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:
Dec. 09, 1980
Filed:
Jul. 06, 1978
Applicant:
Inventors:
John Mooi, Homewood, IL (US);
James P Gallagher, Park Forest, IL (US);
Assignee:
Atlantic Richfield Company, Philadelphia, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10G / ;
U.S. Cl.
CPC ...
208 58 ; 208111 ; 252465 ; 252470 ;
Abstract
A high viscosity index mineral lubricating oil is produced by processing a heavy hydrocarbon feedstock, e.g., a deasphalted residiuum in two (2) catalytic steps. The feedstock is first catalytically hydrocracked, hydrotreated then catalytically hydrogenated and can be fractionated and dewaxed to provide a finished product. Improved step (1) catalysts comprise at least one Group VIB metal, Group VIII metal and mixtures thereof on a support involving both silica-alumina and alumina.