Process for the isomerization of dimethylnaphthalenes

Details Process for the isomerization of dimethylnaphthalenes Process for the isomerization of dimethylnaphthalenes

1987-12-28

1988-10-11

Davis, Curtis R.

Chemistry of hydrocarbon compounds

Aromatic compound synthesis

By isomerization

585482, C07C 522

Patent

active

047773120

ABSTRACT:
Superior isomerization performance is obtained in an isomerization process employing a catalytic composition comprising a Group VIII noble metal and a hydrogen form mordenite incorporated with alumina. The superior isomerization performance is achieved using a catalyst composition having a surface area of at least 580 m.sup.2 /g. A novel method of preparing an isomerization catalyst having a surface area of at least 580 m.sup.2 /g is characterized by contacting a formed catalytic composite with an acidic aqueous solution prior to addition of the Group VIII noble metal. The isomerization process is particularly useful in the isomerization of a dimethylnaphthalene containing feedstock into a product that contains a higher concentration of the 2,6-dimethylnaphthalene isomer than did the feedstock.

REFERENCES:
patent: 3890403 (1975-06-01), Shimada et al.

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