Double-bond isomerization process using basic zeolite catalysts

Details Double-bond isomerization process using basic zeolite catalysts Double-bond isomerization process using basic zeolite catalysts

1989-08-16

1991-02-12

Davis, Curtis R.

Chemistry of hydrocarbon compounds

Unsaturated compound synthesis

By double-bond-shift isomerization

C07C 523

Patent

active

049926136

ABSTRACT:
This invention relates to a process for the double bond isomerization of an olefin which comprises contacting said olefin with a catalyst comprising zeolite and an alkali(ne earth) metal compound wherein the sum of the amount of the alkali(ne earth) metal in the compound plus any metal cation exchanged into the zeolite is in excess of that required to provide a fully metal cation-exchanged zeolite.

REFERENCES:
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Martens et al., "Sodium Clusters in Large Pore Zeolites as Basic Catalysts".
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Martens et al., "Preparation and Catalytic Properties of Ionic Sodium Clusters in Zeolites", Nature, 315, 568-570 (1985).
Yoon et al., "Novel Synthesis of Ionic Clusters (Na.sub.4.sup.3 +) in Zeolites, " J. Chem. Soc., Chem. Commun., 510-511 (1988).
Harrison et al., "Ionic and Metallic clusters of the Alkali Metals in Zeolite Y," J. Solid State Chem., 54, 330-341 (1984).
Martens et al., "Sodium Clusters in Zeolites as Active Sites for Carbanion Catalyzed Reactions".
Englehardt et al., "Alkylation of Toluene with Methanol on Commercial X Zeolite in Different Alkali Cation Forms", J. Cat., 107, 196-306 (1987).
Hathaway et al., "Base Catalysis by Alkali-Modified Zeolite", J. Cat., 116,263-284 (1989).

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