Raw coke for electricity storage carbon material and needle coke
US7959888B2 · kind B2 · utility
4Cited by
1References
9Claims
0Family size
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Key dates
| Filing date | Dec 27, 2006 |
| Grant date | Jun 14, 2011 |
| Priority date | — |
| Expiry date | Jan 2, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/13
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention provides a raw coke having such a structure that the graphitized product resulting from graphitization of the raw coke at a temperature of 2800° C. under an inactive gas atmosphere will have ratios of the crystallite size to the lattice constant of 360 or less in the (002) plane and 1500 or less in the (110) plane, as a raw coke providing active carbon produced by alkali-activating the raw coke, which is reduced in remaining alkali content and can simplify washing operation because washing liquid can easily pass through the activated carbon, or as a raw coke for the production of needle coke.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.