Method for preparing a modified solid oxide
AssigneeMobil Oil Corporation
InventorsClarence D. Chang, Frank T. DiGuiseppi, Scott Han, Jose G. Santiesteban, David L. Stern
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Abstract
There is provided a method for preparing an acidic solid comprising a Group IVB metal oxide modified with an oxyanion of a Group VIB metal. An example of this acidic solid is zirconia, modified with tungstate. This modified solid oxide may be used as a catalyst, for example, to isomerize C.sub.4 to C.sub.8 paraffins. The modified solid oxide is treated with hydrogen at elevated temperatures to enhance catalytic properties of the material.
Claims21
A method for preparing an acidic solid catalyst comprising a Group IVB metal oxide modified with an oxyanion of a Group VIB metal, said method comprising the steps of:
- (a) contacting a hydroxide or hydrated oxide of a Group IVB metal with an aqueous solution comprising an oxyanion of a Group VIB metal under conditions sufficient to form a solid material comprising oxygen, Group IVB metal and Group VIB metal;
- and
- (b) contacting said solid material of step (a) with H.sub.2 to obtain said acidic solid catalyst.
A method for preparing a catalyst comprising (i) a hydrogenation/dehydrogenation component comprising a noble metal and (ii) an acidic solid component comprising a Group IVB metal oxide modified with an oxyanion of a Group VIB metal, said method comprising the steps of:
- (a) contacting a hydroxide or hydrated oxide of a Group IVB metal with an aqueous solution comprising an oxyanion of a Group VIB metal under conditions sufficient to form a solid material comprising oxygen, Group IVB metal and Group VIB metal;
- (b) combining said solid material of step (a) with a noble metal;
- and
- (c) contacting said solid material of step (b) with H.sub.2 to obtain said acidic solid catalyst.
Dependencies are inferred from the claim text.