Process to make technical white oils
AssigneeSuntech, Inc.
InventorWilliam W. Wentzheimer
Life of this patent
Estimating the term…
Abstract
A process for making technical white oils in a single step hydrogenation and without the need for acid treating to meet white oil specification by hydrogenating a hydrocracked solvent extracted lubricating oil distilling between 650.degree. and 1050.degree. F., having a SUS/100.degree. F. viscosity of about 200 and an aromatic content of less than about 15% in a single step at 600.degree. to 700.degree. F., and at 2000 to 3000 psig in the presence of a catalyst comprising nickel and tungsten supported on silica-alumina, subjecting the hydrogenated solvent extracted lube oil to atmospheric distillation to remove distillates useful as fuels and subjecting the bottoms of said atmospheric distillation to a vacuum distillation to yield various viscosity grades of technical white oils.
Claims3
A process for making technical white oils in a single hydrogenation and without the need for acid treating to meet white oil specifications which comprises hydrogenating a hydrocracked solvent extracted lubricating oil distilling at 650.degree. to 1050.degree. F, having a SUS/100.degree. F viscosity of about 200 and an aromatic content of less than about 15% in a single step at 600.degree. to 700.degree. F, and at 2000 to 3000 psig in the presence of a catalyst comprising nickel and tungsten supported on silica-alumina, subjecting the hydrogenated solvent lube oil to atmospheric distillation to remove distillates useful as fuels and subjecting the bottoms of said atmospheric distillation to a vacuum distillation to yield technical white oils as products.
Dependencies are inferred from the claim text.