Process for producing synthetic caking coal and binder pitch
US4061472A · kind A · utility
2Cited by
3References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 25, 1975 |
| Grant date | Dec 6, 1977 |
| Priority date | — |
| Expiry date | Jul 25, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10B55/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A raw synthetic caking coal having a volatile matter content of 20 - 70%, H/C (atomic ratio) of 0.60 - 1.20 and a maximum fluidity of greater than 40 ddpm is produced by coking heavy hydrocarbons. Synthetic caking coal having a volatile matter content of 20 - 40%, H/C (atomic ratio) of 0.60 - 0.75, a maximum fluidity of greater than 40 ddpm and a Free-Swelling-Index of greater than 3 is produced from the raw synthetic caking coal by stripping said raw synthetic caking coal with steam or light hydrocarbons.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.