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:
Nov. 14, 1978
Filed:
Sep. 02, 1977
Applicant:
Inventors:
James A Brennan, Cherry Hill, NJ (US);
Stanley J Lucki, Runnemede, NJ (US);
Assignee:
Mobil Oil Corporation, New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
C10G / ;
U.S. Cl.
CPC ...
2082 / ; 208297 ; 208299 ;
Abstract
Hydrocarbon lubricating oils are upgraded by removing polar compounds contained therein and improving the oxidation stability thereof using an acidified sorbent, such as alumina, silica-alumina or bauxite treated with anhydrous HCl, anhydrous HBr, aqueous (NH.sub.4).sub.2 SO.sub.4 or H.sub.2 SO.sub.4. The acidified sorbent contains at least 3%, by weight of the acidified sorbent, of Cl.sup.-, Br.sup.- or SO.sub.4 .sup.= ions. The process of upgrading the lube oils is carried out at a temperature ranging from ambient to about 250.degree. F and LHSV of 0.1 - 10.