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. 09, 2011
Filed:
Apr. 18, 2008
Applicants:
Fei Wei, Beijing, CN;
Yi Liu, Beijing, CN;
Weizhong Qian, Beijing, CN;
Guohua Luo, Beijing, CN;
Inventors:
Assignee:
Tsinghua University, Beijing, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 8/18 (2006.01); D01F 9/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present application provides multistage and multilayer reactors useful for the efficient and continuous production of carbon nanotubes and methods of using the apparatus in the preparation of carbon nanotubes. In one aspect, the multistage reactors include an array of interconnected fluidized-bed reactors. The multilayer reactors include a plurality of reaction zones.