Methylation of toluene to para-xylene

Details Methylation of toluene to para-xylene Methylation of toluene to para-xylene

1997-05-29

1999-11-30

Griffin, Walter D.

Chemistry of hydrocarbon compounds

Aromatic compound synthesis

By condensation of entire molecules or entire hydrocarbyl...

585454, 502 67, C07C 268, C07C 100, B01J 2906

Patent

active

059946032

ABSTRACT:
A process is provided for the production of paraxylene by the methylation of toluene in the presence of a zeolite bound zeolite catalyst. The catalyst comprises first zeolite crystals which are bound together by second zeolite crystals. When used to methylate toluene to para-xylene, the zeolite bound zeolite catalyst has a para-xylene selectivity greater than thermodynamic equilibrium. This selectivity can be enhanced by selectivating the catalyst.

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"MFI"; internet search document; pp. 1-3, Jun. 1998.
"MEL"; internet serach document; pp. 1-3, Jun. 1998.

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