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:
Jan. 01, 1980
Filed:
May. 01, 1978
Tsoung-Yuan Yan, Philadelphia, PA (US);
Robert F Bridger, Hopewell, NJ (US);
Mobil Oil Corporation, New York, NY (US);
Abstract
A process is provided for improving the stability of a hydrocarbon mineral oil, particularly a hydrocracked stock, normally susceptible to thermal oxidation and the effect of light rays and for decreasing the tendency of the oil to form sludge material. The process involves reacting the hydrocarbon mineral oil before or after conventional treatment, such as dewaxing operations, with a stabilizing agent, such as an olefin, alcohol, ester or alkyl halide in the presence of a heterogeneous acidic catalyst which includes acid resins, clays and aluminosilicates, and which has a controlled alkylation activity. The final oil product has improved light stability over a conventionally treated oil.