Selective production of aromatics

Details Selective production of aromatics Selective production of aromatics

1980-04-28

1981-11-10

Davis, Curtis R.

Chemistry of hydrocarbon compounds

Aromatic compound synthesis

By condensation of entire molecules or entire hydrocarbyl...

585470, 585475, 585481, 585733, C07C 268, C07C 522

Patent

active

043000118

ABSTRACT:
Selective reactions of hydrocarbons and/or oxygenated hydrocarbons are conducted in the presence of catalysts comprising one or more zeolites characterized by a silica to alumina mole ratio of at least 12 and a constraint index in the approximate range of 1 to 12, said catalysts are contacted with bulky heterocyclic organic nitrogen compounds. Said nitrogen compounds have an effective critical dimension of greater than 6.2 Angstroms and a pKa of between about 3 and 9. The process of this invention is particularly useful in the production of dialkylbenzene derivatives low in the ortho-isomer.

REFERENCES:
patent: 4158676 (1979-06-01), Smith et al.

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