Upgrading of pyrolysis tar
US4762608A · kind A · utility
9Cited by
10References
15Claims
0Family size
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Key dates
| Filing date | Dec 20, 1984 |
| Grant date | Aug 9, 1988 |
| Priority date | — |
| Expiry date | Dec 20, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G45/02
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Pyrolysis tars are upgraded by hydrotreatment in the presence of a catalyst having a hydrogenation component and an acidic component. The treated pyrolysis tars are used to produce premium cokes useful in the production of graphite electrodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.