Process for preparing of aromatic hydrocarbons

Chemistry of hydrocarbon compounds – Aromatic compound synthesis – By ring formation from nonring moiety – e.g. – aromatization,...

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585407, 585416, 585417, 585418, C07C 200, C07C 600

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active

053211790

ABSTRACT:
A process for producing modified crystalline galloalumino silicate having the ZSM-5 crystal structure, and a process for producing aromatic hydrocarbons by the use of a catalyst containing the above modified crystalline galloalumino silicate are disclosed. The modified crystalline galloalumino silicate having the ZSM-5 type crystal structure is produced by calcining galloalumino silicate having the ZSM-5 type crystal structure as obtained by the hydrothermic reaction, at a temperature of 700 to 1,000.degree. C. The aromatic hydrocarbons are produced by contacting hydrocarbons having 2 to 12 carbon atoms with a catalyst containing the above modified crystalline galloalumino silicate.

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Kentgens et al, Chemical Physics Letters, "A .sup.69 Ga and .sup.71 Ga MAS NMR Study of the Gallium Analogue Zeolite ZSM-5", 176, 399-403 (1991).
Bayerse et al, J. Chem. Soc. Chem. Commun., "The Removal of Gallium from the Lattice of MFI-Gallosilicates as Studied by .sup.71 Ga M.A.S.-N.M.R. Spectroscopy", 1292-1293 (1989).

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