Isomerization of olefins utilizing heterogeneous dioxyzirconium catalysts
AssigneeThe Trustees of Princeton University
InventorsJeffrey Schwartz, Michael D. Ward
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Abstract
It has been found that catalysts comprising zirconium hydrides, hydride alkyls and dihydrides bonded to metal or metalloid oxides in particular zirconium hydride bonded to silica, when contacted with olefins under mild conditions rapidly cause isomerization to thermodynamic mixtures.
Claims7
A process for the isomerization of olefins selected from the group consisting of monounsaturated olefins and polyunsaturated olefins containing at least one nonconjugated double bond which comprises contacting said olefin in a substantially anhydrous, oxygen-free environment, with a catalyst of the formula ##STR2## wherein [M-oxide] is a support phase selected from the group of oxides of group II, group III, group IV, group V and group VI B metals, silica, and germania, R.sub.1 and R.sub.2 are hydrogen or alkyl and may be the same or different.
A process for the isomerization of olefins selected from the group consisting of monounsaturated olefins and polyunsaturated olefins containing at least one nonconjugated double bond which comprises contacting said olefin in a substantially anhydrous, oxygen-free environment, at a temperature between ambient temperature and 200.degree. C., with a catalyst of the formula ##STR3## wherein [M-oxide] is a support phase selected from the group of oxides of group II, group III, group IV, group V and group VI B metals, silica, and germania, R.sub.1 and R.sub.2 are hydrogen or alkyl and may be the same or different.
Dependencies are inferred from the claim text.