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:
Apr. 11, 2023
Filed:
Aug. 25, 2021
Indian Oil Corporation Limited, Maharashtra, IN;
Department of Biotechnology, New Delhi, IN;
Alok Satlewal, Faridabad, IN;
Ruchi Agrawal, Faridabad, IN;
Ravindra Kumar, Faridabad, IN;
Ravi Prakash Gupta, Faridabad, IN;
Suresh Kumar Puri, Faridabad, IN;
Deepak Saxena, Faridabad, IN;
Sankara Sri Venkata Ramakumar, Faridabad, IN;
INDIAN OIL CORPORATION LIMITED, Mumbai, IN;
DEPARTMENT OF BIOTECHNOLOGY, New Delhi, IN;
Abstract
An integrated approach for utilizing waste products of 2G bio-refineries to fractionate the lignin of high purity. The present invention also provides a method of recycling of two waste products (2-G ethanol residue as the substrate (LRBR) and fusel oil/synthetic fusel oil (SFO) as one of the solvent) of the biorefineries in a beneficial manner to fractionate the lignin of high purity. The present method of separating high purity lignin comprises fractioning extractive-free lignin rich residue with a solvent, wherein the solvent is a mixture of SFO/Fusel oil and Formic acid. An optimized ratio of waste fusel oil and formic acid gave more than >85% yields of high purity lignin.