Method for selective dealkylation of 1,4-dialkylbenzene

Details Method for selective dealkylation of 1,4-dialkylbenzene Method for selective dealkylation of 1,4-dialkylbenzene

1985-10-17

1987-03-31

Davis, Curtis R.

Chemistry of hydrocarbon compounds

Aromatic compound synthesis

By dealkylation

585489, C07C 412

Patent

active

046544577

ABSTRACT:
A method for selectively dealkylating a 1,4-dialkylbenzene in a dialkylbenzene mixture is disclosed, comprising contacting the mixture with a zeolite catalyst which is prepared by the steps of: (1) hydrothermally synthesizing a zeolite from a system in which an alkali metal cation and an organic cation or its precursor coexist and then calcining the zeolite; and (2) modifying the zeolite with a metal or metalloid oxide. This method permits selective dealkylation of a 1,4-dialkylbenzene while maintaining the yield and purity of olefins formed during the dealkylation at high levels.

REFERENCES:
patent: 4181811 (1980-01-01), Young
patent: 4205189 (1980-05-01), Young et al.
patent: 4499321 (1985-02-01), Sato et al.

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