Alkane metathesis catalyst, methods of use and the preparation thereof
AssigneeKing Abdullah University of Science and Technology
InventorsJean-Marie Maurince Basset, Emmanuel Callens, Nassima Riache, Manoja Kumar Samantaray, Edy Abou-Hamad
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Abstract
The invention concerns an alkane metathesis catalyst, its production and use. The catalyst comprises a Group V, VI or VII metal alkyl with the metal in its highest oxidation state, preferably Ta or W, and the alkyl of C1-C4, preferably together with alkylidene and/or alkylidyne ligands, in particular -Me, ═CH2 and ≡CH, on a metal oxide support, preferably silica partially dehydroxylated at 200 or 700° C. Substrates include cycloalkanes, preferably cyclooctane.
Claims24
A catalyst comprising an oxide support and a supported metal alkyl species bound to the oxide support, wherein the supported metal alkyl species is a group V, VI or a group VII metal in its highest oxidation state and the alkyl group is a C1-C4 alkyl.
(canceled)
(canceled)
A method of preparing a catalyst comprising dehydroxylating a first material that includes an oxide in a heated environment and grafting the dehydroxylated first material with a second material that includes a moiety having a formula of MRx in an inert atmosphere, wherein M is a group V or a group VI metal in its highest oxidation state, R is a C1-C4 alkyl group, and x is an integer.
-22. (canceled)
A method of converting an alkane into higher and lower homologues comprising contacting a lower alkane or higher alkane with a catalyst comprising an oxide support and a supported metal alkyl species bound to the oxide support, wherein the supported metal alkyl species is a group V, VI or VII metal in its highest oxidation state and the alkyl group is a C1-C4 alkyl.
-42. (canceled)
Dependencies are inferred from the claim text.