Process for carbon production
US6045769A · kind A · utility
23Cited by
12References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 8, 1997 |
| Grant date | Apr 4, 2000 |
| Priority date | — |
| Expiry date | Dec 8, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB82Y30/00
- WIPO fieldMicro-structural and nano-technology
- WIPO sectorChemistry
Abstract
A method for the production of elemental carbon fibers and carbon particles uses highly uniform catalyst particles, preferably made by laser pyrolysis. Preferred catalyst particles include elemental iron, iron carbides or iron sulfides, generally with an average particle diameter from about 1000 nm to about 5 nm. Also, preferred catalyst particles have a narrow distribution in particle diameters as well as a cut off in particle size that the diameter distribution does not have a tail toward large diameters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.