modification of the outer surface of the catalyst pellets by silicate gives increased selectivity to 4,4'-dimethylbiphenyl. Modified HZSM-5 gave 75% selectivity to 4-methylbiphenyl. [on SciFinder (R)]


Published in:
Reaction Kinetics and the Development of Catalytic Processes, 359-366
Year:
1999
Publisher:
Amsterdam, Elsevier
Keywords:
Note:
CAN 131:117701 45-4 Industrial Organic Chemicals, Leather, Fats, and Waxes Institute of Chemical Engineering,Swiss Federal Institute of Technology,Lausanne,Switz. Journal 0167-2991 written in English. 92-52-4 (Biphenyl) Role: RCT (Reactant), RACT (Reactant or reagent) (effect of HZSM-5 catalyst modification with Si(OEt)4 on selective MeOH methylation of biphenyl); 78-10-4 (Tetraethyl silicate) Role: CAT (Catalyst use), USES (Uses) (effect of HZSM-5 catalyst modification with Si(OEt)4 on selective MeOH methylation of biphenyl to); 613-33-2P (4,4'-Dimethylbiphenyl); 644-08-6P (4-Methylbiphenyl) Role: IMF (Industrial manufacture), PREP (Preparation) (effect of HZSM-5 catalyst modification with Si(OEt)4 on selective MeOH methylation of biphenyl to)
Laboratories:




 Record created 2006-04-18, last modified 2018-01-27


Rate this document:

Rate this document:
1
2
3
 
(Not yet reviewed)