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US 4,400,576 AGranted
Catalyst preparation
AssigneeShell Oil Company
InventorGerrit J. den Otter
Life of this patent
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Abstract
Catalysts for the isomerization of n-paraffins are prepared by treating mordenite with an acid solution comprising Na- or K-ions and thereafter with a solution of an NH.sub.4 -compound, mixing the thus treated mordenite with an inert binder material on which a Group VIII noble metal has been deposited and finally shaping the resulting mixture under high pressure.
Claims11
A process for the isomerization of normal paraffins characterized in that normal paraffins are contacted, at elevated temperature and pressure and in the presence of hydrogen, with a catalyst prepared by:
- (a) treating mordenite with a solution prepared by incorporating potassium and/or sodium ions in an aqueous acid solution having a normality between 0.5 and 3.0, in an amount which, expressed in grams per liter, is at least ten times the normality of the aqueous acid solution;
- (b) treating the resulting mordenite with an aqueous solution of an ammonium compound, therein forming ammonium mordenite;
- (c) mixing said ammonium mordenite with an amorphous material consisting essentially of one or more oxides of metals of groups II, III and IV, on which amorphous material one or more noble metals of group VIII has been deposited;
- and
- (d) subjecting the resulting mixture to shaping under high pressure.
2 more elements
Dependencies are inferred from the claim text.