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:
Aug. 24, 2021
Filed:
Dec. 22, 2017
Applicants:
Lg Chem, Ltd., Seoul, KR;
Sepratek Inc., Daejeon, KR;
Inventors:
Youna Kim, Daejeon, KR;
Dong Kwon Lee, Daejeon, KR;
Jeong Seok Lee, Daejeon, KR;
Kwang Hyon Kim, Daejeon, KR;
Choongkyun Yeom, Daejeon, KR;
Seok Ki Kang, Daejeon, KR;
Kyehoon Kim, Daejeon, KR;
Assignee:
LG CHEM, LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 61/36 (2006.01); B01D 69/10 (2006.01); B01D 71/26 (2006.01); B01D 71/36 (2006.01); C02F 1/44 (2006.01); C08G 64/40 (2006.01); B01D 69/02 (2006.01); C02F 1/04 (2006.01); C02F 101/32 (2006.01); C02F 101/36 (2006.01); C02F 103/38 (2006.01);
U.S. Cl.
CPC ...
C02F 1/447 (2013.01); B01D 61/364 (2013.01); B01D 69/02 (2013.01); B01D 69/10 (2013.01); B01D 71/26 (2013.01); B01D 71/36 (2013.01); C02F 1/04 (2013.01); C08G 64/406 (2013.01); B01D 2325/38 (2013.01); C02F 2101/32 (2013.01); C02F 2101/36 (2013.01); C02F 2103/38 (2013.01);
Abstract
The present disclosure relates to a method for treating a solvent in wastewater generated in a polycarbonate production process. More specifically, the present disclosure relates to a method for treating a solvent in wastewater generated in a polycarbonate production process, which can easily recover a high purity solvent regardless of the concentration of the solvent by using a membrane distillation method to reuse it, and contribute to energy savings.