Coke production from liquid derived from sub-bituminous and/or lignitic coal
US4326853A · kind A · utility
11Cited by
5References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 21, 1980 |
| Grant date | Apr 27, 1982 |
| Priority date | — |
| Expiry date | Mar 21, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G1/002
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
In the liquefaction of a sub-bituminous and/or lignitic coal, an ash containing coal liquid is heated to a temperature of from 410.degree. C. to 450.degree. C., and delayed coked adiabatically at a pressure of from 15 psig to 120 psig to produce an ash containing soft coke, having a volatile matter content of above 16% and generally no greater than 30%, all by weight, which is particularly suitable as a blending stock for the production of metallurgical coke.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.