AMM-InxSi, a microporous catalyst for the oxidative dimerization of propene with air

Amorphous microporous mixed oxides of indium and silicon (AMM-InxSi) have been prepared by our acid-catalyzed sol-gel method. The materials are amorphous with a narrow pore-size distribution with pore widths around 0.7 nm, a surface area about 500-800 m2 g-1 (BET) and contain homogeneously distribut...

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Bibliographic Details
Published in:Catalysis letters 1998-01, Vol.50 (1-2), p.93-105
Main Authors: BUKEIKHANOVA, S, ORZESEK, H, KOLB, U, KÜHLEIN, K, MAIER, W. F
Format: Article
Language:English
Subjects:
Amorphous materials
Catalysis
Catalysts
Catalysts: preparations and properties
Chemistry
Dimerization
Exact sciences and technology
General and physical chemistry
Hexadiene
Mixed oxides
Selectivity
Silicon
Size distribution
Sol-gel processes
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
Vapor phases
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Summary:Amorphous microporous mixed oxides of indium and silicon (AMM-InxSi) have been prepared by our acid-catalyzed sol-gel method. The materials are amorphous with a narrow pore-size distribution with pore widths around 0.7 nm, a surface area about 500-800 m2 g-1 (BET) and contain homogeneously distributed In-centers in the silicon matrix (XRD, TEM, EXAFS). These materials have been found to be excellent catalysts for the oxidative dimerization of propene with air to 1,5-hexadiene with high selectivity. The best reaction conditions found are gas phase, normal pressure at 550-600°C. Propene conversion has reached 10% with selectivities >80%.
ISSN:1011-372X
1572-879X
DOI:10.1023/A:1019015018454