Chemistry of inorganic compounds – Zeolite
Patent
1989-05-22
1993-03-16
Straub, Gary P.
Chemistry of inorganic compounds
Zeolite
423716, C01B 3334
Patent
active
051942445
ABSTRACT:
This invention relates to basic compositions comprising a zeolite and an alkali metal compound wherein the sum of the amount of the alkali 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. This invention further relates to methods for preparing the instant compositions. In a preferred embodiment the instant compositions are prepared by impregnating a zeolite with a solution of an alkali metal salt wherein said alkali metal impregnated in the zeolite is in excess of that required to exchange out the ion exchangable sites present in the zeolite, drying the resultant impregnated material and then calcining the resultant composition.
REFERENCES:
patent: 3013986 (1961-12-01), Castor
patent: 4140726 (1979-02-01), Unland et al.
patent: 4822825 (1989-04-01), Bhattacharya et al.
Hathaway et al., "Base Catalysis by Alkali-Modified Zeolites", J. Cat., 116, 263-284 (1989).
Barthomeuf et al., "Basicity and Basic Properties of Zeolites", Materials Chemistry and Physics, 18 (1988) 553-575.
Martens et al., "Sodium Clusters in Large Pore Zeolites as Basic Catalysts", 1988.
Rabo et al., "Studies of Cations in Zeolites", 1966.
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, Feb. 1984.
Martens et al., "Sodium Clusters in Zeolites as Active Sites for Carbanion Catalyzed Reactions", 1986.
Engelhardt et al., "Alkylation of Toluene with Methanol on Commercial X Zeolite in Different Alkali Cation Forms", J. Cat., 107, 296-306, 1987.
Brownscombe Thomas F.
Slaugh Lynn H.
Hendrickson Stuart L.
Shell Oil Company
Straub Gary P.
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