Process for the production of high purity coke from coal
US4943367A · kind A · utility
4Cited by
11References
4Claims
0Family size
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Key dates
| Filing date | Jun 21, 1989 |
| Grant date | Jul 24, 1990 |
| Priority date | — |
| Expiry date | Jun 21, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25C3/125
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
High purity coke particularly suited to the production of anodes for aluminium smelting is produced by an integrated process that includes flash pryolysis and delayed coking. In the integrated process, flash pyrolysis of carbonaceous materials such as coal, oil shale or tar sand is operated under conditions that maximize the production of tar suitable for coking, and the delayed coking is operated under conditions that maximize the coke yield, and intermediate products may be recycled to enhance overall efficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.