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:
Feb. 16, 2021
Filed:
Jun. 01, 2017
Applicant:
Basf SE, Ludwigshafen am Rhein, DE;
Inventors:
Sunil Sadashiv Divekar, Pune, IN;
Pramod Shankar Kumbhar, Pune, IN;
Rahul Vasantrao Bagal, Pune, IN;
ShreekantUttam Satav, Pune, IN;
Assignee:
BASF SE, Ludwigshafen am Rhein, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 307/50 (2006.01); B01D 3/36 (2006.01);
U.S. Cl.
CPC ...
C07D 307/50 (2013.01); B01D 3/36 (2013.01);
Abstract
A method of treatment of an aqueous effluent stream obtained during production of furfural is disclosed. The aqueous effluent stream containing organic solvents, furfural, and water is subjected to azeotropic distillation to obtain a distillate stream and a treated effluent stream having lower BOD and COD values which can be further reduced by biomethanation.