Reduced puffing needle coke from coal tar distillate
US8007659B2 · kind B2 · utility
3Cited by
25References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 3, 2008 |
| Grant date | Aug 30, 2011 |
| Priority date | — |
| Expiry date | Oct 19, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10C1/20
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A reduced puffing needle coke is formed, which includes a reduced nitrogen content within the coke so that the coke particles do not experience as much puffing during the formation of graphitized carbon articles produced from such coke upon heating to graphitization temperatures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.