Process to make white oil from waxy feed using highly selective and active wax hydroisomerization catalyst

A process for producing one or more medicinal grade 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 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;
• 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 technical grade white oils from the hydroisomerization dewaxing step, wherein
• i. the yield of the one or more technical grade 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 technical grade white oils produced have a pour point less than zero degrees C. and a Saybolt color of +20 or greater;
• and
• c. hydrofinishing the one or more technical grade white oils at conditions sufficient to produce one or more medicinal grade white oils that pass the RCS test.

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
• 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, a Saybolt color of +20 or greater, and a viscosity index greater than an amount calculated by the equation:
• Viscosity Index=28×Ln(Kinematic Viscosity at 100° C.)+95.

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 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;
• and
• ii. wherein the waxy feed has greater than 40 weight percent n-paraffins and a weight ratio of molecules having at least 60 or more carbon atoms and molecules having at least 30 carbon atoms less than 0.05;
• and
• b. collecting one or more white oils from the hydroisomerization dewaxing step, wherein the one or more white oils produced have a viscosity index greater than an amount calculated by the equation:
• Viscosity Index=28×Ln(Kinematic Viscosity at 100° C.)+95.

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;
• 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., a Saybolt color of +20 or greater, and a viscosity index greater than an amount calculated by the equation:
• Viscosity Index=28×Ln(Kinematic Viscosity at 100° C.)+95.