Process for the production of petroleum tar pitch for use as a binder in the production of electrodes
US4961837A · kind A · utility
4Cited by
11References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 28, 1989 |
| Grant date | Oct 9, 1990 |
| Priority date | — |
| Expiry date | Apr 28, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10C3/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for the production of high quality petroleum tar pitch for use as a binder in the manufacture of electrodes for the aluminum and steel industries from a highly aromatic feed comprises fractionating the feed in an oxygen-free environment under controlled conditions so as to obtain a specific quality petroleum tar pitch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.