Para-selective zeolite catalysts treated with carbon dioxide

Details Para-selective zeolite catalysts treated with carbon dioxide Para-selective zeolite catalysts treated with carbon dioxide

1981-06-26

1983-01-04

Davis, Curtis R.

Chemistry of hydrocarbon compounds

Aromatic compound synthesis

By condensation of entire molecules or entire hydrocarbyl...

585475, C07C 268

Patent

active

043673597

ABSTRACT:
A process is provided for modifying ZSM-5 type zeolite catalysts with carbon dioxide treating agent in order to enhance the para-selective properties of such catalysts for the conversion of aromatic materials to dialkyl-substituted benzene compounds. Catalyst compositions so treated can be used in alkylation, transalkylation or disproportionation processes to provide product mixtures having exceptionally high concentrations of the para-dialkylbenzene isomer.

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