US 11,738,325 B2
Oil absorbent, method for manufacturing the same, and method for removing oil from aqueous phase using the same
Kyu Bock Lee, Daejeon (KR); Jae-Hak Choi, Daejeon (KR); Bon-Jun Ku, Daegu (KR); Byoung-Min Lee, Anyang-si (KR); Wang Lai Yoon, Daejeon (KR); and Dong Joo Seo, Daejeon (KR)
Assigned to THE INDUSTRY & ACADEMIC COOPERATION IN CHUNGNAM NATIONAL UNIVERSITY (IAC), Daejeon (KR); and KOREA INSTITUTE OF ENERGY RESEARCH, Daejeon (KR)
Filed by THE INDUSTRY & ACADEMIC COOPERATION IN CHUNGNAM NATIONAL UNIVERSITY (IAC), Daejeon (KR); and KOREA INSTITUTE OF ENERGY RESEARCH, Daejeon (KR)
Filed on Aug. 25, 2021, as Appl. No. 17/445,920.
Claims priority of application No. 10-2020-0106902 (KR), filed on Aug. 25, 2020.
Prior Publication US 2022/0062854 A1, Mar. 3, 2022
Int. Cl. B01J 20/20 (2006.01); B01J 20/28 (2006.01); B01J 20/30 (2006.01); C09K 3/32 (2006.01); C02F 1/28 (2023.01); C02F 101/32 (2006.01)
CPC B01J 20/20 (2013.01) [B01J 20/2808 (2013.01); B01J 20/28033 (2013.01); B01J 20/28083 (2013.01); B01J 20/28085 (2013.01); B01J 20/28092 (2013.01); B01J 20/3078 (2013.01); C02F 1/283 (2013.01); C09K 3/32 (2013.01); C02F 2101/32 (2013.01); C02F 2303/16 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A method for manufacturing an oil adsorbent, comprising: performing heat treatment on a non-woven fabric for carbonization in an air atmosphere,
wherein the carbonization is performed at 200 to 400° C.,
wherein the oil adsorbent has micropores of less than 2 nm, mesopores of 2 to 50 nm, and macropores of 50 nm or more.