Oxidative dehydrogenation catalyst preparation
AssigneePhillips Petroleum Company
InventorsDarrell W. Walker, Floyd Farha, Jr.
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Abstract
In the precipitation of a tin-containing component and a phosphorus-containing component from an acid solution with a base to prepare a catalyst of improved selectivity to produce diolefin from corresponding mono-olefin there is used with the base, or thereafter, a water-soluble sulfide. The water-soluble sulfide can be at least one of an alkali-and an alkaline earth metal sulfide and ammonium sulfide.
Claims7
A process for the preparation of an oxidative dehydrogenation catalyst suited for conversion of mono-olefin to the diolefin without excessive conversion of hydrocarbon by complete oxidation, the catalyst having improved selectivity, which comprises precipitating together a tin-containing component with a phosphorus-containing component from an acid solution with a base such as ammonium hydroxide and introducing sulfide into the precipitated mass.
Dependencies are inferred from the claim text.