Coal solubilization
US5120430A · kind A · utility
10Cited by
9References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 28, 1990 |
| Grant date | Jun 9, 1992 |
| Priority date | — |
| Expiry date | Sep 28, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G1/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method of solubilizing organic material in a coal includes the steps of contacting the coal with a medium comprising an organic solvent and a strong base or phenoxide reactively associated with the solvent. The solvent may be an aprotic dipolar solvent such as N-methyl pyrrolidone. The strong base may be sodium or potassium hydroxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.