Apparatus for purifying carbon nanotubes
US9045345B2 · kind B2 · utility
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Key dates
| Filing date | Dec 12, 2011 |
| Grant date | Jun 2, 2015 |
| Priority date | — |
| Expiry date | Jul 9, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/847
- WIPO fieldMicro-structural and nano-technology
- WIPO sectorChemistry
Abstract
Provided is a continuous method and apparatus of purifying carbon nanotubes. The continuous method and apparatus of purifying carbon nanotubes is characterized in a first purifying step for injecting a carbon nanotube liquid mixture containing an oxidizer into a purifying reactor under a sub-critical water or supercritical water condition at a pressure of 50 to 400 atm and a temperature of 100 to 600° C. to obtain a purified product, thereby removing amorphous carbon and producing the carbon nanotube product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.