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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.:

US 9186656 B1

PDFFull Text
Date of Patent:
Nov. 17, 2015

Filed:

Nov. 05, 2012

Catalyst composition for the synthesis of multi-walled carbon nanotubes

Applicants:

Sang Kyu Choi, Daejeon, KR;

Sang Hyo Ryu, Daejeon, KR;

Ho Soo Hwang, Suwon-si, KR;

Chung Heon Jeong, Daejeon, KR;

Dong Hoon OH, Daejeon, KR;

Yeon Ja Lee, Daejeon, KR;

Youngchan Jang, Daejeon, KR;

Inventors:

Sang Kyu Choi, Daejeon, KR;

Sang Hyo Ryu, Daejeon, KR;

Ho Soo Hwang, Suwon-si, KR;

Chung Heon Jeong, Daejeon, KR;

Dong Hoon Oh, Daejeon, KR;

Yeon Ja Lee, Daejeon, KR;

Youngchan Jang, Daejeon, KR;

Assignee:

KOREA KUMHO PETROCHEMICAL CO., LTD., Seoul, KR;

Attorney:

Kenyon & Kenyon LLP

Primary Examiner:

Cam N Nguyen

Int. Cl.
CPC ...
B01J 23/00 (2006.01); B01J 23/10 (2006.01); B01J 23/883 (2006.01); B01J 37/03 (2006.01); B01J 37/08 (2006.01); B01J 23/889 (2006.01); B01J 23/881 (2006.01); B01J 23/882 (2006.01); B01J 23/885 (2006.01); B01J 23/887 (2006.01); B01J 23/888 (2006.01); B01J 35/00 (2006.01); B01J 37/00 (2006.01); B82Y 40/00 (2011.01); C01B 31/02 (2006.01); B82Y 30/00 (2011.01);
U.S. Cl.
CPC ...
B01J 23/883 (2013.01); B01J 23/881 (2013.01); B01J 23/882 (2013.01); B01J 23/885 (2013.01); B01J 23/887 (2013.01); B01J 23/8875 (2013.01); B01J 23/8885 (2013.01); B01J 23/8892 (2013.01); B01J 23/8898 (2013.01); B01J 35/002 (2013.01); B01J 37/0054 (2013.01); B01J 37/031 (2013.01); B01J 37/082 (2013.01); B82Y 30/00 (2013.01); B82Y 40/00 (2013.01); C01B 31/0233 (2013.01); Y10T 428/2918 (2015.01);
Abstract

The present invention relates to a catalyst composition for the synthesis of multi-walled carbon nanotube having high apparent density in a manner of high yield. More particularly, this invention relates to a multi-component metal catalyst composition comprising i) main catalyst of Fe and Mo, ii) inactive support of Al and iii) optional co-catalyst at least one selected from Co, Ni, Ti, Mn, W, Sn or Cu. Further, the present invention affords multi-walled carbon nanotube having 5˜15 nm of fibrous diameter and 0.5˜4 μm bundle diameter.

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