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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.:

US 10954468 B1

PDFFull Text
Date of Patent:
Mar. 23, 2021

Filed:

Oct. 16, 2018

Method for regeneration of used lubricating oils

Applicant:

Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Shandong, CN;

Inventors:

Keng H. Chung, Shandong, CN;

Xuebing Li, Shandong, CN;

Song Chen, Shandong, CN;

Guangci Li, Shandong, CN;

Bin Chen, Shandong, CN;

Assignee:

Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Shandong, CN;

Attorneys:

Novick, Kim & Lee, PLLC

Allen Xue

Primary Examiner:

Ellen M Mcavoy

Assistant Examiner:

Chantel L Graham

Int. Cl.
CPC ...
C10M 175/00 (2006.01); B01J 23/28 (2006.01); B01J 23/30 (2006.01); B01J 23/06 (2006.01); B01J 23/745 (2006.01); B01J 23/75 (2006.01); B01J 23/755 (2006.01); B01J 29/06 (2006.01); B01J 21/08 (2006.01); B01J 21/04 (2006.01); C10M 175/02 (2006.01); C10N 30/20 (2006.01); C10N 40/04 (2006.01); C10N 40/08 (2006.01); C10N 40/12 (2006.01); C10N 40/25 (2006.01); C10N 60/04 (2006.01);
U.S. Cl.
CPC ...
C10M 175/0008 (2013.01); B01J 21/04 (2013.01); B01J 21/08 (2013.01); B01J 23/06 (2013.01); B01J 23/28 (2013.01); B01J 23/30 (2013.01); B01J 23/745 (2013.01); B01J 23/75 (2013.01); B01J 23/755 (2013.01); B01J 29/06 (2013.01); C10M 175/0016 (2013.01); C10M 175/0033 (2013.01); C10M 175/02 (2013.01); B01D 2251/104 (2013.01); B01D 2251/106 (2013.01); B01J 2523/69 (2013.01); B01J 2523/842 (2013.01); B01J 2523/845 (2013.01); B01J 2523/847 (2013.01); C10N 2030/20 (2013.01); C10N 2040/04 (2013.01); C10N 2040/08 (2013.01); C10N 2040/12 (2013.01); C10N 2040/25 (2013.01); C10N 2060/04 (2013.01);
Abstract

A method for the regeneration of used lubricating oils to produce lubricant base oils includes the steps of (a) removing resin and impurities by distillation, (b) catalytic oxidation treatment and (c) adsorption process. The method can efficiently reduce the color, metal ions, and sulfur content under mild reaction conditions at low cost and obtain high yield of regenerated oil above 85 wt. %.

Find Patent Forward Citations

Chung, Keng. (2021). Method for regeneration of used lubricating oils (U.S. Patent No. 10954468). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10954468

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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