Patent ID: 7399896

Claim:
A process for the isomerization of a paraffinic feedstock to obtain a product having an increased isoparaffin content comprising contacting the paraffinic feedstock in an isomerization zone maintained at isomerization conditions comprising a temperature from about 25° C. to about 300° C., a pressure from about 100 kPa to about 10 Mpa and liquid hourly space velocity from about 0.2 to about 15 hr −1 with a solid acid isomerization catalyst, consisting essentially of support comprising a tungstated oxide or hydroxide of at least one of the elements of Group IVB (IUPAC 4) of the Periodic Table; a first component comprising a phosphorous component; and a second component comprising at least one platinum-group metal component selected from the group consisting of platinum, palladium, ruthenium, rhodium, iridium, osmium and mixtures thereof, wherein the catalyst has a structure other than a heteropoly anion structure, and recovering an isoparaffm-rich product.