Coal depolymerization utilizing hard acid/soft base
US5298157A · kind A · utility
6Cited by
32References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 4, 1992 |
| Grant date | Mar 29, 1994 |
| Priority date | — |
| Expiry date | Aug 4, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G1/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for depolymerizing coal at low temperatures by contacting finely divided coal with a hard acid and soft base.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.