ISSN:
1572-879X
Keywords:
amorphous microporous mixed oxides
;
AMM
;
In-silica catalyst
;
selective oxidation with air
;
oxidative propene coupling
;
1,5-hexadiene
;
heterogeneous catalyst
;
gas phase oxidation
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract 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%.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1019015018454
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