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:
Oct. 01, 2024
Filed:
Mar. 11, 2020
Applicant:
Chevron Oronite Company Llc, San Ramon, CA (US);
Inventor:
Eugene Edward Spala, Fairfield, CA (US);
Assignee:
CHEVRON ORONITE COMPANY LLC, San Ramon, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 319/28 (2006.01); B01D 3/40 (2006.01); C10M 135/06 (2006.01); C07C 323/20 (2006.01); C10N 10/04 (2006.01); C10N 30/04 (2006.01);
U.S. Cl.
CPC ...
C07C 319/28 (2013.01); B01D 3/40 (2013.01); C10M 135/06 (2013.01); C07C 323/20 (2013.01); C10M 2219/088 (2013.01); C10N 2010/04 (2013.01); C10N 2030/04 (2013.01);
Abstract
Disclosed herein is a process for preparing a sulfurized non-overbased calcium phenate detergent having a reduced content of un-sulfurized alkyl-substituted phenol and its salt. The process steps involve adding an organic solvent to the detergent, wherein the organic solvent has a boiling point of equal or above the boiling point of the un-sulfurized alkyl-substituted phenol. Distilling the organic solvent from the detergent to reduce the content of the un-sulfurized alkyl-substituted phenol.