Process for alkylating toluene with methanol to form styrene usi

Details Process for alkylating toluene with methanol to form styrene usi Process for alkylating toluene with methanol to form styrene usi

1983-04-22

1984-07-31

Gantz, Delbert E.

Chemistry of hydrocarbon compounds

Aromatic compound synthesis

Having alkenyl moiety, e.g., styrene, etc.

585438, C07C 120

Patent

active

044632045

ABSTRACT:
A process for alkylating toluene (or derivative thereof) with methanol to form e.g. styrene and ethylbenzene (or derivatives thereof) using a modified low sodium content zeolite catalyst composition is disclosed. The zeolite catalyst composition is exemplified by a type X- or Y-zeolite modified with potassium and cesium through a sequential exchange.

REFERENCES:
patent: 2882244 (1959-04-01), Milten
patent: 4140726 (1979-02-01), Unland et al.
Article "The Ion-Exchange Properties of Zeolites, I. Univalent Ion Exchange in Synthetic Faujasite," Howard S. Sherry-J. of Physical Chemistry, vol. 70, pp. 1158-1168 (1966).
Itoh et al., report "Experimental Evidence for the Role of Acidic Sites in the Side-Chain Alkylation of Alkylbenzenes with Methanol, pp. 170-171 of Journal of Catalysis, vol. 72.
Article "Condensation of Toluene and Methanol on Synthetic Zeolites Exchanged with Alkali Ions," Dokl Akad Nauk SSSR, vol. 173, No. l:132-134.
Article "Alkylation on Synthetic Zeolites," T. Yashima et al.-Journal of Catalysis, vol. 26, 303-312 (1972).
Sodesawa et al., "A Study of Catalysis by Metal Phosphates V. the Alkylation of Toluene with Methanol over Metal Phosphate Catalysis," Bulletin of the Chemical Society of Japan, vol. 52(8), pp. 2431-2432 (1979).

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