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:
Dec. 13, 2022
Filed:
Mar. 02, 2018
Applicant:
Korea Kumho Petrochemical Co., Ltd., Seoul, KR;
Inventors:
Sang Hyo Ryu, Seoul, KR;
Hyun Kyung Sung, Daejeon, KR;
Chung Heon Jeong, Daejeon, KR;
Dong Hwan Kim, Daejeon, KR;
Assignee:
KOREA KUMHO PETROCHEMICAL CO., LTD., Seoul, KR;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J 35/08 (2006.01); B01J 23/78 (2006.01); B01J 23/881 (2006.01); B01J 23/847 (2006.01); B01J 23/882 (2006.01); B01J 23/888 (2006.01); B01J 35/00 (2006.01); B01J 37/10 (2006.01); C01B 32/162 (2017.01);
U.S. Cl.
CPC ...
B01J 23/78 (2013.01); B01J 23/8472 (2013.01); B01J 23/881 (2013.01); B01J 23/882 (2013.01); B01J 23/888 (2013.01); B01J 35/008 (2013.01); B01J 35/0026 (2013.01); B01J 35/08 (2013.01); B01J 37/105 (2013.01); C01B 32/162 (2017.08); C01B 2202/06 (2013.01); C01B 2202/34 (2013.01); C01B 2202/36 (2013.01); C01P 2002/74 (2013.01); C01P 2006/10 (2013.01);
Abstract
Provided is a catalyst for manufacturing multi-wall carbon nanotubes, the catalyst including metal components according to <Equation> Ma:Mb=x:y, and having a hollow structure with a thickness of 0.5-10 μm. In the above equation, Ma represents at least two metals selected from Fe, Ni, Co, Mn, Cr, Mo, V, W, Sn, and Cu; Mb represents at least one metal selected from Mg, Al, Si, and Zr; x and y each represent the molar ratio of Ma and Mb; and x+y=10, 2.0≤x≤7.5, and 2.5≤y≤8.0.