Apparatus and method for continuous preparation of carbon nanotubes
US10500594B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 31, 2015 |
| Grant date | Dec 10, 2019 |
| Priority date | — |
| Expiry date | Mar 29, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB03C1/30
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The disclosure discloses an apparatus for continuous preparation of carbon nanotubes, comprising a main reactor, a separator and a return pipe, wherein the main reactor comprises a raw gas inlet, a return feed inlet, a protective gas inlet and a reaction material outlet; the separator is fluid communicated with the reaction material outlet of the main reactor at a top of the separator; a magnetic separating unit is arranged in the top of the separator at a side proximal to the main reactor; a product outlet and a material recycling port are arranged at a bottom of the separator respectively; the product outlet is located at a side distal to the main reactor; the recycling port is located at a side proximal to the main reactor; one end of the return pipe is fluid communicated with the material recycling port of the separator, and the other end is fluid communicated with the return feed inlet of the main reactor; the apparatus further comprises a tail gas outlet. This apparatus can realize continuous production of carbon nanotubes with increased utility of catalyst and raw materials at decreased cost, suitable for large-scale industrial production.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.