Patent ID: 7402236

Claim:
A process for producing one or more white oils, comprising: a. hydroisomerization dewaxing a waxy feed over a highly selective and active wax hydroisomerization catalyst under conditions sufficient to produce a white oil; i. wherein the highly selective and active wax hydroisomerization catalyst has: 1). a 1-D 10-ring molecular sieve having channels with a minimum crystallographic free diameter of not less than 3.9 Angstrom and a maximum crystallographic free diameter of not more than 6.0 Angstrom, and no channels with a maximum crystallographic free diameter greater than 6.0 Angstrom; 2). a noble metal hydrogenation component; and 3) a refractory oxide support; and ii. wherein the waxy feed has: 1). a T90 boiling point greater than 490 degrees C. (915 degrees F.); 2). greater than 40 weight percent n-paraffins; and 3). less than 25 ppm total combined nitrogen and sulfur; and iii. wherein the hydroisomerization dewaxing is done directly on the waxy feed, without a separate hydrocracking step; and b. collecting one or more white oils from the hydroisomerization dewaxing step, wherein i. the yield of the one or more white oils boiling from 343 degrees C. and above (650° F.+) is greater than 25 weight percent of the waxy feed; and ii. the one or more white oils produced have a pour point less than zero degrees C. and a Saybolt color of +20 or greater.