Title:
CONTINUOUS PREPARATION SYSTEM AND PREPARATION METHOD FOR SINGLE-WALL CARBON NANOTUBES
Document Type and Number:
WIPO Patent Application WO/2022/062446
Kind Code:
A1
Abstract:
Provided are a continuous preparation system and a process method for single-wall carbon nanotubes, which belong to the technical field of new materials. The preparation system is formed by connecting a high-temperature reaction chamber (3) and a cooling unit (13) in series, and a vacuum, a gas circuit, a control, a cooling and a feeding system, etc. are used for providing assistance. According to the preparation method, by using the high temperature generated by a direct-current arc flame, a metal catalyst serving as a counter electrode is evaporated to form tiny catalyst particles; the tiny catalyst particles are rapidly combined with an organic carbon source from high temperature cracking to catalytically produce single-wall carbon nanotubes; same are cooled and then enter a gas-solid separator (9); the obtained single-wall carbon nanotubes are enriched and separated by means of a magnetic field; and finally, the gas-solid separator (9) is blown back using an inert gas to obtain the final product. According to the method, the catalyst is present in the form of ultrafine particles in a high-temperature growth state; the purity, the pipe diameter structure, etc. of the single-wall carbon nanotubes are truly and strictly regulated and controlled; and high-quality single-wall carbon nanotubes are continuously prepared. The device and the process are high in production efficiency and have an important industrialization value.
Inventors:
CHEN MINGHAI (CN)
LIANG CHEN (CN)
YUAN XINXIN (CN)
LIANG CHEN (CN)
YUAN XINXIN (CN)
Application Number:
PCT/CN2021/096289
Publication Date:
March 31, 2022
Filing Date:
May 27, 2021
Export Citation:
Assignee:
JIANGXI COPPER TECH RESEARCH INSTITUTE CO LTD (CN)
International Classes:
C01B32/164; C01B32/159; C01B32/162; B03C1/00
Foreign References:
| CN112250061A | 2021-01-22 | |||
| CN110217777A | 2019-09-10 | |||
| US8137653B1 | 2012-03-20 | |||
| CN101121511A | 2008-02-13 | |||
| CN1738767A | 2006-02-22 | |||
| CN103466592A | 2013-12-25 | |||
| CN101484383A | 2009-07-15 |
Attorney, Agent or Firm:
BEIJING JINZHIPUHUA INTELLECTUAL PROPERTY AGENCY CO.LTD (CN)
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