The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 11, 1978
Filed:
Dec. 27, 1976
Ronald W Reynolds, Wilmington, DE (US);
Sun Oil Company of Pennsylvania, Philadelphia, PA (US);
Abstract
A process for making naphthenic type lubricating oils from a low VI waxy crude which comprises distilling said low VI waxy crude to 500.degree. to 650.degree. F at atmospheric pressure to separate distillable fractions therefrom, subjecting the residue to a vacuum distillation at about 25 to about 125 mm Hg absolute pressure to obtain one or more gas oil fractions, optionally hydrotreating said gas oil fractions in the presence of a Ni/Mo catalyst at 550.degree. to 650.degree. F, 0.25 to 1.0 LHSV, and 700-1500 psig, and catalytically dewaxing said distillates in the presence of a H.sup.+ form mordenite catalyst containing a Group VI or Group VIII metal at 550.degree. to 750.degree. F, 500 to 1500 psig and 0.25 to 5.0 LHSV, to obtain said naphthenic type oils having pour points to from about -60.degree. to +20.degree. F.