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

Dubuis, S.Doepper, R.Renken, A.2006-04-182006-04-182006-04-18199910.1016/S0167-2991(99)80167-0https://infoscience.epfl.ch/handle/20.500.14299/229451WOS:000081204500040The 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)]Methylation catalysts (effect of HZSM-5 catalyst modification with Si(OEt)4 on selective MeOH methylation of biphenyl to)Zeolite HZSM-5 Role: CAT (Catalyst use)USES (Uses) (effect of HZSM-5 catalyst modification with Si(OEt)4 on selective MeOH methybiphenyl methylation methanol zeolite catalystmethylbiphenyl prepn methylation zeolite catalystethyl silicate modified zeolite methylation catalystMethylation of biphenyl over zeolite HZSM-5 in gas phase with methanol in presence of water: effect of the catalyst impregnation by tetraethyl orthosilicatetext::book/monograph::book part or chapter